home→Treatment→ Rst blood test decoding. Thrombocrit and its significance in diagnosis

Rst blood test decoding. Thrombocrit and its significance in diagnosis

Thrombocrit is not yet widely used as a blood parameter. The use of this parameter is associated with the beginning of the widespread use of modern laboratory equipment that came from abroad. At the same time, international terminology was introduced in the designation of the parameters and diagnoses of diseases.

The apparent consonance between the terms thrombocrit remains only consonance, since these terms refer to completely different blood parameters. By the level of thrombocrit, you can estimate the proportion, and by the level of hematocrit, the situation with red blood cells is assessed.

Note that the thrombocrit parameter is clearly underestimated by doctors, since its indicators can provide additional information about the state of the body.

Thrombocrit (PCT - platelet crit) is a blood parameter that characterizes the proportion of peripheral blood volume occupied by platelets - the main cells involved in clotting processes. It is one of the main platelet indices.

The specified element directly depends on the average value of the volume of altered platelets (MPV).

Also, the level of the share of platelet volume in the blood is influenced by such factors as:

Physiological fluctuations in the level of platelet count. It can be either daily or seasonal. Often manifested as thrombocytosis and thrombocytopenia.
Menstruation in women.
Pregnancy.
Hypovitaminosis.
depressive disorders.
Smoking.

For reference. Currently modern medicine did not fully determine the full value of such a factor as thrombocrit. But, nevertheless, such an element has a certain diagnostic value.

Significance in diagnosis

First of all, using the determination of thrombocrit indicators, the following aspects are established:

Determining the risk of bleeding, increased thrombosis (thrombocytosis condition).
Assessment of the benefit / risk ratio when prescribing certain medicines.

The most famous reasons for determining the indicated indicator in the blood are:

High temperature of the patient of unknown origin.
Evaluation of treatment with immunosuppressive drugs.
Viral, bacterial, fungal infection of the body of a severe degree.
The patient's stay on artificial lung ventilation.
Complications after organ transplantation.

Important. It should be borne in mind that any change in the number of cells of a platelet germ - an increase (thrombocytosis), a decrease (thrombocytopenia), a change in shape, aggregation - immediately affects the thrombocrit numbers.

To assess the indicators of platelet distribution in peripheral blood, it is necessary to know its normal values.

What is considered normal

A variety of sources indicate different norms for thrombocrit values. But, the generally accepted normal indicators for children and adults are from 0.15% to 0.4%.

Due to the fact that the number of platelets for the body is constant at any age, respectively, its ratio with blood plasma in the analysis will be the same for both children and adults.

Some deviations from the norm are allowed for physiological reasons, which were mentioned above. For example, in a healthy person during sleep, a significant decrease in thrombocrit is possible, which is restored in the morning.

Read also related

If fibrinogen is elevated, what does it mean for the body

During an uncomplicated pregnancy, for example, the ratio of platelets in the total blood mass changes. In this case, enhanced monitoring of the state of platelet characteristics of the blood is necessary in order to avoid the development of bleeding or, conversely, thrombosis.

Do not confuse the meaning of "thrombocrit" and "platelets". The fact that the first indicator reflects the state of platelets does not mean that the level of platelets can always be used to judge the nature of its changes. In some cases, even a slight deviation from the norm of thrombocrit indicators indicates the development of formidable conditions for the body, while platelet counts are still normal.

It is important to know about the reasons for the increase and decrease in such an indicator as thrombocrit in the blood in order to timely identify certain pathological changes in organism.

Causes of increased thrombocrit

When stimulating a platelet germ of hematopoiesis, as a rule, thrombocrit also increases in the vast majority of cases. This is the body's response to the development of the pathological process.

The indicator above the norm is mainly typical for patients in the following situations:

Thrombocytosis.
Myeloid leukemia, polycythemia vera, primary thrombocythemia, thrombocytopenic purpura, chronic myeloid leukemia.
Iron-deficiency anemia.
Splenectomy.
Infectious diseases of the body of various etiologies.
Tuberculosis.
Diabetes mellitus, especially type II.
Hyperthyroidism.
Nonspecific ulcerative colitis.
Atherosclerosis.
Osteomyelitis.
Tissue necrosis of any origin and localization.
Fractures of tubular bones.
Smoking more than 20 cigarettes per day.
Rheumatism.
Major surgical interventions.

