Routine blood examination usually includes the following contents: red blood cell count (RBC), hemoglobin (Hb), white blood cell (WBC), white blood cell classification count and platelet (PLT), platelet count (PLT), hemoglobin count (Hb/HGB), hematocrit (HCT/PCV) and platelet count (PLT/PC).
In addition, there are some parameters of red blood cells: mean volume of red blood cells (MCV), mean hemoglobin content of red blood cells (MCH), mean hemoglobin concentration of red blood cells (MCHC), red blood cell volume distribution width (RDW) and so on. By observing the quantitative changes and morphological distribution, diseases can be judged. It is one of the auxiliary examination methods commonly used by doctors to diagnose the disease.
Extended data
Note: Before inspection:
(1) Don't eat too greasy and high-protein food the day before blood drawing to avoid excessive drinking. The alcohol content in blood will directly affect the test results.
(2) Fasting 12 hour should start after 8 pm the day before physical examination, so as not to affect the examination results.
(3) Relax when taking blood, so as to avoid blood vessel contraction caused by fear and increase the difficulty of blood collection.
After inspection:
(1) After blood drawing, it is necessary to locally press the pinhole for 3-5 minutes to stop bleeding. Note: Do not rub it to avoid subcutaneous hematoma.
(2) The pressing time should be sufficient. The coagulation time varies from person to person, and some people need a little longer to coagulate.
(3) After blood drawing, if you have dizziness, dizziness, fatigue and other symptoms, you should lie down immediately and drink a small amount of sugar water.
(4) If there is local congestion, wet compress with a warm towel after 24 hours can promote absorption.
Refer to Baidu Encyclopedia-Blood Routine Examination