Author Question: A nurse is explaining activation of beta2 receptors to nursing students during a clinical rotation ... (Read 98 times)

stephzh · **on:** Jul 23, 2018

A nurse is explaining activation of beta2 receptors to nursing students during a clinical rotation at the hospital. Which statement by a student demonstrates a need for further teaching?

a. Beta2 activation results in bronchodila-tion.
b. Beta2 activation results in contraction of uterine muscle.
c. Beta2 activation results in glycogenoly-sis.
d. Beta2 activation results in vasodilation of skeletal muscles.

Question 2

The nurse is preparing to administer penicillin G intramuscularly to a child. The child's parents ask why the drug cannot be given in an oral liquid form. What is the nurse's reply?

a. This drug causes severe gastric upset if given orally.
b. This drug has a narrow therapeutic range, and the dose must be tightly controlled.
c. This drug is absorbed much too quickly in an oral form.
d. This drug would be inactivated by en-zymes in the stomach.

jaaaaaaa · **Reply #1 on:** Jul 23, 2018

Answer to Question 1

B
Beta2 activation would result in relaxation of uterine smooth muscle, not contraction; this state-ment indicates a need for further teaching. Bronchodilation is an effect of beta2 activation; no further teaching is needed. Beta2 activation does result in glycogenolysis; no further teaching is needed. Beta2 activation does result in vasodilation of skeletal muscle; no further teaching is needed.

Answer to Question 2

D
Penicillin G is inactivated by digestive enzymes in the stomach and cannot be given orally. It does not have a narrow therapeutic range.