Despite the variety of reasons, when thrombocrit is elevated, the risk is primarily excluded:

Myocardial infarction.
Acute thrombosis of cerebral vessels.
Thromboembolism of the pulmonary arteries.
Thrombosis of the veins of the lower extremities.

No less informative is its reduced levels, which must also be taken into account when diagnosing various diseases.

Causes of a decrease in thrombocrit

The main trigger factors influencing the decrease in such an indicator are:

Increased destruction of platelets.
Suppression of the formation of platelets from megakaryoblasts (these are the cells from which platelets are subsequently formed).

The reasons why this indicator decreases are as follows:

Increased risk of bleeding.
Myelocytic dysplasia.
Megaloblastic and aplastic anemias.
Systemic lupus erythematosus, scleroderma, and other autoimmune connective tissue diseases.
Prolonged folic acid deficiency.
Allergy to various antigens.
Malignant neoplasms of the hematopoietic system.
Poison poisoning.
Chemotherapy and side effects other drugs (cytostatics, immunosuppressants, etc.).
High radiation.
Viral diseases.
Chronic insufficiency of liver/kidney function.
Cirrhosis of the liver.
Premature babies, full-term babies born in a state of asphyxia.
Worm infestations.
immunodeficiency states.
postpartum period.

The most important diagnostic criterion for a decrease in thrombocrit is an increased risk of bleeding.

Also, while not yet established diagnosis and its causes, but already a certain low level of thrombocrit and cellular composition of platelets in patients, precautions should be observed. Such measures are to preserve the integrity of the skin in order to avoid the development of bleeding and infection.

Attention. An increase or decrease in thrombocrit is not a disease. This condition is a consequence of the development of any pathological process in the body. And yet, at the same time, there are certain signs characteristic of a change in its numbers.

Clinical manifestations of altered thrombocrit

Since this parameter is not an independent disease, then, accordingly, there are no such signs.

Before the advent of analytical hematological systems that produce a clinical blood test in an automatic mode, such an indicator as thrombocrit did not appear at all in the number of laboratory tests. However, earlier platelets, although they were included in the list of parameters of the general blood test (CBC), were counted at the individual request of the attending physician (these cells require a special approach: preliminary lysis and a separate staining method).

Hematological analyzers not only count all blood cells without problems, but also calculate erythrocyte and platelet indices, hematocrit and thrombocrit, thereby freeing laboratory diagnostic doctors from the tedious work associated with mathematical formulas.

Thrombocrit and its norm

Thrombocrit (PCT) is the proportion of the volume of whole blood taken up by platelets (platelets). Thrombocrit is an analogue, but if the hematocrit can still be somehow, albeit approximately, determined after spontaneous, then this number does not work with this parameter. Platelets outside the bloodstream, falling on a surface that is foreign to them (for example, a container in which blood was placed), acquire pseudopodia, significantly (up to 10 times) increase in size (what thrombocrit is there already?), Then stick together and form aggregates. This feature of platelets creates difficulties in their study, as well as in storage for transfusion (they must rotate all the time), so an automatic analyzer in this case is indispensable. Meanwhile, such a parameter as thrombocrit has not yet been widely used.

Thrombocrit as part of a general blood test characterizes the percentage of platelet mass in the volume of whole blood and informs about an unacceptable decrease or increase in platelets in a particular patient. The norm of this indicator in the blood is 0.15 - 0.4(in different sources: 0.12 -0.36, 0.12 - 0.38, 0.11 - 0.28 ...).

Science does not distinguish between normal values in children and adults., indicators of the platelet link increase or decrease in proportion to each other in accordance with age, therefore, one should not expect any special differences in the child. Another thing - physiological fluctuations in the number of platelets:

Daily and seasonal fluctuations can change the number of plates by 10% (depression at night and in the spring) - PCT may be below normal or at the lower limit;
Menstruation in women can lower the rate by 50%, there will be a lower PCT in pregnant women (this is due to natural protection against thrombosis);
Platelets are also "not indifferent" to physical activity: a change in thrombocrit upwards (perhaps 2 times higher than normal).

