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

Nursing

You might also like to view...

A nurse is caring for a terminally ill client. The client is exhibiting signs of multiple organ failure. Which of the following signs indicates failure of the liver?

A) Dyspnea B) Anorexia C) Oliguria D) Anuria

Nursing

The nurse established the nursing diagnosis of Alteration in nutrition: less than body requirements, related to persistent mild nausea. Which intervention should the nurse use for the diagnosis?

1. Complete the menu so the client can eat later. 2. Ask about specific foods the client may tolerate. 3. Withhold food and fluids until nausea resolves. 4. Provide cream of tomato soup every two hours.

Nursing

Which instruction will the nurse plan to include in discharge teaching for the patient admitted with a sickle cell crisis?

a. Take a daily multivitamin with iron. b. Limit fluids to 2 to 3 quarts per day. c. Avoid exposure to crowds when possible. d. Drink only two caffeinated beverages daily.

Nursing

The following statements are on a patient's nursing care plan. Which statement will the nurse use as an outcome for a goal of care?

a. The patient will verbalize a decreased pain level less than 3 on a 0 to 10 scale by the end of this shift. b. The patient will demonstrate increased tolerance to activity over the next month. c. The patient will understand needed dietary changes by discharge. d. The patient will demonstrate increased mobility in 2 days.

Nursing