NR 565 - Advanced Pharmacology Midterm - Chamberlain University (Latest
2026/2027 Update) | Q&A | Grade A | 100% Correct (Verified Answers)
Subject: Advanced Pharmacology – NR 565 Midterm
Source: Chamberlain University College of Nursing – Current Curriculum
Format: Q&A Guide with Rationale • Pharmacokinetics • Pharmacodynamics • Drug Interactions
1: During what trimester is a pregnant woman most at risk for adverse drug reactions with
potential long-term consequences?
A. 1st trimester
B. 2nd trimester
C. 3rd trimester
D. All trimesters equally
Correct Answer: A. 1st trimester
1. The first trimester is when the fetus is most at risk for adverse drug reactions due to rapid
organogenesis and growth of critical structures.
2. Teratogenic effects are most likely to occur during weeks 3-8 of gestation when major organs
are forming.
3. Long-term consequences from drug exposure during this period can include structural birth
defects and developmental abnormalities.
2: What is the BEERS criteria?
A. A list of medications that are safe for use in pregnancy
B. Recommendations of medications inappropriate for elderly (65 and older); the prescriber ultimately
decides
C. Guidelines for prescribing opioids for chronic pain
D. A list of medications that require black box warnings
Correct Answer: B. Recommendations of medications inappropriate for elderly (65 and older); the
prescriber ultimately decides
1. The BEERS criteria provide recommendations for medications that are potentially
inappropriate for older adults (age 65 and older).
2. These medications may pose higher risks of adverse effects or have safer alternatives available.
3. The prescriber ultimately decides whether to use these medications based on clinical judgment
and patient-specific factors.
,3: What is the CYP450 (cytochrome P450) system?
A. A hormone system that regulates blood pressure
B. A liver enzyme system where medications are metabolized, can be either inducers or inhibitors, and
create drug-drug interactions
C. A kidney filtration system that eliminates drugs
D. A brain neurotransmitter system affected by psychotropic drugs
Correct Answer: B. A liver enzyme system where medications are metabolized, can be either inducers
or inhibitors, and create drug-drug interactions
1. CYP450 is a family of liver enzymes responsible for metabolizing many medications.
2. These enzymes can be induced (increasing metabolism) or inhibited (decreasing metabolism),
leading to significant drug-drug interactions.
3. Understanding CYP450 interactions is critical for safe prescribing and preventing adverse
effects.
4: How do CYP450 inducers affect drug metabolism?
A. They slow down metabolism, increasing drug levels
B. They speed up metabolism of drugs (drug is cleared faster), causing decreased drug effect and
decreased blood levels, while elevating CYP450 enzymes
C. They have no effect on drug metabolism
D. They only affect medications metabolized by the kidneys
Correct Answer: B. They speed up metabolism of drugs (drug is cleared faster), causing decreased
drug effect and decreased blood levels, while elevating CYP450 enzymes
1. CYP450 inducers increase the activity of metabolizing enzymes, leading to faster drug
clearance.
2. This results in lower serum drug levels and potentially reduced therapeutic effects.
3. Common inducers include carbamazepine, rifampin, phenytoin, and St. John's Wort.
5: What is the mnemonic for remembering CYP450 inducer drug names?
A. "VISA credit card debt INHIBITS spending"
B. "Bullshit Crap GPS INDUCES rage"
C. "Poor metabolism phenotype"
D. "Black box warning"
Correct Answer: B. "Bullshit Crap GPS INDUCES rage"
1. The mnemonic helps recall common CYP450 inducers: Barbiturates, Carbamazepine,
Griseofulvin, Phenytoin, Sulfonylureas, St. John's Wort, Rifampin, Alcohol, Phenobarbital.
2. Inducers accelerate drug metabolism and can decrease therapeutic effects of co-administered
medications.
3. Recognizing these inducers is essential for preventing clinically significant drug interactions.
,6: Which of the following are CYP450 inducer drugs? (Select all that apply from the mnemonic)
A. Barbiturates, Carbamazepine, Rifampin
B. Phenytoin, Griseofulvin, St. John's Wort
C. Valproate, Isoniazid, Amiodarone
D. Ketoconazole, Grapefruit juice, Quinidine
Correct Answer: A, B. Barbiturates, Carbamazepine, Rifampin, Phenytoin, Griseofulvin, and St. John's
Wort are CYP450 inducers.
