A healthy 40-year-old man was sitting and having his blood drawn for routine labs. He suddenly becomes faint and his heart rate and blood pressure drop. He quickly awakens. What caused these symptoms?
A) His vagus nerve was stimulated.
B) His blood sugar dropped.
C) He had a seizure.
D) He had an episode of postural hypotension.
Correct Answer:
Verified
Q1: Cardiac cells are able to generate an
Q2: The QRS wave of an electrocardiogram (EKG)
Q3: Stimulation of alpha receptors results in:
A) vasoconstriction
Q5: Factor(s) that affect stroke volume include:
A) preload.
B)
Q6: The renin-angiotensin-aldosterone pathway:
A) is activated by renin.
B)
Q7: What is the mechanism of death following
Q8: A 62-year-old man had a left ventricular
Q9: Which of the following statements related to
Q10: A patient presents to the emergency department
Q11: With mitral valve prolapse, the leaflets:
A) are
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