On an atrial pressure tracing, which wave corresponds to atrial ...

[lunatika]

On an atrial pressure tracing, which wave corresponds to atrial diastole?
 
  a. a wave c. R wave
  b. c wave d. P wave

Question 2

A phonocardiogram is used to detect which of the following heart sounds?
 
  a. S1 and S2 c. S3 and S4
  b. S2 and S3 d. S1 and S4

[zacnyjessica]

Answer to Question 1

ANS: B
The c wave occurs at the beginning of atrial diastole and coincides with the period of ventricular systole and is associated with a transient increase in atrial pressure as the pressure in the ventricle increases and forces the closed atrioventricular valves backward into the atrial chamber.

Answer to Question 2

ANS: C
S3 and S4 are not typically heard with a stethoscope, but these sounds can be amplified and rec-orded graphically with a phonocardiogram.

[lunatika]

Thanks for the timely response, appreciate it

[Joy Chen]

Wow, this really help