auxiliary Flashcards

(40 cards)

1
Q

color variations of RBCs

A

polychromatophilia

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2
Q

RBC count is reported as

A

liters (cubic millimeter or mm3)

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3
Q

not an RBC parameter

A

WBC count

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4
Q

lifespan of a normal RBC

A

120 days

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5
Q

reference range for ESR in males younger than 50 years old

A

0-15 mm/hr

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6
Q

test for pernicious anemia

A

Schilling test

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7
Q

poikilocyte is seen in renal insufficiency

A

echinocytes (burr cells)

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8
Q

Incomplete centrifugation of the microhematocrit tube will cause a/an ___ in hematocrit level

A

(false) increase

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9
Q

formula is used by automated hematology analyzers to compute for hematocrit

A

Hct = RBC count × MCV

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10
Q

immediate precursor of metamyelocyte

A

myelocyte

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11
Q

Round cells with pince-nez-shaped nuclei

A

Pelger-Huet

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12
Q

Reticulated platelets are also known as

A

stressed platelets

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13
Q

Pyruvate kinase deficiency is a/an

A

autosomal recessive

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14
Q

not inherited

A

DIC

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15
Q

other name HMWK

A

Fitzgerald

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16
Q

Normal PT
Normal aPTT
Abnormal 5M urea test

A

Factor XIII deficiency

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17
Q

typical range of platelets shed from a single megakaryocyte

18
Q

principle of the fibrometer used in coagulation testing

A

Conduction or impedance of an electrical current by fibrin

19
Q

used to reduce cell coincidence in an analyzer

A

Hydrodynamic focusing

20
Q

In doing a blood smear, the spreader slide should be held at ___

A

30-45 degrees

21
Q

not a platelet parameter

22
Q

Differentiation among RBCs, yeast, and oil
droplets may be accomplished by: (3)

A
  1. Observation of budding in yeast cells
  2. Increased refractility of oil droplets
  3. Lysis of RBCs by acetic acid
23
Q

Most common acquired platelet dysfunction:

24
Q

characteristic of anemia of renal
disease (2)

A
  1. Presence of burr cells in the peripheral blood smear
  2. Normocytic, normochromic
25
Part of flow cytometry (3)
Fluidics Optics Electronics
26
In protime effect if tube is not filled
prolonged
27
Romanowsky stain, except:
Hematoxylin (Wright stain, Giemsa stain, May-Grunwald stain, Jenner’s stain, Leishman’s stain
28
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)
29
activates fibrinolysis
Tissue plasminogen activator
30
Acute myelomonocytic leukemia
M4
31
what morphologic changes occurs during normal blood cell maturation
Condensation of nuclear chromatin
32
A reduction in thrombin generation in patients with Scott Syndrome results from
Altered expression of phospholipids on the platelet membrane
33
blood film findings indicates EDTA-induced pseudo thrombocytopenia
platelets are adhering to WBCs
34
not a fragment degradation product of fibrinolysis
Fragment Z (Fragment XYD)
35
molecular composition of hemoglobin
Four heme groups, two alpha and two beta globin chains
36
In leukemia, which term describes a peripheral blood finding of leukocytosis with a shift to the left, accompanied by nucleated red cells
Leukoerythroblastosis
37
“C” In VCS Hematology Coulter technology
Conductivity (volume, scatter)
38
newer clinical instruments for measuring blood clotting are based on
conduction of impedance of an electrical current by fibrin
39
sorting of leukocyte subpopulations in the WBC histogram determined by electrical impedance reflects
1. relative size 2. nuclear size
40