auxiliary Flashcards
color variations of RBCs
polychromatophilia
RBC count is reported as
liters (cubic millimeter or mm3)
not an RBC parameter
WBC count
lifespan of a normal RBC
120 days
reference range for ESR in males younger than 50 years old
0-15 mm/hr
test for pernicious anemia
Schilling test
poikilocyte is seen in renal insufficiency
echinocytes (burr cells)
Incomplete centrifugation of the microhematocrit tube will cause a/an ___ in hematocrit level
(false) increase
formula is used by automated hematology analyzers to compute for hematocrit
Hct = RBC count × MCV
immediate precursor of metamyelocyte
myelocyte
Round cells with pince-nez-shaped nuclei
Pelger-Huet
Reticulated platelets are also known as
stressed platelets
Pyruvate kinase deficiency is a/an
autosomal recessive
not inherited
DIC
other name HMWK
Fitzgerald
Normal PT
Normal aPTT
Abnormal 5M urea test
Factor XIII deficiency
typical range of platelets shed from a single megakaryocyte
2,000-4,000
principle of the fibrometer used in coagulation testing
Conduction or impedance of an electrical current by fibrin
used to reduce cell coincidence in an analyzer
Hydrodynamic focusing
In doing a blood smear, the spreader slide should be held at ___
30-45 degrees
not a platelet parameter
MCV
Differentiation among RBCs, yeast, and oil
droplets may be accomplished by: (3)
- Observation of budding in yeast cells
- Increased refractility of oil droplets
- Lysis of RBCs by acetic acid
Most common acquired platelet dysfunction:
Drug-induced
characteristic of anemia of renal
disease (2)
- Presence of burr cells in the peripheral blood smear
- Normocytic, normochromic
Part of flow cytometry (3)
Fluidics
Optics
Electronics
In protime effect if tube is not filled
prolonged
Romanowsky stain, except:
Hematoxylin
(Wright stain, Giemsa stain, May-Grunwald stain, Jenner’s stain, Leishman’s stain
A blood sample with high titer agglutinins was tested in room temperature with an electron
particle scanner. What indices would be erroneous
MCHC and MCV (Hct)
activates fibrinolysis
Tissue plasminogen activator
Acute myelomonocytic leukemia
M4
what morphologic changes occurs during normal blood cell maturation
Condensation of nuclear chromatin
A reduction in thrombin generation in patients with Scott Syndrome results from
Altered expression of phospholipids on the platelet membrane
blood film findings indicates EDTA-induced pseudo thrombocytopenia
platelets are adhering to WBCs
not a fragment degradation product of fibrinolysis
Fragment Z
(Fragment XYD)
molecular composition of hemoglobin
Four heme groups, two alpha and two beta globin chains
In leukemia, which term describes a peripheral blood finding of leukocytosis with a shift to the left, accompanied by nucleated red cells
Leukoerythroblastosis
“C” In VCS Hematology Coulter technology
Conductivity
(volume, scatter)
newer clinical instruments for measuring blood clotting are based on
conduction of impedance of an electrical current by fibrin
sorting of leukocyte subpopulations in the WBC histogram determined by electrical impedance reflects
- relative size
- nuclear size
