In the study of hemorrhagic fluid, two concepts can be distinguished:
- general blood test;
- clinical blood test.
The concept of a general blood test is more extensive and:
- allows you to find out whether pathogenic microorganisms are present in the body;
- to reveal the quantitative concentration of enzymes and hormones in a biological fluid;
- assess the state of the immune system and the body's resistance to external factors;
- to investigate the state of physical and chemical blood counts.
This concept is the main one in most studies for the presence of known diseases in the body and is a pledge in setting the final diagnosis and prescribing medication.
The clinical blood test carries a narrower specialization and is aimed at studying the qualitative and quantitative composition of the biological fluid. Using this method, it is determined:
- the number of red blood cells and leukocytes;
- color index;
- erythrocyte sedimentation rate( ESR);
- content of hemoglobin.
This greatly facilitates the diagnosis of diseases, and is also widely used for the study and treatment of radiation sickness.
In addition, there are other laboratory blood tests. This includes biochemical analysis. It is needed to determine the metabolism in the body and the amount of hormones. Also in medical practice, there is a blood test for sugar, which is necessary to determine the level of sugar in the hemorrhagic fluid and identify hypoglycemic or hyperglycemic state.
To properly prepare, before you donate blood for laboratory testing, you need to know how it is done, and also how the procedure itself is carried out.
Preparation for general analysis and how it is carried out
On the evening before surrender, you must abandon fatty, spicy and salty foods. Non-compliance with this recommendation can lead to a false increase in white blood cells.
Taking biological fluid takes place in the morning, and the procedure is performed on an empty stomach, therefore, before going to the treatment room, should not eat and drink water .
The very medical procedure involves taking blood from the finger pad for a capillary test. If the patient feels tired, depressed and overworked, then it is necessary to consult a doctor before diagnosis, since such a state can distort the indicators, and the interpretation of the analysis will be incorrect.
How is the clinical analysis and preparation for it performed?
Before you donate blood for clinical analysis, you need to be properly prepared. You can not drink alcohol and eat too much fatty foods. About a day, stop taking non-steroidal analgesics that increase blood coagulability.2 hours before the procedure, stop smoking, which causes spasm of the peripheral vessels, which complicates the procedure itself. In addition, it is not recommended to drink strong tea or coffee. It is undesirable to carry out manipulation if there is a viral disease. The disease affects the cellular composition, so the diagnosis can be not entirely accurate. Unlike general and biochemical analysis, can eat and drink water before taking the test. Is there or not before surrender is only for the patient, if, of course, he has only clinical analysis in the plans, and not a comprehensive examination. In the latter case, before you take the hemorrhagic fluid, you should not eat and drink water before the procedure.
The very conduct of diagnosis involves taking capillary blood, ie, a fence from the finger pad. Here it is necessary to take into account that at the fence the presence of medical alcohol on the puncture site is unacceptable, therefore, after treatment of the finger pad, it should be immediately wiped with a sterile dry napkin.
If a clinical blood test is an expanded characteristic, in this case, a vein is taken from a vein using a special medical device, in which, under the influence of negative pressure, the blood is itself sucked into a special vacuum container.
Preparing for blood donation for sugar and how the
is analyzed Before going to the treatment room and donating blood, one should not take alcohol and medications one day before taking the sugar test. For 8 hours you can not eat and drink any drinks, except water. In the morning, it is not recommended to brush your teeth and chew the chewing gum. Immediately before the very medical manipulation is worth a minute to rest 15-20.
The very medical procedure for the analysis of sugar is carried out in the morning and for the diagnosis is used capillary blood from the finger pad.
How biochemical analysis and preparation for it are carried out
Recommendations for medical manipulation of biochemical analysis are simple enough, but at the time compliance with them is necessary.8 hours before taking blood, you should not eat and drink beverages with gas. In the evening, it is not recommended to eat candy, bakery products, drink coffee and tea, chew chewing gum. For 3 days before the manipulation, it is necessary to limit the consumption of fatty, spicy and salty foods , but at the same time it is impossible to radically change your habitual diet, it is only a restriction.
The hemorrhagic sample for biochemical analysis is taken from the vein in an approximate amount of 2 ml. About how much more is needed, can only tell the doctor.
How to prepare a child for blood testing
Often children experience fear of giving blood. It is important here to provide the child with moral and psychological support and eliminate the fear of "a man in a white coat" and the very injection. After all, with crying and resistance of the child, there is a release of hormones, which distorts the actual indicators of analysis.
To calm the child, you can distract him with a toy, offer to read a book, and at the time of medical manipulation as much as possible to caress the baby. You can also offer him after a procedure to try a portion of delicious treats or juice.
It is worth noting that it is not recommended at all to eat and drink sweet drinks before manipulation. This is due to the fact that the immunity of the child is reactively increased and failure to comply with this recommendation can give false indications about how many leukocytes are contained in the biological fluid and the result will show the presence of an inflammatory disease in the body.
