Splitting of the second heart sound (S2) is normally most ...

[dbose]

Splitting of the second heart sound (S2) is normally most pronounced during which of the fol-lowing?
 
  a. Exhalation
  b. Breath holding
  c. Inhalation
  d. Forced exhalation

Question 2

Diastolic murmurs are generally associated with which of the following? 1. Stenotic semilunar valve 2. Incompetent atrioventricular (AV) valve 3. Incompetent semilunar valve 4. Stenotic atrioventricular valve
 
  a. 1, 2, and 3 only
  b. 2 and 4 only
  c. 3 and 4 only
  d. 1, 2, 3, and 4

[brbarasa]

Answer to Question 1

ANS: C
The normal splitting of S2 is increased during inhalation because of the decrease in intrathoracic pressure, which improves venous return to the right side of the heart and further delays pulmonic valve closure.

Answer to Question 2

ANS: C
Diastolic murmurs are created by an incompetent semilunar valve or a stenotic AV valve.

[dbose]

Excellent

[peter]

Thanks for the timely response, appreciate it