The QRS complex reflects: (Multiple Choice)

The QRS complex reflects:
 
  A) atrial depolarization.
  B) ventricular depolarization.
  C) ventricular repolarization.
  D) atrial repolarization.

Question 2

Which of the following is the BEST treatment for carbon monoxide poisoning?
 
  A) Control bleeding
  B) High flow oxygen
  C) Atropine
  D) Nitrous oxide

Question 3

Which one of the following statements about the P wave is TRUE?
 
  A) It represents ventricular depolarization.
  B) It is a rounded wave appearing after the QRS complex.
  C) It follows the R wave on normal ECGs.
  D) It corresponds to atrial depolarization.

Question 4

Which of the following would be a sign or symptom of carbon monoxide poisoning?
 
  A) Stomach cramping
  B) Spontaneous bleeding
  C) Double vision
  D) Headaches