However, this parameter in the KLA is by no means studied to reveal its physiological abilities. Perhaps he has another purpose?

Above and below normal

Thrombocrit is determined in order to assess the degree of risk of bleeding and / or thrombosis, and this, as you know, is already a threat to human life and health.

The causes of increased are most often associated with a violation in the hematopoietic system or may be the result of the body's reaction to other pathological processes that lead to stimulation of platelet production and change the indicators of the state of the platelet link. A platelet level above normal (high or somewhat elevated) can be expected in the following pathological conditions:

Myeloproliferative diseases (, chronic);
For some period (usually 2 months) after the removal of the spleen;
Conditions associated with iron deficiency in the body;
viral infections and inflammatory diseases other etiology;
Enhanced thyroid function;
Bad habit in the form of smoking.

Not less dangerous are the values of the indicator below the norm. Severe hematological pathology, which is the main reason for the decrease in the number of platelets, tends to 0 and thrombocrit. The reasons leading to a reduced content of thrombus mass in the blood volume () may be related to:

With inhibition of the megakaryocytic germ and a decrease in the production of platelets;
With increased destruction and utilization of platelets.

Thus, thrombocrit can be lowered in many diseases of the blood system, chronic pathological processes. internal organs, as well as the impact of other factors that negatively affect the number and functional abilities of platelets:

aplastic;
myelodysplastic syndrome;
Megaloblastic anemia;
collagenoses;
Hemoblastoses;
Ionizing radiation, chemicals, including some medications(antibiotics, cytostatics);
Tumors of the hematopoietic tissue;
viral infections;
Intoxication;
Cirrhosis of the liver;
CRF (chronic renal failure).

Of course, these are not all diseases that are characterized by increased or decreased thrombocrit. But if the reader is interested, then more complete information about this indicator and other characteristics of platelets can be found in the sections devoted to and separately.

A complete blood count is a necessary procedure that is prescribed if any disease is suspected. One of the significant parameters of the analysis is thrombocrit.

This is an indicator of platelet indices, which is calculated in relative and percentage terms. It is necessary to understand what it is and how to correctly decrypt the results.

Description of the indicator

Thrombocrit (the medical term for PCT) is the relative volume of platelets in the blood.

This indicator is easily associated with the total number of platelets in the blood and their average number. The only peculiarity is that other units of measurement are used and the analysis is carried out somewhat differently.

Generally speaking, the content of these bodies in the composition of the patient's blood will affect the value.

Platelets are considered non-nucleated blood cells. In the absence of deviations, their synthesis occurs in the bone marrow, and vital activity ends in the spleen after ten days. They are responsible for blood clotting.

If a wound begins to bleed during injury, then they go to it and, connecting with each other into plates, close the hole.

With a small number of platelets, that is, when the thrombocrit is below normal, the risk of developing severe bleeding increases. However, a high rate is also not a good thing, since the likelihood of thrombosis increases. Both in the first and in the second case, a fatal outcome is not excluded.

Why you need to do an analysis

Determination of pct in a blood test is necessary to solve several problems. First of all, this study allows you to establish how high the tendency to develop bleeding or blood clots.

In addition, this indicator is used in assessing the risk of complications when treatment is carried out for prevention.

Each specialist in the study of blood fluid clotting should take into account the platelet level.

As a rule, blood cells are not taken into account in the general indicator, and an analysis is carried out only if there was an application from a doctor. This is due to certain difficulties in determining thrombocrit.

The fact is that platelets have one feature: when moving into a foreign space, their number increases tenfold. After this, the cells stick together into aggregates.

This value is identified relative to the mean platelet volume. This means that with an elevated MPV level, there will be a high thrombocrit level. The same thing happens at a low rate.

Norm

Since the platelet value is unchanged regardless of age, the indicator in an adult is no different from that in a child.

A level within 0.11-0.29 percent is considered normal for both men and the female half of the population.

If even a slight deviation from the indicated values \u200b\u200bis diagnosed, then this may indicate the development of a pathological condition.

However, do not forget that there are situations in which some errors are allowed. For example, during pregnancy and during menstrual cycle thrombocrit may be reduced by half.

excessive physical exercise, on the contrary, contribute to a doubling of the value. Variations are also influenced by weather conditions.

