Question

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1. Given the following values, calculate the RPI: observed reticulocyte count=6.0%;Het = 0.30 L/L (which would give a maturation time of 2.0 days) 2. A manual white blood cell count was performed. A total of 36 cells were counted in all 9 "larger" squares of a Neubauer-ruled hemacytometer. A 1:10 dilution was used. What is the WBC? 3 3. In a reticulocyte count, 985 red cells and 15 reticulocytes were counted. What is the reticulocyte count? 10. A manual platelet count was performed on a Neubauer counting chamber using a 1:200 specimen dilution. A 1 square millimeter area was counted, and 40 platelets were counted. The calculated platelet count is:

Answer 1

☺ As, we knows 2 RPI = (Retic %) xf Hematocrit ^ Normal Hemato eritt (Normal hematocrit taken as 45). So, RPI = 6 *(0,3) cor TRPI = 0.04 Giren, dilution a long or Dilution factor a 101 36 cell in a square. Total WBC = total cell count cyg, X 104 xe ctitation factor or THBC = (36) x 104 x 100 or Total WBC = AX 105 © AS, Reticulocyte count = Retroulocytes ҚАС ,1985) = 0.015 (abbsvx;)] To Given ditution = 5x10 3 and Dilution factors 5x10 Platelets count = 40. Tatal platelets = Platelets count x 104 x dilation facta = 440 X 104 x 681034 - 2x.10% ]