Excessive stimulation of the vagus nerve may result in:
a. Hypertension
b. Bradycardia
c. Tachycardia
d. Ventricular tachycardia
b
Rationale: a. Excessive vagal stimulation would result in hypotension
b. Correct. Stimulation of the vagus nerve results in the release of acetlycholine, the primary neurotransmitter of the parasympathetic nervous system. This results in opposition of the sympathetic nervous system and causes a decrease in the cardiac rate, or bradycardia
c. Stimulation of the vagus nerve would result in bradycardia
d. Stimulation of the vagus nerve results in asystole, not ventricular tachycardia
You might also like to view...
Which of the following statements shows that an OEC Technician has an accurate understanding of vital signs in relation to geriatric patients?
a. "The typical resting heart rate in geriatric patients is less than 60 beats per minute." b. "Fever tends to be more common and more severe in elderly patients." c. "There is no difference between the vital signs of a geriatric patient and those of a young adult." d. "Respiratory capacity is greatly reduced in geriatric patients."
In order for sweating to be an effective cooling mechanism:
A. several layers of clothing must be worn. B. it must be able to evaporate from the body. C. the relative humidity must be above 90%. D. the body must produce at least 1 L per hour.