megakaryocyte count

Under normal circumstances, megakaryocytes are blood cells unique to the bone marrow and are the mother cells of platelets in the human body. Myelodysplastic syndrome and the like. If the megakaryocytes are not found in the whole slice, it may be aplastic anemia, simple megakaryocyte production disorder or acute leukemia. Basic Information Specialist classification: growth and development examination classification: blood examination Applicable gender: whether men and women apply fasting: fasting Tips: Not suitable for people including hemophilia, severe clotting factor deficiency. Normal value There may be 20 to 80 megakaryocytes at different developmental stages on a 1.5 cm x 3.5 cm bone marrow smear. Clinical significance Abnormal results, if the number of megakaryocytes is significantly increased, more than 100, or hundreds of, can lead to myeloproliferative diseases, such as chronic myeloid leukemia, essential thrombocythemia, primary myelofibrosis and polycythemia Etc., may also be idiopathic thrombocytopenic purpura, hypersplenism, myelodysplastic syndrome. If the megakaryocytes are not found in the whole slice, it may be aplastic anemia, simple megakaryocyte production disorder or acute leukemia. Patients who need to be examined for abnormal megakaryocytes, or patients with the above symptoms. Precautions Before the test: the patient should relax and not be overly nervous. Before the puncture, the syringe must be checked for dryness to avoid hemolysis; whether the syringe and the puncture needle are not leaking. Check whether the length of the needle and the core are the same. If the needle is shorter than the needle, the needle is easily blocked by the broken bone. At the time of examination: there is a temporary pain during aspiration, which is normal. Immediately after the bone marrow fluid is withdrawn, the tablets should be smeared, otherwise they will solidify and cause the smear to fail. Actively cooperate with doctors. Inspection process Generally take the sternum, spinous process, anterior humerus, sacral or posterior iliac crest, etc., children under two years old puncture with the tibia. The bone marrow was taken for smear and staining. The dried bone marrow slices were counted, and the megakaryocytes were counted with a low power microscope, and classified into primitive megakaryocytes, immature megakaryocytes, granular megakaryocytes, plate-forming megakaryocytes, and naked nuclear megakaryocytes. Count out how many cells. Not suitable for the crowd A patient with hemophilia and severe clotting factor deficiency. Adverse reactions and risks Generally not.