For a more complete understanding of how thrombocrit is displayed in a blood test, you can consider the table below.

Conducting research

To determine the level of PCT, the patient is sent for a complete blood count. Fluid is taken from a vein or ring finger.

To obtain the most accurate results, you must follow some recommendations:

carry out the procedure on an empty stomach in the morning, only drinking clean water is allowed;
2 hours before the analysis, refuse fried, salty and spicy foods;
exclude alcoholic products;
stop taking medications.

To obtain data, automated microscopic examination systems are currently used, which makes it possible to determine at least 20 parameters.

Reasons for downgrading and upgrading

Among the main trigger factors that can lower RST are the following:

increased destruction of blood cells;
inhibition of platelet formation by megakaryoblasts.

The reasons why this figure may be lowered include:

folic acid deficiency for a long time;
manifestation allergic reactions on antigens;
high predisposition to bleeding;
increased radiation;
cirrhosis of the liver;
viral pathologies;
scleroderma, systemic lupus erythematosus;
kidney and liver failure chronic form;
poisoning with toxic substances;
aplastic and megaloblastic anemia;
the period after the birth of a child;
violations at work immune system;
prematurity, as well as diagnosing asphyxia in a child during childbirth;
malignant diseases hematopoietic systems;
worm infestations.

The main danger with a decrease in the indicator is considered to be a high probability of severe bleeding.

Among the reasons for a high pct are:

tuberculosis;
removal of the spleen;
lack of iron in the body;
thrombocytosis;
diabetes;
osteomyelitis;
excessive tobacco smoking (more than a pack per day);
rheumatism;
ulcerative colitis of nonspecific type;
tissue necrosis;
extensive surgical interventions;
diseases of infectious origin;
primary thrombocythemia.

There are many factors predisposing to increased thrombocrit, but first of all, it is necessary to exclude the presence of such pathological conditions, how:

heart attack;
acute thrombosis of cerebral vessels;
venous thrombosis of the legs;
pulmonary embolism.

If an increase in the rate is observed in children, including infants, then it is also necessary to take into account hereditary factors, for example, the presence of erythremia.

How changes in the indicator manifest themselves

Fluctuations in the level of thrombocrit in human blood can be accompanied by various frequently manifested symptoms. The main ones include:

sensation of itching of the skin;
frequent headaches;
gradual deterioration of vision;
menstruation in women for a long time;
pain that appears at the fingertips;
bruising and bruising even with minor injury;
weakness;
worsening general condition;
altered shade of the skin of the hands and feet;
the presence of blood fluid in the stool and urine.

With the available signs, not only a general blood test is performed, but also other studies.

When additional examinations are ordered

To determine the cause that could affect the change in the value of thrombocrit in the blood, the attending physician conducts additional diagnostics of the patient. At the same time, in addition to the UAC, it is also important to evaluate other parameters:

sugar content in the blood fluid;
duration of bleeding
fibrinogen and prothrombin index;
factors affecting coagulation;
liver tests;
protein composition;
urine test;
hormone levels (if necessary).

Without fail, the patient is sent to:

Ultrasound and radiography;
doppler examination;
magnetic resonance imaging of the brain;
bone marrow puncture.

It is also important to check how well the process of hematopoiesis proceeds.

Value normalization

If lowered

A drop in thrombocrit is observed if there are not enough plates in the blood, which are responsible for clotting.

First of all, it is important to review the diet. To increase the rate, experts advise:

Include plenty of fresh fruits and vegetables in your daily menu.
Be sure to eat meat and fish.
Do not use homemade preservatives and other products that contain vinegar.
Refuse chocolate, honey, citrus fruits.
Eat viburnum, cranberries and sea buckthorn.

Lifestyle changes play an equally important role.. Important:

do not overload the body with physical activity;
refuse any vaccinations;
allocate more time for rest and sleep;
do not take independent attempts at treatment;
protect yourself from even minor injuries.

To stimulate the medulla, experts prescribe the following drugs:

biostimulants (Actovegin, Solcoseryl);
cyanocobalamin;
thrombopoietin;
folic acid.

If severe bleeding develops, then urgent health care in stationary conditions. It is necessary to increase the level of platelets with the help of Etamzilat, Vikasol, aminocaproic acid.

