blood sampling from the finger - a procedure quite common.With the necessity of such an analysis from time to time each person encounters, regardless of age and gender.Therefore, many are interested in how to take blood from a finger right?What determined during its investigations of samples?What rules should be followed to obtain the most accurate results?
analysis Why do you need?
Many patients clinics and hospitals in the first place send a blood test from a finger.In addition, such a study is conducted and prevention measures.To date, the study of the so-called samples of capillary blood is the most accessible and yet informative method.After all, the results give the doctor to determine the state of the whole organism.
Thanks to such laboratory studies can be installed more or less the exact formula of blood, as well as to determine its group, and that it contains the protein Rh factor.In addition, the general analysis allows to know the level of hemoglobin, and erythrocyte sedimentation rate indicators.
definition of blood formula: why is it necessary?
Laboratory research allows you to set the approximate number of formed blood cells, which makes it possible to determine the overall condition of the body.After all, it is no secret that almost any disease entails a change in the formula of blood.What is pay attention to the doctors and technicians?
- tabulating the number of leukocytes and differential analysis (determining the number of basophils, eosinophils, neutrophils, monocytes and lymphocytes).The number of white blood cells increased in the presence of infection and inflammation, wherein the change in level of each of the varieties of these cells indicates a certain problem.
- In addition, measures the level of hemoglobin and red blood cells.For example, reducing the number of red blood cells may indicate anemia.
- platelet count helps to establish the presence of certain diseases of the bone marrow, and can indicate a bleeding disorder.
What is ESR?
During the general analysis of blood being identified erythrocyte sedimentation rate.The results of this analysis are not specific - they indicate the presence of certain disorders, but do not provide information about the reasons for their occurrence.The essence of the study is simple - the sedimentation rate of red blood cells in the plasma depends on their ability to aggregation (agglutination).In normal ESR is 2-15 mm per hour in women and 1-10 mm per hour in men.The change indicator may be an indirect indication of inflammation and other pathological processes.
How to give blood from a finger?Terms of training
Immediately it should be noted that there are many factors that could affect the composition of blood and some of its properties.That is why many people are interested in the question of how to take blood from a finger correctly.In fact, the rules here are simple:
- rent blood from a finger in the morning, always on an empty stomach.Laboratory tests are the most accurate only if the samples shall be after 8-12 hours after the last meal.That is why most clinics blood sample is held from 7.00 to 11.00.
- the morning allowed to drink only a small amount of plain water (not soda, not sweet).
- exception can only be cases when a patient suspected of a serious, serious illness, such as heart attack, appendicitis, acute pancreatitis - in such situations can not wait until morning.
- In no case should not give blood if you have been drinking the previous evening drinks.The presence of alcohol in the body can distort the results of the test, so it is best to move the analysis for another day.
- Experts recommend to avoid sampling of intense exercise, as well as visits to saunas, receiving a cold shower.Strong effects on the external factors can affect the blood formula.
- Directly before analysis can not rub the tips of his fingers, as this may affect the number of white blood cells in the formula.
So look the rules on how to donate blood from a finger.Do not neglect the recommendations, because incorrect test results could affect the final diagnosis.
Taking blood from a finger: the algorithm
In the previous section described the preparation of the study.But he carried out blood sampling from the finger?The algorithm looks like this:
- capillary blood is taken from the fourth (the ring) finger of his left hand.
- To start assistant shall clean the skin with an antiseptic (most often for this purpose, a solution of alcohol).
- to puncture the skin using a special needle-lancet.Puncture produce the side of the first phalanx of the finger.The needle is inserted to a depth of 2.5-3 mm.
- should be noted that after a puncture blood must act freely.Some technicians greatly compress the tissue to improve blood flow.The problem is that at such pressure to the mixed blood and interstitial fluid, which, naturally, affects the outcome of the study.
- first protrusion drop of blood to be erased with a sterile cotton swab - it is not informative.
- first gaining a small amount of blood to determine the level of hemoglobin and ESR measurements.The second portion of the blood is used to determine the number of formed elements.Then, with the help of glasses make strokes that allow you to quickly examine the cells under a microscope.
- It should be recalled that during laboratory procedures required to use clean, sterile instruments and disposable gloves.
Where can I make such an analysis?
As mentioned above, the analysis of blood from a finger is assigned to almost every patient to consult a doctor complaining of health.This is the most simple, affordable and informative study, which provides expert information about the general state of the patient.
Therefore, blood sampling, as well as its laboratory study, carried out in almost every hospital and clinic.There are private diagnostic clinics offering the same service.If you have any questions about where to donate blood from a finger, then you just need to ask the attending physician.
