PT and PTT are used to ________. A) measure the effectiveness ...

[melina_rosy]

PT and PTT are used to ________.
 
  A) measure the effectiveness of an anticoagulant drug
  B) calculate the percentage of red blood cells in a blood sample
  C) monitor the progress of HIV infection
  D) diagnose pernicious anemia

Question 2

A bronchus enters the lung at the ________ (an indentation on the medial surface of the lung).
 
  A) alveolus
  B) hilum
  C) diaphragm
  D) apex

[momtoalll]

Answer to Question 1

A
Explanation: A) Correct
B) This describes a hematocrit.
C) This describes the CD4 test.
D) This describes the Schilling test.

Answer to Question 2

B
Explanation: A) The bronchus does not enter the lung at the alveolus.
B) Correct
C) The bronchus does not enter the lung at the diaphragm.
D) The apex is the rounded top, not an indentation, of the lung.

[melina_rosy]

Excellent

[apple]

Gracias!