When thrombocytopenia is caused oncological diseases, conduct chemotherapy and prescribe drugs of the glucocorticosteroid group.

If elevated

If a thrombocrit above normal is diagnosed, then an appointment is necessary medications, the action of which is aimed at thinning the blood. It can be acetylsalicylic acid or Trental.

If thrombocytosis is of a tumor origin, cytodepressants are used (Myelobromol, Mielosan). The duration of the course of therapy and the required dose are determined by the attending physician. In no case should you change the dosage or time of treatment yourself. This can pose a high risk to life.

In the absence of thrombohemorrhagic manifestations, there is no need for therapeutic measures.

Quit smoking and drinking alcohol.
Drink plenty of pure water, at least two liters a day.
Include berries and fruits, fish meat, garlic, buckwheat, dairy, seafood in the diet.

It is better to remove bananas, pomegranate and mango, chokeberry and walnut from the menu.

It is worth remembering that a decrease or increase in thrombocrit in the blood is not an independently developing pathology. As a rule, this condition can be triggered by a number of factors.

All therapeutic measures, first of all, are aimed at eliminating the disease that caused the change in indicators. At the same time, in order to bring the body back to normal, the patient must not only rely on the doctor, but also follow all the recommendations given to him and the advice of a specialist.

If the doctor says that the patient has thrombocytopenia, then you should not be scared right away, it just means that the person's thrombocrit is below normal.

The reasons for this condition may be different. First you need to understand what thrombocrit is, why this blood characteristic is so important for doctors, what can be determined from it, and what are the reasons for its deviation from normal values.

Thrombocrit is an indicator that characterizes the percentage of platelets in a given volume of blood.

Platelets are the smallest blood cells, they don't even have nuclei.

They are produced by myeloma tissue in the bone marrow, life cycle they are about 10 days, after which the platelets are utilized in the spleen.

They brought out such a characteristic of blood as thrombocrit relatively recently, because earlier the analysis of the number of platelets in human blood presented certain difficulties.

The fact is that platelets outside their usual habitat very quickly change their size, structure and even composition, they stick together with each other, so it was very difficult to calculate the exact number of platelets in a blood test.

The advent of modern analyzers allows not only immediately after taking a blood sample to calculate how many platelets were there, but also to carry out a percentage analysis of their relationship with the total blood volume.

Platelet crit is the Latin medical name for thrombocrit. Most often, doctors use the abbreviation pct, referring to thrombocrit.

For what purposes is this indicator used, what does it mean if thrombocrit is low? What are the normal values pct takes?

By the percentage of platelets per given volume of blood, one can immediately establish the presence or absence of such pathologies in a patient as susceptibility to thrombosis, or, conversely, hemophilic blood diseases.

In addition, the thrombocrit level helps doctors make the right appointments in case of diagnosing the disease that caused the patient to have low thrombocrit.

In a normal healthy person, the thrombocrit level can "jump" from 0.1% to 0.4%.

Such a difference between the values \u200b\u200bmay depend on the following reasons:

at night, in late autumn or early spring, the number of platelets in the blood, as a rule, drops by about 10%;
the state of pregnancy or hypermenorrhea can lower thrombocrit. In this case, the number of platelets in the blood may decrease by half;
an increased level of thrombocrit occurs in athletes during moments of increased physical exertion. In this case, it can increase by about two times.

It must be understood that in the body the function of platelets is to, figuratively speaking, clog holes, holes that form when blood vessels and tissues are damaged.

At the same time, low thrombocrit is just as dangerous as high. If, with a large number of platelets, the possibility of thrombocytosis sharply increases, then a small number of platelets in the blood will not be able to ensure normal blood clotting, stop bleeding, which can occur both as a result of damage to external human tissues and internal organs.

Reasons for low pct

Be sure to appoint a patient to donate blood for pct, the doctor can in the following cases:

when diagnosing sepsis in order to clarify the severity of the ongoing process;
in case of suspicion of bacterial or viral infections, which entailed the general serious condition of the patient;
feverish state of unknown origin;
in case of infectious complications during organ transplantation;
when connecting the patient to the ventilator;
to understand what treatment to prescribe in case of immunosuppression of the patient.

