ATI RN PHARMACOLOGY
ONLINE PRACTICE A - COMPREHENSIVE PRACTICE
2026/2027 EDITION
This is an independent practice exam for educational study; it is not an official ATI Testing assessment.
Section Overview
This comprehensive online practice exam contains 60 questions across seven sections, aligned with the ATI
Pharmacology testing blueprint, the current NCLEX-RN test plan, FDA guidelines, and evidence-based
pharmacological practice standards for 2026/2027.
Sec Topic Qs
1 Pharmacokinetics & Pharmacodynamics - ADME, Receptor Interactions 10
2 Medication Safety & Administration - Six Rights, Calculations 10
3 Cardiovascular & Hematologic Medications - Antihypertensives, Anticoagulants 10
4 Endocrine & Metabolic Medications - Insulins, Hypoglycemics, Thyroid 8
5 Anti-infectives - Antibiotics, Antivirals, Antifungals 8
6 CNS & Psychotropic Medications - Antidepressants, Antipsychotics, Opioids 7
7 GI, Respiratory, & Immune Medications - PPIs, Bronchodilators, Antihistamines 7
TOTAL 60
Instructions
For each question, select the single best answer. Use the answer key at the end of the exam to check your work. Each
item includes a brief rationale explaining the correct response.
Answer Key Distribution: 15 A · 15 B · 15 C · 15 D
, Section 1: Pharmacokinetics & Pharmacodynamics - Absorption, Distribution,
Metabolism, Excretion, and Receptor Interactions
Q1: The first-pass effect primarily reduces the bioavailability of orally administered drugs by:
A. Increasing drug absorption
B. Slowing renal excretion
C. Increasing receptor binding
D. Metabolizing the drug in the liver before it reaches systemic circulation [CORRECT]
Correct Answer: D
Rationale: The first-pass effect metabolizes oral drugs in the liver before systemic circulation. The other options are incorrect.
Q2: A drug that is highly protein-bound will have:
A. A higher free concentration
B. No active fraction
C. Increased potency always
D. A lower free (active) concentration [CORRECT]
Correct Answer: D
Rationale: High protein binding leaves a lower free (active) fraction. The other options are incorrect.
Q3: The CYP450 system is primarily located in the:
A. Liver [CORRECT]
B. Kidney
C. Lungs
D. Skin
Correct Answer: A
Rationale: CYP450 enzymes are mainly in the liver. The other options are incorrect.
Q4: The half-life of a drug is the time for its plasma concentration to:
A. Double
B. Decrease by 50% [CORRECT]
C. Reach its peak
D. Be fully eliminated
Correct Answer: B
Rationale: Half-life is the time for plasma concentration to decrease by 50%. The other options are incorrect.
Q5: A drug's 'potency' refers to:
A. The maximum effect achievable
B. The drug's half-life
C. The drug's route
D. The dose required to produce a given effect [CORRECT]
Correct Answer: D
Rationale: Potency is the dose needed to produce an effect. Efficacy is the maximum effect.
Q6: An antagonist at a receptor:
A. Blocks the receptor and prevents an agonist response [CORRECT]
B. Activates the receptor
C. Has a submaximal effect
D. Increases the response
Correct Answer: A
Rationale: An antagonist blocks receptor activation. The other options describe agonists.
Q7: Which is an example of a prodrug that requires activation?
A. Penicillin
ATI RN Pharmacology Online Practice A - 2026/2027 Page 2
ONLINE PRACTICE A - COMPREHENSIVE PRACTICE
2026/2027 EDITION
This is an independent practice exam for educational study; it is not an official ATI Testing assessment.
Section Overview
This comprehensive online practice exam contains 60 questions across seven sections, aligned with the ATI
Pharmacology testing blueprint, the current NCLEX-RN test plan, FDA guidelines, and evidence-based
pharmacological practice standards for 2026/2027.
Sec Topic Qs
1 Pharmacokinetics & Pharmacodynamics - ADME, Receptor Interactions 10
2 Medication Safety & Administration - Six Rights, Calculations 10
3 Cardiovascular & Hematologic Medications - Antihypertensives, Anticoagulants 10
4 Endocrine & Metabolic Medications - Insulins, Hypoglycemics, Thyroid 8
5 Anti-infectives - Antibiotics, Antivirals, Antifungals 8
6 CNS & Psychotropic Medications - Antidepressants, Antipsychotics, Opioids 7
7 GI, Respiratory, & Immune Medications - PPIs, Bronchodilators, Antihistamines 7
TOTAL 60
Instructions
For each question, select the single best answer. Use the answer key at the end of the exam to check your work. Each
item includes a brief rationale explaining the correct response.
Answer Key Distribution: 15 A · 15 B · 15 C · 15 D
, Section 1: Pharmacokinetics & Pharmacodynamics - Absorption, Distribution,
Metabolism, Excretion, and Receptor Interactions
Q1: The first-pass effect primarily reduces the bioavailability of orally administered drugs by:
A. Increasing drug absorption
B. Slowing renal excretion
C. Increasing receptor binding
D. Metabolizing the drug in the liver before it reaches systemic circulation [CORRECT]
Correct Answer: D
Rationale: The first-pass effect metabolizes oral drugs in the liver before systemic circulation. The other options are incorrect.
Q2: A drug that is highly protein-bound will have:
A. A higher free concentration
B. No active fraction
C. Increased potency always
D. A lower free (active) concentration [CORRECT]
Correct Answer: D
Rationale: High protein binding leaves a lower free (active) fraction. The other options are incorrect.
Q3: The CYP450 system is primarily located in the:
A. Liver [CORRECT]
B. Kidney
C. Lungs
D. Skin
Correct Answer: A
Rationale: CYP450 enzymes are mainly in the liver. The other options are incorrect.
Q4: The half-life of a drug is the time for its plasma concentration to:
A. Double
B. Decrease by 50% [CORRECT]
C. Reach its peak
D. Be fully eliminated
Correct Answer: B
Rationale: Half-life is the time for plasma concentration to decrease by 50%. The other options are incorrect.
Q5: A drug's 'potency' refers to:
A. The maximum effect achievable
B. The drug's half-life
C. The drug's route
D. The dose required to produce a given effect [CORRECT]
Correct Answer: D
Rationale: Potency is the dose needed to produce an effect. Efficacy is the maximum effect.
Q6: An antagonist at a receptor:
A. Blocks the receptor and prevents an agonist response [CORRECT]
B. Activates the receptor
C. Has a submaximal effect
D. Increases the response
Correct Answer: A
Rationale: An antagonist blocks receptor activation. The other options describe agonists.
Q7: Which is an example of a prodrug that requires activation?
A. Penicillin
ATI RN Pharmacology Online Practice A - 2026/2027 Page 2
