A group of interns at Wingsdale Hospital are watching Dr. Gerald and his team perform a surgery. During the surgery, Dr. Gerald resuscitates his patient from cardiac arrest by giving her an intravenous injection of epinephrine. As soon as the patient's condition improves, Dr. Gerald explains to his interns that when epinephrine binds to the beta receptors of the heart, it triggers an increase in heart rate and blood pressure. Based on the information provided in this scenario, we can conclude that epinephrine is acting as a(n):
A. partial antagonist.
B. antagonist.
C. modulator.
D. agonist.
Answer: D
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Fill in the blanks with correct word
The nurse has just inserted a nasogastric tube for gastric suction. What is the most reliable test for confirming tube placement?
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