NSG 533 advanced pharm exam 2 Latest
2024/2025 guide with complete
solution/Advanced Pharmacology Final
Exam Questions and Answers(100%
Verified)
Section 1: Pharmacogenomics & Genetics (Questions 1–15)
1. A nurse practitioner is explaining the difference between genetics and genomics to a
colleague. Which statement accurately describes genetics?
A. The molecular analysis of the entire genome of a species
B. The study of inherited traits and their variation in an individual
C. The total genetic composition of an organism or species
D. The study of influences on gene expression without changing DNA sequence
Correct Answer: B
Rationale: Genetics focuses on the study of inherited traits and their variation in an
individual, examining specific genes and their effects. Genomics refers to the total genetic
composition of an organism or species, while epigenetics is the study of influences on gene
expression without altering DNA sequence .
2. A researcher is studying a family in which a genetic disorder presents at an earlier age and
with greater severity in each successive generation. Which phenomenon best explains this
observation?
A. Penetrance
B. Mosaicism
C. Anticipation
D. Consanguinity
Correct Answer: C
, Rationale: Anticipation is the tendency for certain genetic disorders to present at an earlier
age and with more severe manifestations in successive generations. This is often due to
expansion of trinucleotide repeats. Penetrance refers to the proportion of individuals with a
mutation who exhibit symptoms .
3. Which term describes the proportion of individuals with a specific gene mutation who
actually exhibit the clinical symptoms?
A. Expressivity
B. Penetrance
C. Mosaicism
D. Anticipation
Correct Answer: B
Rationale: Penetrance is the proportion of individuals with a mutation who exhibit clinical
symptoms, often seen in autosomal dominant disorders. Expressivity refers to the degree of
phenotypic variation among affected individuals .
4. In autosomal dominant inheritance, which of the following is true regarding transmission?
A. Both parents must be carriers to transmit the disorder
B. The phenotype is expressed in individuals with one copy of a gene mutation
C. The disorder is seen only in every other generation
D. Males are more frequently affected than females
Correct Answer: B
Rationale: In autosomal dominant inheritance, a single copy of the mutated gene is
sufficient to express the phenotype. Both males and females are equally likely to inherit and
transmit the disorder. Huntington disease is an example with 100% penetrance .
5. A patient asks why some medications work well for her friend but not for her. The nurse
practitioner's best response incorporates which concept?
A. Drug-drug interactions are the primary reason for medication variation
B. Genetic variations affect how individuals metabolize medications
,C. Age and weight are the only factors that matter in drug response
D. Brand name medications work better than generic formulations
Correct Answer: B
Rationale: Pharmacogenomics explains how genetic variations influence individual
responses to medications, including differences in metabolism, efficacy, and adverse effects.
Cytochrome P450 enzyme polymorphisms are a key example .
6. Cytochrome P450 enzymes are responsible for which primary function in pharmacology?
A. Drug absorption from the gastrointestinal tract
B. Drug distribution to target tissues
C. Drug metabolism, primarily in the liver
D. Drug excretion through the kidneys
Correct Answer: C
Rationale: Cytochrome P450 enzymes are responsible for drug metabolism, primarily in the
liver. Genetic polymorphisms in CYP450 enzymes can significantly affect drug clearance and
response .
7. A patient with a known CYP2D6 poor metabolizer phenotype is prescribed codeine. What is
the most likely clinical implication?
A. Enhanced analgesic effect due to rapid conversion to morphine
B. Reduced analgesic effect due to decreased conversion to morphine
C. No effect on analgesic response
D. Increased risk of serotonin syndrome
Correct Answer: B
Rationale: Codeine is a prodrug that requires conversion to morphine by CYP2D6. Poor
metabolizers have reduced conversion, leading to decreased analgesic effect. Ultrapid
metabolizers may experience enhanced effects and toxicity .
8. A patient with a genetic variant resulting in reduced CYP2C9 activity is started on warfarin.
What is the most appropriate management strategy?
, A. Increase the warfarin dose empirically
B. Reduce the initial dose and monitor INR closely
C. No dose adjustment is needed
D. Switch to a direct oral anticoagulant immediately
Correct Answer: B
Rationale: Reduced CYP2C9 activity decreases warfarin metabolism, increasing bleeding
risk. Patients with this variant require lower initial doses and frequent INR monitoring.
Warfarin's S-enantiomer is metabolized by CYP2C9 .
9. Which term describes the proportion of individuals with a disorder-causing mutation who
actually exhibit clinical symptoms?
A. Expressivity
B. Penetrance
C. Heterozygote advantage
D. Anticipation
Correct Answer: B
Rationale: Penetrance is the proportion of individuals with a disorder-causing mutation who
exhibit clinical symptoms. Huntington disease is autosomal dominant with 100% penetrance.
Expressivity describes the degree of phenotypic variation .
10. A female patient has a child with an X-linked recessive disorder. What is the most likely
genetic status of the patient?
A. She is homozygous affected
B. She is a carrier
C. She is unaffected and not a carrier
D. She has the disorder
Correct Answer: B
Rationale: For an X-linked recessive disorder to be expressed in a female, she must have
two copies of the mutated gene. Since males have only one X chromosome, they are more
commonly affected. A female carrier has one mutated X chromosome and can pass the disorder
to her sons .
