Which of the following characteristics describe stage 2 non-REM ...

[oliviahorn72]

Which of the following characteristics describe stage 2 non-REM sleep? Select all that apply.
 
  A)
  It occurs at the onset of sleep and lasts approximately 7 minutes.
  B)
  During this stage, theta waves are primarily seen on EEG.
  C)
  This stage is known as deep sleep where heart rate and BP are decreased.
  D)
  This stage has interruptions of spindle activity that helps with integration of new memories.
  E)
  Muscles of the body are relaxed.

Question 2

A 60-year-old man has presented to his family physician following an earache that has become progressively more painful in recent days.
 
  Following a history and examination with an otoscope, the man has been diagnosed with otitis externa. Which of the physician's following statements to the man is most accurate?
  A)
  You'll need to avoid getting any water in your ear until you finish your course of antibiotic pills.
  B)
  I'm going to instill some warm water into your ear to flush out debris and bacteria.
  C)
  I'll prescribe some ear drops for you, and in the mean time, it's important not to use ear swabs.
  D)
  This likely happened because your ears aren't draining like they should, but antibiotics that you'll put in your ears will resolve this.

[Jossy]

Answer to Question 1

Ans:
B, D

Feedback:

Stage 2 non-REM sleep lasts approximately 10 to 25 minutes, where on EEG activity includes predominantly theta waves that are interrupted by sleep spindles consisting of bursts of high-frequency (12 to 14 Hz) waves. Answer choice A relates to stage 1 sleep that occurs at the onset of sleep and lasts approximately 7 minutes. Answer choices C and E relate to stages 3 and 4 of non-REM sleep, known as deep sleep where heart rate and BP are decreased and the muscles of the body are relaxed.

Answer to Question 2

Ans:
C

Feedback:

Antimicrobial ear drops are the standard treatment for otitis externa, and the ears must be protected from trauma during infection. Oral antibiotics are not commonly used, and flushing the ears is not indicated for the condition. A lack of normal ear drainage is not part of the etiology of otitis externa.