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Author Question: A patient's ECG recording shows a very long P-R interval. What is the cause of this abnormal wave ... (Read 75 times)

bobthebuilder

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on: Feb 27, 2019
A patient's ECG recording shows a very long P-R interval. What is the cause of this abnormal wave pattern?

Question 2

Which of the following does not contribute to seminal fluid?
 A) seminal glands
  B) prostate gland
  C) nurse cells and epididymis
  D) spermatic cords
  E) bulbo-urethral glands


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scottmt

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Reply #1 on: Feb 27, 2019
Answer to Question 1

The P wave marks the time of atrial depolarization and the QRS complex signals ventricular depolarization. Between those two events the AV node was excited and the action potential was spread through the conducting tissue to the ventricular myocardium. A prolonged P-R interval signifies an unusually slow conduction through the AV node and conducting system, possibly due to insufficient blood flow (ischemia).

Answer to Question 2

D


bobthebuilder

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Reply 2 on: Feb 27, 2019
Gracias!

mcabuhat

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

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