1. Inducer mnemonic: "Bullshit Crap GPS INDUCES rage" = Barbiturates, Carbamazepine,
Griseofulvin, Phenytoin, Sulfonylureas, St. John's Wort, Rifampin, Alcohol, Phenobarbital.
2. Carbamazepine induces its own metabolism and that of other drugs like warfarin, reducing
efficacy.
3. Valproate, isoniazid, amiodarone, ketoconazole, grapefruit juice, and quinidine are CYP450
inhibitors, not inducers.
7: How do CYP450 inhibitors affect drug metabolism?
A. They speed up metabolism, decreasing drug levels
B. They inhibit metabolism, increasing blood levels of medications
C. They have no effect on drug metabolism
D. They only affect topically applied medications
Correct Answer: B. They inhibit metabolism, increasing blood levels of medications
1. CYP450 inhibitors decrease the activity of metabolizing enzymes, leading to slower drug
clearance.
2. This results in higher serum drug levels and increased risk of toxicity and adverse effects.
3. Common inhibitors include valproate, amiodarone, ketoconazole, and grapefruit juice.
8: What is the mnemonic for remembering CYP450 inhibitor drug names?
A. "Bullshit Crap GPS INDUCES rage"
B. "VISA credit card debt INHIBITS spending on designers like CK to look GQ"
C. "Poor metabolism phenotype"
D. "Black box warning"
Correct Answer: B. "VISA credit card debt INHIBITS spending on designers like CK to look GQ"
1. The mnemonic helps recall common CYP450 inhibitors: Valproate, Isoniazid, Sulfonamides,
Amiodarone, Chloramphenicol, Ketoconazole, Grapefruit juice, Quinidine.
2. Inhibitors can cause drug accumulation and toxicity, especially for drugs with narrow
therapeutic indices.
3. Patients should be advised to avoid grapefruit juice while taking medications like statins or
calcium channel blockers.
, 9: Which of the following are CYP450 inhibitor drugs? (Select all that apply from the mnemonic)
A. Valproate, Isoniazid, Sulfonamides
B. Amiodarone, Chloramphenicol, Ketoconazole
C. Grapefruit juice, Quinidine
D. Carbamazepine, Rifampin, Phenytoin
Correct Answer: A, B, C. Valproate, Isoniazid, Sulfonamides, Amiodarone, Chloramphenicol,
Ketoconazole, Grapefruit juice, and Quinidine are CYP450 inhibitors.
1. Inhibitor mnemonic: "VISA credit card debt INHIBITS spending" = Valproate, Isoniazid,
Sulfonamides, Amiodarone, Chloramphenicol, Ketoconazole, Grapefruit juice, Quinidine.
2. Grapefruit juice inhibits CYP3A4 and can increase levels of statins, calcium channel blockers,
and immunosuppressants.
3. Carbamazepine, rifampin, and phenytoin are inducers, not inhibitors, and would have opposite
effects.
10: What physiological changes during pregnancy impact pharmacodynamics and pharmacokinetic
properties of drugs?
A. Decreased glomerular filtration rate leading to decreased drug excretion
B. Increased glomerular filtration rate leading to increased drug excretion, increased hepatic
metabolism, decreased tone and motility of bowel, and increased drug absorption
C. Decreased hepatic metabolism and increased bowel motility
D. No significant changes in drug handling during pregnancy
Correct Answer: B. Increased glomerular filtration rate leading to increased drug excretion, increased
hepatic metabolism, decreased tone and motility of bowel, and increased drug absorption
1. Pregnancy increases GFR by 50%, accelerating renal excretion of many drugs.
2. Hepatic metabolism increases due to induction of certain CYP450 enzymes.
3. Decreased GI motility and tone increase drug absorption, requiring careful dose adjustment.
11: Which of the following are examples of medications that can be teratogenic?
A. Acetaminophen and ibuprofen
B. Antiepileptic drugs, tetracyclines, fluoroquinolones, large doses of vitamin A, some anticoagulants,
and diethylstilbestrol (DES)
C. Penicillins and cephalosporins
D. Metformin and insulin
Correct Answer: B. Antiepileptic drugs, tetracyclines, fluoroquinolones, large doses of vitamin A,
some anticoagulants, and diethylstilbestrol (DES)
1. Teratogenic medications can cause fetal malformations, especially during the first trimester of
pregnancy.
2. Antiepileptic drugs (e.g., valproate, phenytoin), tetracyclines (tooth discoloration), and
isotretinoin (vitamin A derivative) are well-known teratogens.
3. Warfarin and DES have also been associated with congenital abnormalities when used during
pregnancy.