To take an analysis for thrombocrit, both an adult and a child must follow the following rules:

It is advisable to donate blood on an empty stomach before 9 o'clock in the morning;
before taking the test for a day, do not drink alcoholic beverages, do not eat fatty, salty, spicy foods;
it is advisable not to smoke before the analysis, because this action may cause a change in thrombocrit;
it would be best not to take any medications the day before the KLA, but if they still need to be drunk, then you should definitely notify the doctor about this;
women need to correlate their menstrual cycle with the test.

If the results of the analysis show that the thrombocrit is lowered, then you should not immediately try to prescribe treatment for yourself - this should be done by a qualified specialist, taking into account all possible reasons such a phenomenon.

A condition in which a person has persistently low thrombocrit occurs in about two percent of the world's population and most often refers to chronic diseases blood, characterized by low coagulability.

A thrombocrit level below normal values indicates that few platelets are synthesized in the bone tissue, and they are quickly destroyed.

The reasons that a person has a low thrombocrit can be in the following pathologies:

anemia of various kinds, both megaloblastic and aplastic;
autoimmune diseases (lupus erythematosus). At the same time, immunity for some reason marks platelets as cells harmful to the body and destroys them;
violations of the bone marrow for the production of platelets;
insufficient amount of folic acid and vitamin B12 in the diet;
oncological diseases of the blood;
liver hemangioma;
taking medications that thin the blood for a long time;
poisoning the body with various kinds of toxins, both when working in hazardous industries, and as a result of radiation or chemotherapy;
state of chronic renal failure;
cirrhosis of the liver and viral hepatitis;
allergic diseases;
damage to the body by worms.

If a child had a low weight (less than 2.5 kg) at birth and had breathing problems, then thrombocrit in this case is often below normal.

Children may show low thrombocrit when taking a course of antibacterial and diuretic drugs after a viral or bacterial infection.

The intake of corticosteroid and cytotoxic drugs can also cause a decrease in pct.

Symptoms and treatment of low thrombocrit

You can notice that you are not all right with the level of thrombocrit in the blood by the following signs:

constantly numb fingers on the lower and upper limbs. After the numbness passes, there is pain and tingling in the fingers;
the appearance of bruises and bruises throughout the body, most often concentrated on the legs, without any external causes;
any cut or minor injury does not heal for a long time, the blood coagulates with difficulty;
frequent nosebleeds;
a constant situation with heavy periods in women;
poor skin condition, itching all over the body;
spotting during urination and defecation;
non-removable with painkillers permanent headache, general weakness, malaise.

If in the general blood test it was found that the thrombocrit is much less than the lower limit of normal values, then the doctor will definitely prescribe repeated blood tests and the general condition of the patient, not limited to KLA.
Video:

In this case, the study of blood occurs according to the following parameters:

coagulogram blood tests;
blood clotting time;
analysis for PTI and fibrinogen;
the presence of protein and sugar in the blood;
the amount of iron;
ALT, AST, GGT blood;
urine analysis, which includes tests for the presence of nitrogenous products of protein breakdown, such as urea, creatinine;
tests for hormones and tumor markers if necessary.

Most likely, the doctor will prescribe an additional examination of the patient, including an echogram or an x-ray of the liver, kidneys, and spleen.

To understand the degree of vascular permeability, Dopplerography is done.

If malignant blood diseases are suspected, a puncture biopsy of the bone marrow and tissue examination for atypical cells are performed.

Thus, thrombocytopenia is not an independent disease, this condition accompanies diseases that were the cause of low thrombocrit.

Therefore, therapeutic measures are directed, first of all, against the disease, which led to a decrease in the number of platelets in the blood and the normalization of the patient's condition.

However, the person himself should not forget about how to behave correctly in a state of low thrombocrit.

try to avoid injuries, cuts, violations of the integrity of the skin. Do not forget that your blood is liquid and stops with difficulty, it is dangerous to provoke bleeding in this situation;
do not vaccinate, refuse, if possible, intramuscular injections;
swimming in the pool is allowed from physical activity, weight lifting should be excluded.

It is advisable to exclude acidic foods from the diet, all home preservation. Eat more red meat and apples.

