oval red blood cells

The elliptocyte cells are oval, rod-shaped, and the length can be 3-4 times larger than the width, the maximum diameter can reach 12.5 μm, and the transverse diameter can be 2.5 μm. The red blood cells are placed in hypertonic, isotonic, hypotonic solution or normal human serum, and the elliptical shape remains unchanged, but the young red blood cells and the reticulocytes are not elliptical. In blood smears of patients with hereditary ellipsoidosis, the proportion of such red blood cells can reach 25%, or even as high as 75% (about 1% of normal people). Basic Information Specialist classification: growth and development examination classification: blood examination Applicable gender: whether men and women apply fasting: fasting Tips: The increase in the count can reduce the error. Normal value <15%. Clinical significance Increased hereditary elliptic polycythemia (25% to 50%), thalassemia, megaloblastic anemia, sclerosing sclerosing, iron deficiency anemia. High results may be diseases: pediatric hereditary elliptic polycythemia, primary bone marrow fibrosis in the elderly An increase in the count amount can relatively reduce the error. The red blood cell count decreased from 5 pm to 7 am and after meals, up to 10%. Bed rest can be reduced by 5.7% compared with normal activities. Therefore, time, diet and time should be properly considered when evaluating two blood test results. Bed rest and other factors. Red blood cell counts are highly prone to errors. Venous blood collection, long-term ligation of the tourniquet can cause false increase, the straw is unclean, not accurate, will count or increase or decrease, absorb the diluent, now use the manual dosing device, the volume should be calibrated before use, the counting plate If you want to buy the exact one, count enough to count. If you pay attention to it, the results obtained by the manual method still have good accuracy and can be used to correct the automatic counter. Inspection process (1) Take one tube and add 4 ml of the diluent. (2) Pipette 20 μl of peripheral blood with a calibrated micropipette. (3) Wipe off the remaining blood outside the pipette, blow 20μl of whole blood into the diluent, and wash the remaining blood in the pipette with the diluent, and mix immediately. (4) Wipe the counting plate and the cover glass and cover the cover glass on the counting plate. (5) Drain the mixed red blood cell suspension into the counting chamber with a pipette. (6) After standing for 2 to 3 minutes, use the high power microscope to count the cells on the red blood cell line on the four squares in the central square and the five squares in the middle, according to the principle of “no number, no number, no right”. count. The count error of each square in normal blood is not more than 10. Not suitable for the crowd Have a coagulopathy such as hemophilia. Adverse reactions and risks Subcutaneous hemorrhage: subcutaneous hemorrhage due to less than 5 minutes of compression time or blood draw technique.

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