2026/2027 Update) | Q&A | Grade A | 100% Correct (Verified Answers)
Subject: Advanced Pharmacology – NR 565 Midterm
Source: Chamberlain University College of Nursing – Current Curriculum
Format: Q&A Guide with Rationale • Pharmacokinetics • Pharmacodynamics • Drug Interactions
1: During what trimester is a pregnant woman most at risk for adverse drug reactions with
potential long-term consequences?
A. 1st trimester
B. 2nd trimester
C. 3rd trimester
D. All trimesters equally
Correct Answer: A. 1st trimester
1. The first trimester is when the fetus is most at risk for adverse drug reactions due to rapid
organogenesis and growth of critical structures.
2. Teratogenic effects are most likely to occur during weeks 3-8 of gestation when major organs
are forming.
3. Long-term consequences from drug exposure during this period can include structural birth
defects and developmental abnormalities.
2: What is the BEERS criteria?
A. A list of medications that are safe for use in pregnancy
B. Recommendations of medications inappropriate for elderly (65 and older); the prescriber ultimately
decides
C. Guidelines for prescribing opioids for chronic pain
D. A list of medications that require black box warnings
Correct Answer: B. Recommendations of medications inappropriate for elderly (65 and older); the
prescriber ultimately decides
1. The BEERS criteria provide recommendations for medications that are potentially
inappropriate for older adults (age 65 and older).
2. These medications may pose higher risks of adverse effects or have safer alternatives available.
3. The prescriber ultimately decides whether to use these medications based on clinical judgment
and patient-specific factors.
,3: What is the CYP450 (cytochrome P450) system?
A. A hormone system that regulates blood pressure
B. A liver enzyme system where medications are metabolized, can be either inducers or inhibitors, and
create drug-drug interactions
C. A kidney filtration system that eliminates drugs
D. A brain neurotransmitter system affected by psychotropic drugs
Correct Answer: B. A liver enzyme system where medications are metabolized, can be either inducers
or inhibitors, and create drug-drug interactions
1. CYP450 is a family of liver enzymes responsible for metabolizing many medications.
2. These enzymes can be induced (increasing metabolism) or inhibited (decreasing metabolism),
leading to significant drug-drug interactions.
3. Understanding CYP450 interactions is critical for safe prescribing and preventing adverse
effects.
4: How do CYP450 inducers affect drug metabolism?
A. They slow down metabolism, increasing drug levels
B. They speed up metabolism of drugs (drug is cleared faster), causing decreased drug effect and
decreased blood levels, while elevating CYP450 enzymes
C. They have no effect on drug metabolism
D. They only affect medications metabolized by the kidneys
Correct Answer: B. They speed up metabolism of drugs (drug is cleared faster), causing decreased
drug effect and decreased blood levels, while elevating CYP450 enzymes
1. CYP450 inducers increase the activity of metabolizing enzymes, leading to faster drug
clearance.
2. This results in lower serum drug levels and potentially reduced therapeutic effects.
3. Common inducers include carbamazepine, rifampin, phenytoin, and St. John's Wort.
5: What is the mnemonic for remembering CYP450 inducer drug names?
A. "VISA credit card debt INHIBITS spending"
B. "Bullshit Crap GPS INDUCES rage"
C. "Poor metabolism phenotype"
D. "Black box warning"
Correct Answer: B. "Bullshit Crap GPS INDUCES rage"
1. The mnemonic helps recall common CYP450 inducers: Barbiturates, Carbamazepine,
Griseofulvin, Phenytoin, Sulfonylureas, St. John's Wort, Rifampin, Alcohol, Phenobarbital.
2. Inducers accelerate drug metabolism and can decrease therapeutic effects of co-administered
medications.
3. Recognizing these inducers is essential for preventing clinically significant drug interactions.
,6: Which of the following are CYP450 inducer drugs? (Select all that apply from the mnemonic)
A. Barbiturates, Carbamazepine, Rifampin
B. Phenytoin, Griseofulvin, St. John's Wort
C. Valproate, Isoniazid, Amiodarone
D. Ketoconazole, Grapefruit juice, Quinidine
Correct Answer: A, B. Barbiturates, Carbamazepine, Rifampin, Phenytoin, Griseofulvin, and St. John's
Wort are CYP450 inducers.
1. Inducer mnemonic: "Bullshit Crap GPS INDUCES rage" = Barbiturates, Carbamazepine,
Griseofulvin, Phenytoin, Sulfonylureas, St. John's Wort, Rifampin, Alcohol, Phenobarbital.