One of the important methods for studying the current state of the patient is a clinical blood test - a procedure prescribed for suspected of a wide variety of diseases.

Its important parameter is thrombocrit - one of the indicators of platelet indices in percentage and relative value. What does it show and how to correctly interpret the results? You will read about it below.

What is thrombocrit and how is it determined?

Thrombocrit (medical designation - PCT) is the percentage of the volume of whole blood substance that is occupied. This setting is integral part platelet indices determined during a clinical detailed blood test. With its help, the doctor receives data not only on the number of platelets, he also reveals the exact values of red blood cells, white blood cells, hemoglobin and allows you to evaluate a number of other related parameters, for example, ESR.

Blood sampling for the determination of thrombocrit is carried out from a vein or ring finger. The analysis itself must be carried out on an empty stomach, while not using medications, refraining from physical activity, as well as drinking alcohol and smoking, before delivery.

Obtaining the necessary data on a clinical blood test in modern era produced by automated systems microscopic studies, able to determine and interpret up to 20 parameters.

Thrombocrit norm

The thrombocrit index is expressed as an absolute percentage value or as a fractional number (multiplied by 100%). As part of clinical analysis blood values from 0.11% to 0.29% are considered the norm, regardless of the age of the person and his gender.

Deviations from the above indicators do not always indicate the presence of pathologies or diseases.: There are a number of physiological factors that affect the readings of thrombocrit and are within the relative norm.

If one of the following reasons has been identified for you, be sure to inform the doctor about it so that he can take it into account when deciphering and evaluating the results of the analysis!

The beginning of the menstrual cycle in women. It is possible to decrease thrombocrit up to 50%;
Active physical activity - a possible increase in PCT readings by 2 times;
Natural fluctuations depending on weather conditions, time of year, emotional state of a person - deviations of 10-15% both above and below the norm.

What is this parameter used to determine? Mostly with its help, the risks of bleeding or thrombosis are assessed - pathological conditions dangerous to human health and life, rapidly or rapidly developing against the background of a number of health problems.

Thrombocrit above normal

Direct risks with an increase in thrombocrit are the formation and development of stroke, heart attack and thrombosis. Changes in normal parameters are a "litmus test" of obvious violations of the blood synthesis system or a secondary manifestation of a number of other pathological processes. Reasons why thrombocrit (pct) may be elevated:

Myeloproliferative disease. Myeloid leukemia in the chronic stage, polycythemia and other syndromes and diseases of this spectrum can increase the level of thrombocrit;
Atherosclerosis. Atherosclerotic processes always cause an increase in platelet indices;
Viral infections and systemic bacterial lesions of various etiologies;
Hyperfunction of the thyroid gland;
Diabetes mellitus of any type;
Iron deficiency in the body;
Consequences of operations, most often after removal of the spleen during the recovery period;
Bad habits - smoking and alcohol.

Thrombocrit is lowered

As mentioned above, with a decrease in thrombocrit, the risks of bleeding, both local and systemic, increase significantly. Most often, this process is tied to an extremely high level of utilization of platelet components or inhibition of megakaryocytic cell growth, resulting in a decrease in platelet production.

Reasons why thrombocrit may be lowered:

Tumors of the tissues of the hematopoietic system;
Viral infections of a wide range;
Megaloblastic / aplastic anemia and myelodysplastic syndrome;
Renal failure in the chronic stage;
cirrhosis of the liver;
Hemoblastoses and collagenoses;
Severe systemic intoxication;
Exposure to a number of drugs and substances: poisons, ionizing radiation, antibiotics, cystostatics.

There is no “magic pill” that immediately and permanently normalizes the level of thrombocrit in the blood. To get rid of a problem that is only a symptom of a disease, complex instrumental diagnostics and testing are required. Based on the history and these data, the doctor will be able to make a correct diagnosis by determining the true cause of the decrease in PCT, and then prescribe the necessary therapy and give additional recommendations for treatment.

As additional measures, it is usually recommended to normalize the nutrition system with the inclusion of foods rich in nutrients in the diet, regular moderate physical activity (if there are no direct contraindications to them), as well as observation of the patient in a day hospital.

Now you know what thrombocrit or pct is in a blood test. And also why is thrombocrit higher or lower than normal and what does it mean?