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Hematology Exam 5 Review Questions Flashcards | StudBud
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Hematology Exam 5 Review Questions
Hematology Exam 5 Review Questions
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1
Type of hemoglobin measured by automated systems.
Hemoglobin A2
cyanmethemoglobin
sulfmethemoglobin
dexoyhemoglobin
2
Elevated glucose causes to falsely increased_________.
Hemoglobin
MCV
MCH
RBC Count
3
NRBC's are counted as WBC's because___________.
they are a type of granulocyte.
morph into lymphocytes.
of their size.
they aren't lysed.
4
What should the MLS do if the analyzer flags a result?
Run the CBC off a light blue top specimen.
Cry
Perform a manual diff.
Perform a plasma replacement.
5
Where are NRBC's found on the VCS scatterplot?
2
7
1, 7, and 9
5
6
RBC, WBC, and platelet counts are determined by calculation.
True
False
7
Where are granulocytes located on this WBC histogram?
Over the rainbow
A
C
B
8
Principle of cell counting that is based upon measuring change in voltage as cells pass through an aperture
Flow Cytometry
Light Scatter
Impedence
LC-MS
9
The highly elevated granulocyte counts found in CML may cause__________.
RBC count to be falsly elevated.
the analyzer to shut down.
falsly elevated platelet count.
RBC count to be falsy decreased.
10
An R1 flag can be caused by giant platelets and malaria.
False
True
11
Manual methods of cell counting produce fewer artifacts and spurious results compared to automated methods.
True
False
12
An R3 flag at 160 fL indicates the presence of ____________.
Variant Lymphs
Howell Jolly Bodies, Malaria, or Polychromasia
Immature Granulocytes and Eosinophilia
Giant platelets and NRBC's
13
What WBC flag can indicate atypical lymphs and blasts?
R3
R2
R4
R1
14
Your analyzer gives an R3 flag and the following histograms. What type of anemia is present?
Megaloblastic anemia
Normocytic Normochromic
Spherocytosis
Microcytic Hypochromic
15
What do you suspect when viewing this histogram?
Microcytes
Immature Granulocytes
Electrical Interference
Bubbles
16
The MCHC is 38% and the chemistry tech tells you her sample is very lipemic. How can you correct the results?
Send the patient home on a low fat diet and to come back in a week.
Add a drop of albumin.
Don't worry. Report the results.
Perform a plasma replacement.
17
What do you conclude from these RBC, WBC, and platelet histograms and results?
The patient has an NC/NC anemia.
Your patient needs to be redrawn. All values are off.
Your patient has hypochromic/microcytic anemia.
CBC is within normal range.
18
WBC's are included in the RBC count because________.
anything between 2-20 fL is counted as an RBC.
WBC numbers do not significantly affect RBC count.
cells >36 fL are counted as RBC's
the WBC's are ejected in the waste and subtracted from the count.
19
A falsely elevated RBC count can lead to inaccurate MCV and MCH results.
False
True
20
Elements of CBC that are calculated. (Choose all the correct answers.)
MCV
Hematocrit
RDW
MCH/MCHC
