Which stage of sleep accounts for the greatest proportion of ...

[javeds]

Which stage of sleep accounts for the greatest proportion of total sleep time in adults?
 
  a. 1
  b. 2
  c. 3
  d. 4

Question 2

The patient's blood pressure is 140/60 . The nurse realizes that this equates to a pulse pressure of
 
  a. 140.
  b. 60.
  c. 80.
  d. 200.

[ky860224]

Answer to Question 1

B

Feedback
A Stage 1 does not account for the greatest proportion of total sleep time in adults.
B Stage 2 accounts for the greatest proportion of total sleep time in adults, as it comprises 45 to 55 of total sleep.
C Stage 3 does not account for the greatest proportion of total sleep time in adults.
D Stage 4 does not account for the greatest proportion of total sleep time in adults.

Answer to Question 2

C
The difference between the systolic pressure and the diastolic pressure is the pulse pressure. For a blood pressure of 140/60, the pulse pressure is 80 (140  60 = 80). 140 is the systolic pressure. 60 is the diastolic pressure. 200 is the systolic (140) added to the diastolic (60), but this has no clinical significance.