Author Question: How often must controls be run for the PT and PTT? a. With each patient sample b. At least once ... (Read 37 times)

asd123

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How often must controls be run for the PT and PTT?
 
  a. With each patient sample
  b. At least once per 8-hour shift
  c. At least once per 24 hours
  d. With each batch of 10

Question 2

Patients with which of the following would have a normal PT?
 
  a. Liver disease
  b. Disseminated intravascular coagulation (DIC)
  c. Factor VII deficiency
  d. Factor IX deficiency



mariahkathleeen

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Answer to Question 1

ANS: B
Controls should be run at the beginning of each 8-hour shift and with each change of reagent for both of these tests.

Answer to Question 2

ANS: D
Patients with a deficiency of factor IX will have a normal PT. The PT does not require this protein.



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