Hematology Media Lab

MCV

Mean Corpuscular Volume (size)

MCH

Mean Corpuscular Hemoglobin (quantity of hemoglobin in cell)

MCHC

Mean Corpuscular Hemoglobin Concentration (Hemoglobin concentration in cell)

Indices equation for MCV

MCV = (Hct/RBC) x 10 fL

Indices equation for MCH

MCH = (Hb/RBC) x 10 pg

Indices equation for MCHC

MCHC = (Hb/Hct) x 100%

Side scatter is a measurement of ___

cell complexity (granularity)

Adult WBC reference range

4.4-11.0 × 10^9/L

Adult PLT reference range

150-450 × 10^9/L

Retic count reference range

0.5-1.5%

Basophilic stippling

aggregates of ribosomes

Pappenheimer bodies

aggregates of iron

Heinz bodies

aggregates of hemoglobin, requires supravital stain to observe

Howell-Jolly bodies

aggregates of DNA

What coagulation test result would be prolonged in a deficiency of Factor X?

PT and aPTT

Which factor deficiency can produce a normal aPTT and a prolonged PT?

Factor X deficiency

Bethesda assay used to measure the ___ and ___ of the inhibitor present in a patient’s sample

titer; activity

Prothrombin time is the ___ for bleeding disorders, used for monitoring ___ therapy.

Initial screening procedure; anticoagulant

Thrombin time is used to detect ___ in an aPTT mixing study

heparin interference

Differential counts on CSF should be performed on a ___ of a ___ to distinguish the cells’ morphology.

stained smear; cytocentrifuged specimen

Immunophenotyping is used to identify the lineage of ___ in acute ___ based on cell markers

blasts; leukemia

Low serum iron levels seen in anemia of chronic disease are due to the block of ___ release from ___.

iron; macrophages