Hematology

Which of the following is a normal hemoglobin value for a male adult person?

• 10g/dL

• 11g/dL

• 12g/dL

• 13g/dL

What parameter measures the Blood Packed cell volume?

• Cyanmethemoglobin

• microhematocrit

• Erythrocyte sedimentation rate

• Mean cell volume

For hct determination, the EDTA blood sample to be used should be processed within how many hours

• 4-5

• 5-6

• 2-3

• 6-7

Which of the following Hgb variant can not be measured using the cyanmethemoglobin method?

• Hgb S

• Hgb A

• sulfhemoglobin

• Hgb F

Give the reference value of Hgb for adult female person.

Which of the following will falsely elevate the HCT value?

• Dehydration

• improper sealing of the HCT tube

• over centrifugation of HCT tubes

• use of underfilled EDTA blood samples

Which poikilocyte may cause decrease Hgb value?

• codocyte

• sickle cell

• severely hypochromic red cells

• all of these

Which of the following Technical error may cause increase HCT value obtained?

• using a 2 hour old EDTA sample

• under centrifugation of HCT tubes

• improper sealing of one end of HCT tube

• use of underfilled EDTA blood sample

How many volume in mL of Drabkin's reagent is used, in which a 20uL of whole blood is placed into it, to create a 1:251 dilution mixture?

• 3

• 4

• 5

• 6

What is the MCV of the following: RBC = 4.85 x 10^12/L, HGB = 120 g/L, HCT = 0.345 L/L

• 71 fL

• 25 pg

• 348 g/L