The main method of diagnosing diseases of bodies responsible for the process of hematopoiesis is the study of blood. The blood transports oxygen, nutrients, hormones enter therein, poisons and toxins, it comprises a body and immune important enzymes. Therefore the results of blood tests are important in the study of the state of the organism as a whole, and certainly tests carried out simultaneously with the investigation of urine, temperature measurement.
Depending on the objective pursued by doctors diagnosticians, there are different methods of blood analysis:
- morphological. It is to count thrombocytes, erythrocytes and leukocytes and qualitative study. The material for morphological studies is usually peripheral blood taken from a finger, ear lobe. In some cases, analyzed punctate lymph node or bone marrow.
- Physico-chemical and chemical research. It is conducted using biochemical equipment. Thus establish the level of urea nitrogen, glucose, bilirubin.
- Bacteriological method of blood testing. Used to detect bacterial infections and blood. Bacteriological analysis is carried out before the start of antibiotic treatment, otherwise you may get a false result. Patients who have inflammation in the background temperature rises, the blood taken for analysis or in the period of temperature rise, or as soon as it starts to decline.
- Serology blood. It is considered a basic and spend it for the diagnosis of viral, bacterial, and infectious diseases. Serology is also carried out blood transfusions of blood to determine blood group, the effectiveness of the vaccination establishment, the source of infection. Indispensable blood serology for diagnosis for autoimmune diseases. The material used blood from a vein, take it on an empty stomach.
The study of blood serum
Separately isolated analysis of blood serum - plasma treated according to the method of the natural coagulation or via calcium ions, resulting from blood removed colorless proteins (fibrinogen). The value of a blood serum test is for the reason that because of the lack of stability is increased fibrinogen levels, but with most of the antibodies in it persists.
Treated with plasma and serum study carried out if necessary to identify infections, to assess the effectiveness of the vaccination, determining the biochemical composition of the blood.
Blood test for HIV
HIV testing was carried out to identify the virus and antibodies thereto.
Blood test for HIV is preferably carried out at the hospital, preparation for surgery, planning a pregnancy after unprotected casual sex, with a sharp decrease in weight after the injection unsterile needles.
Results of research on the blood immunodeficiency virus by PCR may indicate HIV infection within two to three weeks after infection. This method of blood analysis in this case is considered the most reliable. It is also possible to carry out enzyme-linked immunosorbent assay, but it shows already formed in response to the virus antibody and an objective blood test results can only be obtained through the half or even three months after inoculation.
Blood analysis rent an empty stomach: must be at least eight hours after the last meal. Material for analysis take sterile syringes from a vein from the inside of the elbow, in the amount of 5 ml.
The result can be obtained in 2-10 days after giving blood, the doctor is obliged to report it anonymously to the patient and, if necessary, issue a referral for treatment.