CLS FINAL EXAM LATEST 2024 ACTUAL EXAM 180
QUESTIONS AND CORRECT DETAILED ANSWERS
WITH RATIONALES (VERIFIED ANSWERS)
|ALREADY GRADED A+
The process of stopping the loss of blood from the blood
vessels:
a) is an uncomplicated process
b) involves interrelated and interdependent systems
c) is called fibrinolysis
d) is independent of any action by the vessels -
...ANSWER...b
All of the following are true of platelets EXCEPT:
a) circulating platelets have a round disklike shape
b) contact with collagen initiates a shape change
c) a platelet plug forms in seconds to stop bleeding in a
small wound
d) platelet aggregation requires only that spiny pseudopods
are present on the platelets - ...ANSWER...d
Which of the following is initiated by damage to a blood
vessel?
a) vasoconstriction
b) coagulation
c) fibrinolysis
d) all of the above - ...ANSWER...d
All of the following are true of the coagulation factors
EXCEPT:
a) they are numbered in the order they were discovered
b) VIII:C is called the antihemophilic factor (AHF)
c) they are produced in the liver and circulate in the
activated form
d) the mineral calcium was formerly named factor IV -
...ANSWER...c
Which of the following is not true of the PT test?
a) coagulation screening test
b) measures intrinsic pathway
c) monitors oral anticoagulant therapy
d) reference value of 11-13 seconds - ...ANSWER...b
Which of the following will have no effect on the
prothrombin time?
a) severe vitamin K deficiency
b) liver disease
c) factor VIII deficiency
d) factor II dificiency - ...ANSWER...c
Which of the following cannot be used to perform a
prothrombin time test?
a) plasma
b) citrated whole blood
c)capillary puncture blood
d) serum - ...ANSWER...d
Which of the following is correct concerning quality
assessment when preparing a blood smear?
a) the procedure should produce minimal alteration of cell
distribution and morphology
b) venous anticoagulated blood must be well mixed before
making a smear
c) the only anticoagulant that can be used for smears is
EDTA
d) all of the above - ...ANSWER...d
Which of the following is not true when making blood
smears?
a) smears must be stained before they air-dry
b) smears from anticoagulated venous blood should be made
within 2 hours of blood collection
c) smears should have a feathered edge
d) capillary blood is preferred over venous blood -
...ANSWER...a
When preparing slides by the two-slide method, which is
true?
a) a large drop of blood makes the best smear
b) the spreader slide can be used to prepare several smears.
c) the smear should cover one-half to three-fourths of the
slide
d) smears with holes and ridges are acceptable -
...ANSWER...c
Which of the following is true regarding the preparation and
staining of a blood smear?
a) smears must be stained immediately
b) smears can be immersed in methanol and stained later
c) smears can be preserved by immersing in ethanol
d) Wright's stain contains no preservative - ...ANSWER...
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