2. Carbamazepine induces its own metabolism and that of other drugs like warfarin, reducing
efficacy.
3. Valproate, isoniazid, amiodarone, ketoconazole, grapefruit juice, and quinidine are CYP450
inhibitors, not inducers.
7: How do CYP450 inhibitors affect drug metabolism?
A. They speed up metabolism, decreasing drug levels
B. They inhibit metabolism, increasing blood levels of medications
C. They have no effect on drug metabolism
D. They only affect topically applied medications
Correct Answer: B. They inhibit metabolism, increasing blood levels of medications
1. CYP450 inhibitors decrease the activity of metabolizing enzymes, leading to slower drug
clearance.
2. This results in higher serum drug levels and increased risk of toxicity and adverse effects.
3. Common inhibitors include valproate, amiodarone, ketoconazole, and grapefruit juice.
8: What is the mnemonic for remembering CYP450 inhibitor drug names?
A. "Bullshit Crap GPS INDUCES rage"
B. "VISA credit card debt INHIBITS spending on designers like CK to look GQ"
C. "Poor metabolism phenotype"
D. "Black box warning"
Correct Answer: B. "VISA credit card debt INHIBITS spending on designers like CK to look GQ"
1. The mnemonic helps recall common CYP450 inhibitors: Valproate, Isoniazid, Sulfonamides,
Amiodarone, Chloramphenicol, Ketoconazole, Grapefruit juice, Quinidine.
2. Inhibitors can cause drug accumulation and toxicity, especially for drugs with narrow
therapeutic indices.
3. Patients should be advised to avoid grapefruit juice while taking medications like statins or
calcium channel blockers.
, 9: Which of the following are CYP450 inhibitor drugs? (Select all that apply from the mnemonic)
A. Valproate, Isoniazid, Sulfonamides
B. Amiodarone, Chloramphenicol, Ketoconazole
C. Grapefruit juice, Quinidine
D. Carbamazepine, Rifampin, Phenytoin
Correct Answer: A, B, C. Valproate, Isoniazid, Sulfonamides, Amiodarone, Chloramphenicol,
Ketoconazole, Grapefruit juice, and Quinidine are CYP450 inhibitors.
1. Inhibitor mnemonic: "VISA credit card debt INHIBITS spending" = Valproate, Isoniazid,
Sulfonamides, Amiodarone, Chloramphenicol, Ketoconazole, Grapefruit juice, Quinidine.
2. Grapefruit juice inhibits CYP3A4 and can increase levels of statins, calcium channel blockers,
and immunosuppressants.
3. Carbamazepine, rifampin, and phenytoin are inducers, not inhibitors, and would have opposite
effects.
10: What physiological changes during pregnancy impact pharmacodynamics and pharmacokinetic
properties of drugs?
A. Decreased glomerular filtration rate leading to decreased drug excretion
B. Increased glomerular filtration rate leading to increased drug excretion, increased hepatic
metabolism, decreased tone and motility of bowel, and increased drug absorption
C. Decreased hepatic metabolism and increased bowel motility
D. No significant changes in drug handling during pregnancy
Correct Answer: B. Increased glomerular filtration rate leading to increased drug excretion, increased
hepatic metabolism, decreased tone and motility of bowel, and increased drug absorption
1. Pregnancy increases GFR by 50%, accelerating renal excretion of many drugs.
2. Hepatic metabolism increases due to induction of certain CYP450 enzymes.
3. Decreased GI motility and tone increase drug absorption, requiring careful dose adjustment.
11: Which of the following are examples of medications that can be teratogenic?
A. Acetaminophen and ibuprofen
B. Antiepileptic drugs, tetracyclines, fluoroquinolones, large doses of vitamin A, some anticoagulants,
and diethylstilbestrol (DES)
C. Penicillins and cephalosporins
D. Metformin and insulin
Correct Answer: B. Antiepileptic drugs, tetracyclines, fluoroquinolones, large doses of vitamin A,
some anticoagulants, and diethylstilbestrol (DES)
1. Teratogenic medications can cause fetal malformations, especially during the first trimester of
pregnancy.
2. Antiepileptic drugs (e.g., valproate, phenytoin), tetracyclines (tooth discoloration), and
isotretinoin (vitamin A derivative) are well-known teratogens.
3. Warfarin and DES have also been associated with congenital abnormalities when used during
pregnancy.
