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NR565 / NR 565 Advanced Pharmacology
Care of the Fundamentals Midterm
Exam | Chamberlain University
(2026/2027) | Verified Questions &
Answers with Rationales
Exam Structure:
Subject: Advanced Pharmacology (NR565) – Midterm Exam
Source: NR565 / NR 565 Advanced Pharmacology Care of the Fundamentals –
Midterm Exam (Chamberlain)
Format: Multiple Choice & Open-Ended Q&A
1. A patient’s nutritional intake and laboratory results reflect
hypoalbuminemia. This is critical to prescribing because:
Correct Answer: Distribution of drugs to target tissue may be affected.
Rationale:
1. Albumin is the primary plasma protein for drug binding.
2. Hypoalbuminemia increases the free (active) fraction of highly protein-
bound drugs.
3. This can lead to toxicity at standard doses.
4. Examples: warfarin, phenytoin, diazepam.
2. Drugs that have a significant first-pass effect:
Correct Answer: Are rapidly metabolized by the liver and may have little if
any desired action.
Rationale:
1. First-pass effect refers to metabolism of a drug before it reaches
systemic circulation.
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2. Occurs primarily in the liver after oral administration.
3. High first-pass metabolism reduces bioavailability.
4. Examples: propranolol, morphine, nitroglycerin (given sublingually to
bypass first-pass).
3. The route of excretion of a volatile drug will likely be the:
Correct Answer: Lungs.
Rationale:
1. Volatile drugs (gases, vapors) are excreted via exhalation.
2. Examples: alcohol, volatile anesthetics (sevoflurane, isoflurane).
3. Excretion via lungs is rapid and dependent on respiratory rate.
4. Renal and hepatic routes are for non-volatile drugs.
4. Medroxyprogesterone (Depo Provera) is prescribed
intramuscularly (IM) to create a storage reservoir of the drug. Storage
reservoirs:
Correct Answer: Increase the length of time a drug is available and active.
Rationale:
1. IM depot injections slowly release drug from the injection site.
2. Prolongs duration of action and reduces dosing frequency.
3. Examples: Depo Provera (3 months), haloperidol decanoate (4 weeks).
4. Also occurs with fat-soluble drugs stored in adipose tissue.
5. The NP chooses to give cephalexin every 8 hours based on
knowledge of the drug’s:
Correct Answer: Biological half-life.
Rationale:
1. Half-life (t½) determines dosing interval.
2. Drugs with short half-lives require more frequent dosing.
3. Dosing interval is typically 1-2 half-lives.
4. Cephalexin t½ ~1 hour → dosed every 6-8 hours.
6. Azithromycin dosing requires that the first day’s dosage be twice
those of the other 4 days. This is considered a loading dose. A loading
dose:
Correct Answer: Rapidly achieves drug levels in the therapeutic range.
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Rationale:
1. Loading dose shortens the time to reach steady state.
2. Used for drugs with long half-lives.
3. Followed by maintenance doses to keep levels in therapeutic range.
4. Example: digoxin, amiodarone, azithromycin.
7. The point in time on the drug concentration curve that indicates the
first sign of a therapeutic effect is the:
Correct Answer: Onset of action.
Rationale:
1. Onset of action is the time from administration to first observable effect.
2. Peak effect is the maximum response.
3. Duration of action is how long the effect lasts.
4. Latency period is the delay before onset.
8. Phenytoin requires that a trough level be drawn. Peak and trough
levels are done:
Correct Answer: To determine if a drug is in the therapeutic range.
Rationale:
1. Trough level is the lowest concentration (just before next dose).
2. Peak level is the highest concentration (after administration).
3. Used to guide dosing for narrow therapeutic index drugs.
4. Ensures efficacy without toxicity.
9. A laboratory result indicates that the peak level for a drug is above
the minimum toxic concentration. This means that the:
Correct Answer: Concentration will produce an adverse response.
Rationale:
1. Minimum toxic concentration (MTC) is the level at which toxicity begins.
2. Peak levels above MTC increase risk of adverse effects.
3. Therapeutic range is between minimum effective concentration (MEC) and
MTC.
4. Doses should be adjusted to keep peak below MTC.
10. Drugs that are receptor agonists may demonstrate what property?
Correct Answer: Desensitization or downregulation with continuous use.
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Rationale:
1. Agonists activate receptors.
2. Continuous activation can lead to receptor desensitization (reduced
response).
3. Downregulation reduces the number of receptors.
4. Example: beta-agonists in asthma (tolerance develops).
11. Drugs that are receptor antagonists, such as beta blockers, may
cause:
Correct Answer: An exaggerated response if abruptly discontinued.
Rationale:
1. Chronic antagonist use can cause receptor upregulation (supersensitivity).
2. Abrupt withdrawal leads to exaggerated response to endogenous agonists.
3. Example: beta-blocker withdrawal → rebound tachycardia, hypertension,
myocardial ischemia.
4. Tapering over 1-2 weeks prevents rebound effects.
12. Factors that affect gastric drug absorption include:
Correct Answer: Lipid solubility of the drug.
Rationale:
1. Lipid-soluble drugs cross cell membranes more easily.
2. Other factors: pH, gastric emptying time, food, drug formulation.
3. Ionized drugs (charged) are poorly absorbed.
4. Non-ionized (lipid-soluble) forms are absorbed faster.
13. Drugs administered via IV:
Correct Answer: Begin distribution into the body immediately.
Rationale:
1. IV administration bypasses absorption phase.
2. Drug enters systemic circulation directly.
3. Onset is immediate.
4. Bioavailability is 100%.
14. When a medication is added to a regimen for a synergistic effect,
the combined effect of the drugs is:
Correct Answer: Greater than the sum of the effects of each drug
individually.
