target red blood cells

The central part of the red blood cell of the target cell is stained deep, surrounded by a pale area, and the cell edge is deeply stained, shaped like a target for shooting. Some central deep-stained areas are not like islands, like peninsulas or handles extending from the edge of red blood cells, forming atypical target-shaped red blood cells. The target red blood cell diameter can be larger or normal than normal red blood cells, but the thickness is thin; the target red blood cells are common in various hypochromic anemia, and are particularly easy to be seen in globin-forming anemia. Basic Information Specialist classification: cardiovascular examination classification: blood examination Applicable gender: whether men and women apply fasting: not fasting Analysis results: Below normal: Normal value: no Above normal: negative: normal. Positive: Found in thalassemia, iron deficiency anemia, iron erythrocyte anemia, obstructive jaundice. Tips: Eat more fresh fruits and vegetables to ensure the intake of vitamins. Normal value None (negative). Clinical significance Positive thalassemia, iron deficiency anemia, iron erythrocyte anemia, obstructive jaundice, liver disease, splenectomy, familial serum lecithin cholesterol transacylase deficiency, hemoglobinopathy (HbC, HbE, HbD, HbS). Positive results may be diseases: iron deficiency anemia in the elderly, hemoglobin M disease, erythrocytosis secondary to severe liver disease, hemoglobin C disease, sickle cell anemia, iron deficiency anemia, anemia considerations As with the red blood cell count, it is necessary to pay attention to the difference caused by the change in the blood smear preparation. 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 Those without examination indications should not be tested. Adverse reactions and risks 1. Infection: Pay attention to aseptic operation when collecting blood, avoid contamination of water and other parts at the blood collection site to avoid local infection. 2, bleeding: after the blood is given a full compression time, especially coagulopathy, bleeding tendency, to avoid local subcutaneous oozing, bruising and swelling.