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

[Mollykgkg]

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]

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.

[Mollykgkg]

TYSM

[Dnite]

Gracias!