Author Question: What occurs when a drug binds to a receptor in the body? a. It alters the receptor to become ... (Read 90 times)

Mollykgkg · **on:** Jul 23, 2018

What occurs when a drug binds to a receptor in the body?

a. It alters the receptor to become nonres-ponsive to its usual endogenous molecules.
b. It increases or decreases the activity of that receptor.
c. It gives the receptor a new function.
d. It prevents the action of the receptor by altering its response to chemical mediators.

Question 2

A nurse is teaching nursing students about inhalation anesthesia and asks, What is balanced anesthesia? Which response by a student is correct?

a. An anesthesia that has a brief induction period with a rapid emergence from its effects.
b. An inhalation anesthesia that produces both muscle relaxation and unconscious-ness.
c. An anesthesia that provides maximum analgesia with minimal respiratory side effects.
d. An anesthesia that combines other drugs with inhalation anesthesia to produce the desired effects.

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

Answer to Question 1

B
When a drug binds to a receptor, it mimics or blocks the actions of the usual endogenous regula-tory molecules, either increasing or decreasing the rate of the physiologic activity normally con-trolled by that receptor. It does not alter the activity of the receptor and does not give the receptor a new function.

Answer to Question 2

D
Balanced anesthesia is the use of a combination of drugs, along with an inhaled anesthetic, to produce effects that cannot safely be accomplished with inhalation anesthesia alone. These ad-junct drugs are used to help induce anesthesia, provide muscle relaxation, and increase analgesia so that a lower and safer dose of the inhalation anesthetic can be used. The other three options describe characteristics of an ideal anesthetic, which does not exist; to get these effects, a com-bination of other drugs must be used.