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Author Question: On an atrial pressure tracing, which wave corresponds to atrial diastole? a. a wave c. R wave b. ... (Read 76 times)

lunatika

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on: Jul 16, 2018
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


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zacnyjessica

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Reply #1 on: Jul 16, 2018
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

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Reply 2 on: Jul 16, 2018
Gracias!

emsimon14

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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