Red blood cell diameter (MCD)

The red blood cell diameter refers to the diameter of red blood cells. The red blood cells are small in volume, only 7-8 μm in diameter, shaped like a disc, with a concave in the middle and a thick edge. It has elasticity and plasticity, and when it passes through a capillary having a smaller diameter than it, it can change its shape and return to its original shape after passing. Basic Information Specialist classification: cardiovascular examination classification: blood examination Applicable gender: whether men and women apply fasting: not fasting Tips: Do not eat too greasy, high-protein foods the day before the blood draw, avoid heavy drinking. Normal value Blood cell automatic analyzer 6 ~ 9μm. Clinical significance Abnormal results: (1) increase pernicious anemia, obstructive jaundice, severe liver damage and significant jaundice, emphysema and so on. (2) reduce iron deficiency anemia, chronic inflammation, uremia, other hypochromic anemia, chronic hemolytic jaundice. People who need to check: Anemia, emphysema, toxic urine, etc. The result is low, the disease may be: the result of hemolytic jaundice is high. Possible disease: emphysema precautions First, the precautions before blood draw: 1, do not eat too greasy, high-protein food the day before the blood, to avoid heavy drinking. The alcohol content in the blood directly affects the test results. 2. After 8 pm on the day before the physical examination, fasting should be done to avoid affecting the detection of indicators such as blood glucose in the second sky. 3, should relax when taking blood, to avoid the contraction of blood vessels caused by fear, increase the difficulty of blood collection. Patients with a history of fainting should explain in advance and we will make special arrangements. Second, after blood draw should pay attention to: 1. After blood is drawn, local compression is required at the pinhole for 3-5 minutes to stop bleeding. Note: Do not rub, so as not to cause subcutaneous hematoma. 2, the pressing time should be sufficient. There is a difference in clotting time for each person, and some people need a little longer to clotting. Therefore, when the surface of the skin appears to be bleeding, the compression is stopped immediately, and the blood may be infiltrated into the skin due to incomplete hemostasis. Therefore, the compression time is longer to completely stop bleeding. If there is a tendency to bleed, the compression time should be extended. 3, after the blood draw symptoms of fainting such as: dizziness, vertigo, fatigue, etc. should immediately lie down, drink a small amount of syrup, and then undergo a physical examination after the symptoms are relieved. 4. If there is localized congestion, use a warm towel after 24 hours to promote absorption. Inspection process A number of blood samples were taken from the subject, made into slides, observed under a microscope, the results were observed and the diameter of the cells was recorded. Not suitable for the crowd No taboos. Adverse reactions and risks No complications.

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