NR566 | NR566 Advanced Pharmacology for Care
of the Family Wk 1 Final Exam v3 | Questions with
Correct Answers and Expert Explanation for Each
Question | Chamberlain
1. Which process describes the movement of a drug from its site of administration into
the blood?
A. Absorption
B. Distribution
C. Metabolism
D. Excretion
Correct Answer: A
Expert Explanation: Absorption is the process of a drug moving from the
administration site into the systemic circulation. The rate of absorption determines
how soon effects will begin, while the amount of absorption determines how intense
effects will be. Factors affecting absorption include surface area, blood flow, and
lipid solubility.
2. A patient with liver cirrhosis may experience drug toxicity primarily due to a decline
in which pharmacokinetic phase?
A. Absorption
,B. Metabolism
C. Distribution
D. Excretion
Correct Answer: B
Expert Explanation: Metabolism, or biotransformation, occurs primarily in the
liver via the cytochrome P450 enzyme system. In a patient with cirrhosis, the liver’s
ability to chemically alter drugs is impaired, leading to higher active drug levels and
potential toxicity. Clinicians must often adjust dosages or select drugs not
metabolized by the liver for these patients.
3. Which Federal Schedule includes drugs with a high potential for abuse but have a
currently accepted medical use, such as Morphine?
A. Schedule I
B. Schedule III
C. Schedule II
D. Schedule IV
Correct Answer: C
Expert Explanation: Schedule II drugs have a high potential for abuse and may lead
to severe psychological or physical dependence but are used medically. Examples
,include morphine, oxycodone, and methylphenidate. Prescriptions for Schedule II
substances cannot be refilled and require a new written prescription each time.
4. The ‘first-pass effect’ refers to the rapid inactivation of some oral drugs as they pass
through which organ?
A. Liver
B. Small Intestine
C. Kidneys
D. Stomach
Correct Answer: A
Expert Explanation: The first-pass effect occurs when orally administered drugs
are absorbed from the GI tract and carried directly to the liver via the portal vein. If
the liver has a high capacity to metabolize the drug, it can be entirely inactivated
before reaching systemic circulation. To circumvent this, such drugs are often given
parenterally or sublingually.
5. Which of the following describes the ‘steady state’ of a drug?
A. The time it takes for half of the drug to be eliminated
B. The maximum concentration a drug reaches in the plasma
, C. When the amount of drug eliminated between doses equals the dose
administered
D. The time required for the drug to start working
Correct Answer: C
Expert Explanation: Steady state occurs when the rate of drug administration
equals the rate of drug elimination. It typically takes approximately four to five half-
lives of a drug to reach this plateau. Once steady state is achieved, the plasma drug
levels remain constant within a therapeutic range.
6. A drug with a narrow therapeutic index (TI) requires which of the following clinical
actions?
A. Close monitoring of blood levels to avoid toxicity
B. Infrequent monitoring because the drug is safe
C. Administration of the drug only in emergency situations
D. Doubling the dose to ensure efficacy
Correct Answer: A
Expert Explanation: The therapeutic index is the ratio between a drug’s lethal dose
and its effective dose; a narrow TI means there is a small margin of safety. Small
of the Family Wk 1 Final Exam v3 | Questions with
Correct Answers and Expert Explanation for Each
Question | Chamberlain
1. Which process describes the movement of a drug from its site of administration into
the blood?
A. Absorption
B. Distribution
C. Metabolism
D. Excretion
Correct Answer: A
Expert Explanation: Absorption is the process of a drug moving from the
administration site into the systemic circulation. The rate of absorption determines
how soon effects will begin, while the amount of absorption determines how intense
effects will be. Factors affecting absorption include surface area, blood flow, and
lipid solubility.
2. A patient with liver cirrhosis may experience drug toxicity primarily due to a decline
in which pharmacokinetic phase?
A. Absorption
,B. Metabolism
C. Distribution
D. Excretion
Correct Answer: B
Expert Explanation: Metabolism, or biotransformation, occurs primarily in the
liver via the cytochrome P450 enzyme system. In a patient with cirrhosis, the liver’s
ability to chemically alter drugs is impaired, leading to higher active drug levels and
potential toxicity. Clinicians must often adjust dosages or select drugs not
metabolized by the liver for these patients.
3. Which Federal Schedule includes drugs with a high potential for abuse but have a
currently accepted medical use, such as Morphine?
A. Schedule I
B. Schedule III
C. Schedule II
D. Schedule IV
Correct Answer: C
Expert Explanation: Schedule II drugs have a high potential for abuse and may lead
to severe psychological or physical dependence but are used medically. Examples
,include morphine, oxycodone, and methylphenidate. Prescriptions for Schedule II
substances cannot be refilled and require a new written prescription each time.
4. The ‘first-pass effect’ refers to the rapid inactivation of some oral drugs as they pass
through which organ?
A. Liver
B. Small Intestine
C. Kidneys
D. Stomach
Correct Answer: A
Expert Explanation: The first-pass effect occurs when orally administered drugs
are absorbed from the GI tract and carried directly to the liver via the portal vein. If
the liver has a high capacity to metabolize the drug, it can be entirely inactivated
before reaching systemic circulation. To circumvent this, such drugs are often given
parenterally or sublingually.
5. Which of the following describes the ‘steady state’ of a drug?
A. The time it takes for half of the drug to be eliminated
B. The maximum concentration a drug reaches in the plasma
, C. When the amount of drug eliminated between doses equals the dose
administered
D. The time required for the drug to start working
Correct Answer: C
Expert Explanation: Steady state occurs when the rate of drug administration
equals the rate of drug elimination. It typically takes approximately four to five half-
lives of a drug to reach this plateau. Once steady state is achieved, the plasma drug
levels remain constant within a therapeutic range.
6. A drug with a narrow therapeutic index (TI) requires which of the following clinical
actions?
A. Close monitoring of blood levels to avoid toxicity
B. Infrequent monitoring because the drug is safe
C. Administration of the drug only in emergency situations
D. Doubling the dose to ensure efficacy
Correct Answer: A
Expert Explanation: The therapeutic index is the ratio between a drug’s lethal dose
and its effective dose; a narrow TI means there is a small margin of safety. Small
