1. The patient is receiving two different drugs. At current dosages and dosage forms, both drugs are

absorbed into the circulation in identical amounts. Which term is used to identify this principle?

a. Bioequivalent

b. Synergistic

c. Prodrugs

d. Steady state

ANS: A Two drugs absorbed into the circulation in the same amount (in specific dosage forms) have the

same bioavailability; thus, they are bioequivalent. A drug’s steady state is the physiologic state in which the

amount of drug removed via elimination is equal to the amount of drug absorbed from each dose. The term

synergistic refers to two drugs, given together, with a resulting effect that is greater than the sum of the effects

of each drug given alone. A prodrug is an inactive drug dosage form that is converted to an active metabolite

by various biochemical reactions once it is inside the body.

2. When given an intravenous medication, the patient says to the nurse, “I usually take pills. Why

does this medication have to be given in the arm?” What is the nurse’s best answer?

a. “The medication will cause fewer adverse effects when given intravenously.”

b. “The intravenous medication will have delayed absorption into the body’s tissues.”

c. “The action of the medication will begin sooner when given intravenously.”

d. “There is a lower chance of allergic reactions when drugs are given intravenously.”

ANS: C An intravenous (IV) injection provides the fastest route of absorption. The IV route does not

affect the number of adverse effects, nor does it cause delayed tissue absorption (it results in faster

absorption). The IV route does not affect the number of allergic reactions.

3. The nurse is administering parenteral drugs. Which statement is true regarding parenteral drugs?

a. Parenteral drugs bypass the first-pass effect.

b. Absorption of parenteral drugs is affected by reduced blood flow to the stomach.

c. Absorption of parenteral drugs is faster when the stomach is empty.

d. Parenteral drugs exert their effects while circulating in the bloodstream.

ANS: A Drugs given by the parenteral route bypass the first-pass effect. Reduced blood flow to the

stomach and the presence of food in the stomach apply to enteral drugs (taken orally), not to parenteral drugs.

Parenteral drugs must be absorbed into cells and tissues from the circulation before they can exert their

effects; they do not exert their effects while circulating in the bloodstream.

4. When monitoring the patient receiving an intravenous infusion to reduce blood pressure, the

nurse notes that the patient’s blood pressure is extremely low, and the patient is lethargic and

difficult to awaken. This would be classified as which type of adverse drug reaction?

a. Adverse effect

b. Allergic reaction

c. Idiosyncratic reaction

d. Pharmacologic reaction

ANS: D A pharmacologic reaction is an extension of a drug’s normal effects in the body. In this case, the

antihypertensive drug lowered the patient’s blood pressure levels too much. The other options do not describe

a pharmacologic reaction. An adverse effect is a predictable, well-known adverse drug reaction that results in

minor or no changes in patient management. An allergic reaction (also known as a hypersensitivity reaction)

involves the patient’s immune system. An idiosyncratic reaction is unexpected

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