NR565 / NR 565 Advanced Pharmacology
Care of the Fundamentals Midterm
Exam | Chamberlain University
(2026/2027) | Verified Questions &
Answers with Rationales
Exam Structure:
Subject: Advanced Pharmacology (NR565) – Midterm Exam
Source: NR565 / NR 565 Advanced Pharmacology Care of the Fundamentals –
Midterm Exam (Chamberlain)
Format: Multiple Choice & Open-Ended Q&A
1. A patient’s nutritional intake and laboratory results reflect
hypoalbuminemia. This is critical to prescribing because:
Correct Answer: Distribution of drugs to target tissue may be affected.
Rationale:
1. Albumin is the primary plasma protein for drug binding.
2. Hypoalbuminemia increases the free (active) fraction of highly protein-
bound drugs.
3. This can lead to toxicity at standard doses.
4. Examples: warfarin, phenytoin, diazepam.
2. Drugs that have a significant first-pass effect:
Correct Answer: Are rapidly metabolized by the liver and may have little if
any desired action.
Rationale:
1. First-pass effect refers to metabolism of a drug before it reaches
systemic circulation.
, 2|Page
2. Occurs primarily in the liver after oral administration.
3. High first-pass metabolism reduces bioavailability.
4. Examples: propranolol, morphine, nitroglycerin (given sublingually to
bypass first-pass).
3. The route of excretion of a volatile drug will likely be the:
Correct Answer: Lungs.
Rationale:
1. Volatile drugs (gases, vapors) are excreted via exhalation.
2. Examples: alcohol, volatile anesthetics (sevoflurane, isoflurane).
3. Excretion via lungs is rapid and dependent on respiratory rate.
4. Renal and hepatic routes are for non-volatile drugs.
4. Medroxyprogesterone (Depo Provera) is prescribed
intramuscularly (IM) to create a storage reservoir of the drug. Storage
reservoirs:
Correct Answer: Increase the length of time a drug is available and active.
Rationale:
1. IM depot injections slowly release drug from the injection site.
2. Prolongs duration of action and reduces dosing frequency.
3. Examples: Depo Provera (3 months), haloperidol decanoate (4 weeks).
4. Also occurs with fat-soluble drugs stored in adipose tissue.
5. The NP chooses to give cephalexin every 8 hours based on
knowledge of the drug’s:
Correct Answer: Biological half-life.
Rationale:
1. Half-life (t½) determines dosing interval.
2. Drugs with short half-lives require more frequent dosing.
3. Dosing interval is typically 1-2 half-lives.
4. Cephalexin t½ ~1 hour → dosed every 6-8 hours.
6. Azithromycin dosing requires that the first day’s dosage be twice
those of the other 4 days. This is considered a loading dose. A loading
dose:
Correct Answer: Rapidly achieves drug levels in the therapeutic range.
, 3|Page
Rationale:
1. Loading dose shortens the time to reach steady state.
2. Used for drugs with long half-lives.
3. Followed by maintenance doses to keep levels in therapeutic range.
4. Example: digoxin, amiodarone, azithromycin.
7. The point in time on the drug concentration curve that indicates the
first sign of a therapeutic effect is the:
Correct Answer: Onset of action.
Rationale:
1. Onset of action is the time from administration to first observable effect.
2. Peak effect is the maximum response.
3. Duration of action is how long the effect lasts.
4. Latency period is the delay before onset.
8. Phenytoin requires that a trough level be drawn. Peak and trough
levels are done:
Correct Answer: To determine if a drug is in the therapeutic range.
Rationale:
1. Trough level is the lowest concentration (just before next dose).
2. Peak level is the highest concentration (after administration).
3. Used to guide dosing for narrow therapeutic index drugs.
4. Ensures efficacy without toxicity.
9. A laboratory result indicates that the peak level for a drug is above
the minimum toxic concentration. This means that the:
Correct Answer: Concentration will produce an adverse response.
Rationale:
1. Minimum toxic concentration (MTC) is the level at which toxicity begins.
2. Peak levels above MTC increase risk of adverse effects.
3. Therapeutic range is between minimum effective concentration (MEC) and
MTC.
4. Doses should be adjusted to keep peak below MTC.
10. Drugs that are receptor agonists may demonstrate what property?
Correct Answer: Desensitization or downregulation with continuous use.
, 4|Page
Rationale:
1. Agonists activate receptors.
2. Continuous activation can lead to receptor desensitization (reduced
response).
3. Downregulation reduces the number of receptors.
4. Example: beta-agonists in asthma (tolerance develops).
11. Drugs that are receptor antagonists, such as beta blockers, may
cause:
Correct Answer: An exaggerated response if abruptly discontinued.
Rationale:
1. Chronic antagonist use can cause receptor upregulation (supersensitivity).
2. Abrupt withdrawal leads to exaggerated response to endogenous agonists.
3. Example: beta-blocker withdrawal → rebound tachycardia, hypertension,
myocardial ischemia.
4. Tapering over 1-2 weeks prevents rebound effects.
12. Factors that affect gastric drug absorption include:
Correct Answer: Lipid solubility of the drug.
Rationale:
1. Lipid-soluble drugs cross cell membranes more easily.
2. Other factors: pH, gastric emptying time, food, drug formulation.
3. Ionized drugs (charged) are poorly absorbed.
4. Non-ionized (lipid-soluble) forms are absorbed faster.
13. Drugs administered via IV:
Correct Answer: Begin distribution into the body immediately.
Rationale:
1. IV administration bypasses absorption phase.
2. Drug enters systemic circulation directly.
3. Onset is immediate.
4. Bioavailability is 100%.
14. When a medication is added to a regimen for a synergistic effect,
the combined effect of the drugs is:
Correct Answer: Greater than the sum of the effects of each drug
individually.