2024/2025 guide with complete
solution/Advanced Pharmacology Final
Exam Questions and Answers(100%
Verified)
Section 1: Pharmacogenomics & Genetics (Questions 1–15)
1. A nurse practitioner is explaining the difference between genetics and genomics to a
colleague. Which statement accurately describes genetics?
A. The molecular analysis of the entire genome of a species
B. The study of inherited traits and their variation in an individual
C. The total genetic composition of an organism or species
D. The study of influences on gene expression without changing DNA sequence
Correct Answer: B
Rationale: Genetics focuses on the study of inherited traits and their variation in an
individual, examining specific genes and their effects. Genomics refers to the total genetic
composition of an organism or species, while epigenetics is the study of influences on gene
expression without altering DNA sequence .
2. A researcher is studying a family in which a genetic disorder presents at an earlier age and
with greater severity in each successive generation. Which phenomenon best explains this
observation?
A. Penetrance
B. Mosaicism
C. Anticipation
D. Consanguinity
Correct Answer: C
, Rationale: Anticipation is the tendency for certain genetic disorders to present at an earlier
age and with more severe manifestations in successive generations. This is often due to
expansion of trinucleotide repeats. Penetrance refers to the proportion of individuals with a
mutation who exhibit symptoms .
3. Which term describes the proportion of individuals with a specific gene mutation who
actually exhibit the clinical symptoms?
A. Expressivity
B. Penetrance
C. Mosaicism
D. Anticipation
Correct Answer: B
Rationale: Penetrance is the proportion of individuals with a mutation who exhibit clinical
symptoms, often seen in autosomal dominant disorders. Expressivity refers to the degree of
phenotypic variation among affected individuals .
4. In autosomal dominant inheritance, which of the following is true regarding transmission?
A. Both parents must be carriers to transmit the disorder
B. The phenotype is expressed in individuals with one copy of a gene mutation
C. The disorder is seen only in every other generation
D. Males are more frequently affected than females
Correct Answer: B
Rationale: In autosomal dominant inheritance, a single copy of the mutated gene is
sufficient to express the phenotype. Both males and females are equally likely to inherit and
transmit the disorder. Huntington disease is an example with 100% penetrance .
5. A patient asks why some medications work well for her friend but not for her. The nurse
practitioner's best response incorporates which concept?
A. Drug-drug interactions are the primary reason for medication variation
B. Genetic variations affect how individuals metabolize medications
,C. Age and weight are the only factors that matter in drug response
D. Brand name medications work better than generic formulations
Correct Answer: B
Rationale: Pharmacogenomics explains how genetic variations influence individual
responses to medications, including differences in metabolism, efficacy, and adverse effects.
Cytochrome P450 enzyme polymorphisms are a key example .
6. Cytochrome P450 enzymes are responsible for which primary function in pharmacology?
A. Drug absorption from the gastrointestinal tract
B. Drug distribution to target tissues
C. Drug metabolism, primarily in the liver
D. Drug excretion through the kidneys
Correct Answer: C
Rationale: Cytochrome P450 enzymes are responsible for drug metabolism, primarily in the
liver. Genetic polymorphisms in CYP450 enzymes can significantly affect drug clearance and
response .
7. A patient with a known CYP2D6 poor metabolizer phenotype is prescribed codeine. What is
the most likely clinical implication?
A. Enhanced analgesic effect due to rapid conversion to morphine
B. Reduced analgesic effect due to decreased conversion to morphine
C. No effect on analgesic response
D. Increased risk of serotonin syndrome
Correct Answer: B
Rationale: Codeine is a prodrug that requires conversion to morphine by CYP2D6. Poor
metabolizers have reduced conversion, leading to decreased analgesic effect. Ultrapid
metabolizers may experience enhanced effects and toxicity .
8. A patient with a genetic variant resulting in reduced CYP2C9 activity is started on warfarin.
What is the most appropriate management strategy?
, A. Increase the warfarin dose empirically
B. Reduce the initial dose and monitor INR closely
C. No dose adjustment is needed
D. Switch to a direct oral anticoagulant immediately
Correct Answer: B
Rationale: Reduced CYP2C9 activity decreases warfarin metabolism, increasing bleeding
risk. Patients with this variant require lower initial doses and frequent INR monitoring.
Warfarin's S-enantiomer is metabolized by CYP2C9 .
9. Which term describes the proportion of individuals with a disorder-causing mutation who
actually exhibit clinical symptoms?
A. Expressivity
B. Penetrance
C. Heterozygote advantage
D. Anticipation
Correct Answer: B
Rationale: Penetrance is the proportion of individuals with a disorder-causing mutation who
exhibit clinical symptoms. Huntington disease is autosomal dominant with 100% penetrance.
Expressivity describes the degree of phenotypic variation .
10. A female patient has a child with an X-linked recessive disorder. What is the most likely
genetic status of the patient?
A. She is homozygous affected
B. She is a carrier
C. She is unaffected and not a carrier
D. She has the disorder
Correct Answer: B
Rationale: For an X-linked recessive disorder to be expressed in a female, she must have
two copies of the mutated gene. Since males have only one X chromosome, they are more
commonly affected. A female carrier has one mutated X chromosome and can pass the disorder
to her sons .
