rod body

The rod-shaped bodies are in the blood smears stained by Wright or Giemsa, and a purple-red thin rod-like substance appears in the leukocyte slurry. It is about 1 to 6 μm long, and one or several pieces are indefinite. Rod-shaped bodies are more common in the immature granulocyte cytoplasm of acute myeloid leukemia, which are thick and short rods, usually 1 or 2; in the granule-producing promyelocytic leukemia (M3 type), several To dozens, some are bundled; in acute lymphoblastic leukemia, there are no rod-shaped bodies. Therefore, the rod-shaped body has a certain reference value for the diagnosis of acute leukemia and the identification of leukemia cell types. Basic Information Specialist classification: growth and development examination classification: blood examination Applicable gender: whether men and women apply fasting: fasting Tips: Inappropriate people include people who are overeating before drinking blood and drinking alcohol. Normal value One or several red thin rod-like substances appearing in the cytoplasm of leukocytes, and the length is about 1 to 6 μm. Clinical significance Abnormal result Rod-shaped bodies are only found in leukemia cells, so it is important to see rod-shaped bodies for the diagnosis and differential diagnosis of acute leukemia. In acute myeloid leukemia, the cytoplasm of immature granulocytes is more common, and the amount of thick and short rods can be more. In acute monocytic leukemia, there may be one in a slender rod shape, and no rod-shaped bodies appear in acute lymphocytic leukemia. The person in need of examination has acute leukemia and has not been diagnosed with the patient with acute cellular leukemia. Precautions Taboo before the examination: It is necessary to cooperate with the doctor to write the correct name, neat and tidy, to avoid confusion caused by the same name or similar names. With these in mind, blood draws are more convenient and faster, and you can better save yourself time for diagnosis. Requirements for inspection: 1. On the day of blood draw, do not wear clothes that are too small or too tight in cuffs to avoid the sleeves being too tight when blood is drawn or the sleeves are too tight after blood draw, causing blood vessels in the arms. 2. Different laboratory items should be asked by the doctor and treated differently. Such as blood sugar check, postprandial blood sugar, must be checked after eating, pre-meal blood sugar, must not eat before the morning check, before the blood lipid check, it is best not to eat foods with high fat, such as pork ribs soup, check cholesterol before Eat less or not eat eggs. Inspection process 1, the end of blood collection. 2, blood film: take a drop of peripheral blood, add to the right end of the slide, take the push piece from the left side of the blood drop to contact the blood, gently press the blood drop 2 to 3 times, so that the blood along the push piece and the slide Disperse, as shown in Figure 1, push the pusher to the left at a constant speed until the blood drop is exhausted. The blood film should be tongue-shaped, and the head, body and tail can be clearly divided. 3. Allow to stand at room temperature until it is naturally dry, or keep warm at 37 °C. 4, staining: flat blood film on the staining rack, drop 3 ~ 5 drops of Wright's dye solution, so that it quickly cover the blood film, about 1 minute, add 5 ~ 10 drops of buffer, with ear wash The blood is blown, so that the two liquids are thoroughly mixed. Allow to stand for about 10 minutes, wash off the dye solution with tap water, and dry. 5, microscopic examination: A. First use the low power microscope to observe the blood staining, white blood cell distribution and so on. B. Select the well-stained area at the junction of the blood film sheet tail. In the order of wall-wall advancement, 100 white blood cells were observed by oil mirror, and the percentage of various white blood cells was recorded separately. Not suitable for the crowd Those without examination for appropriate symptoms 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.