Which of the following may cause a sinus bradycardia? a. ...

[newyorker26]

Which of the following may cause a sinus bradycardia?
 
  a. Stress or anxiety
  b. Increased sympathetic tone
  c. Fever
  d. Hypothermia

Question 2

Which of the following are possible causes of sinus bradycardia?
 
  a. Elevated temperature, pain
  b. Increased intracranial pressure, beta-blocker overdose
  c. Hypoxia, fright, caffeine-containing beverages
  d. Hypovolemia, administration of sympathomimetics

[brittrenee]

Answer to Question 1

D
Causes of sinus bradycardia include: disease of the SA node; hyperkalemia; hypokalemia; hypothermia; hypothyroidism; hypoxia; increased intracranial pressure; inferior myocardial infarction (MI); medications such as calcium channel blockers, digitalis, beta-blockers, amiodarone, and sotalol; obstructive sleep apnea; post heart transplant; posterior MI; and vagal stimulation.

Answer to Question 2

B
Causes of sinus bradycardia include: disease of the SA node; hyperkalemia; hypokalemia; hypothermia; hypothyroidism; hypoxia; increased intracranial pressure; inferior myocardial infarction (MI); medications such as calcium channel blockers, digitalis, beta-blockers, amiodarone, and sotalol; obstructive sleep apnea; post heart transplant; posterior MI; and vagal stimulation.