Paramedic Pharmacology 2026 Study Guide
Practice Questions Answer Explanations
Medication Administration Dosage Calculations
Indications Contraindications Adverse Effects
Exam Preparation
Section 1: Pharmacology Foundations and Principles (1–15)
1. What is the study of how drugs move through the body, including
absorption, distribution, metabolism, and excretion?
A) Pharmacodynamics
B) Pharmacokinetics
C) Pharmacotherapeutics
D) Pharmacognosy
Answer: B) Pharmacokinetics
Rationale: Pharmacokinetics describes what the body does to a drug: absorption,
distribution, metabolism, and excretion (ADME).
2. What is the study of how drugs affect the body and their mechanisms of
action?
A) Pharmacokinetics
B) Pharmacodynamics
C) Pharmacognosy
D) Pharmaceutics
Answer: B) Pharmacodynamics
Rationale: Pharmacodynamics describes what the drug does to the body, including
receptor interactions and therapeutic effects.
3. Which route of administration has the fastest onset of action?
,A) Oral
B) Subcutaneous
C) Intravenous
D) Intramuscular
Answer: C) Intravenous
Rationale: IV administration bypasses absorption, delivering the drug directly into
the bloodstream for immediate effect.
4. What is the first-pass effect?
A) Metabolism of a drug by the liver before it reaches systemic circulation
B) The first dose of a medication
C) The initial side effect of a drug
D) The first-pass metabolism in the lungs
Answer: A) Metabolism of a drug by the liver before it reaches systemic
circulation
Rationale: Orally administered drugs pass through the portal circulation and liver,
where they may be metabolized before reaching target tissues.
5. What is the therapeutic index?
A) The ratio of toxic dose to therapeutic dose
B) The desired effect of a drug
C) The time to peak effect
D) The duration of action
Answer: A) The ratio of toxic dose to therapeutic dose
Rationale: A narrow therapeutic index means small changes in dose can cause
toxicity.
6. What is the term for a drug that binds to a receptor and produces a
response?
,A) Antagonist
B) Agonist
C) Partial agonist
D) Inverse agonist
Answer: B) Agonist
Rationale: An agonist binds to a receptor and activates it, producing a
physiological response.
7. What is the term for a drug that binds to a receptor but does not activate
it?
A) Agonist
B) Antagonist
C) Partial agonist
D) Inverse agonist
Answer: B) Antagonist
Rationale: An antagonist blocks the receptor, preventing agonists from binding
and producing a response.
8. What is the term for the time it takes for a drug to reach half its steady-
state concentration?
A) Half-life
B) Onset
C) Duration
D) Peak
Answer: A) Half-life
Rationale: Half-life determines dosing intervals and the time to reach steady state.
9. What is the loading dose?
A) A larger initial dose to rapidly achieve therapeutic levels
B) The maintenance dose
, C) The first dose of a drug
D) The last dose of a drug
Answer: A) A larger initial dose to rapidly achieve therapeutic levels
Rationale: A loading dose quickly achieves therapeutic drug concentrations,
followed by maintenance dosing.
10. What is the maintenance dose?
A) The dose required to maintain therapeutic levels
B) The initial dose
C) The toxic dose
D) The loading dose
Answer: A) The dose required to maintain therapeutic levels
Rationale: Maintenance dosing replaces drug eliminated by metabolism and
excretion to keep levels steady.
11. What is bioavailability?
A) The fraction of a drug that reaches systemic circulation
B) The speed of drug absorption
C) The duration of action
D) The toxic dose
Answer: A) The fraction of a drug that reaches systemic circulation
Rationale: Bioavailability is 100% for IV drugs but lower for oral and other routes
due to incomplete absorption and first-pass metabolism.
12. What is a contraindication?
A) A condition that makes a drug harmful or inappropriate
B) A desired effect
C) A side effect
D) A dosing schedule
Answer: A) A condition that makes a drug harmful or inappropriate
Practice Questions Answer Explanations
Medication Administration Dosage Calculations
Indications Contraindications Adverse Effects
Exam Preparation
Section 1: Pharmacology Foundations and Principles (1–15)
1. What is the study of how drugs move through the body, including
absorption, distribution, metabolism, and excretion?
A) Pharmacodynamics
B) Pharmacokinetics
C) Pharmacotherapeutics
D) Pharmacognosy
Answer: B) Pharmacokinetics
Rationale: Pharmacokinetics describes what the body does to a drug: absorption,
distribution, metabolism, and excretion (ADME).
2. What is the study of how drugs affect the body and their mechanisms of
action?
A) Pharmacokinetics
B) Pharmacodynamics
C) Pharmacognosy
D) Pharmaceutics
Answer: B) Pharmacodynamics
Rationale: Pharmacodynamics describes what the drug does to the body, including
receptor interactions and therapeutic effects.
3. Which route of administration has the fastest onset of action?
,A) Oral
B) Subcutaneous
C) Intravenous
D) Intramuscular
Answer: C) Intravenous
Rationale: IV administration bypasses absorption, delivering the drug directly into
the bloodstream for immediate effect.
4. What is the first-pass effect?
A) Metabolism of a drug by the liver before it reaches systemic circulation
B) The first dose of a medication
C) The initial side effect of a drug
D) The first-pass metabolism in the lungs
Answer: A) Metabolism of a drug by the liver before it reaches systemic
circulation
Rationale: Orally administered drugs pass through the portal circulation and liver,
where they may be metabolized before reaching target tissues.
5. What is the therapeutic index?
A) The ratio of toxic dose to therapeutic dose
B) The desired effect of a drug
C) The time to peak effect
D) The duration of action
Answer: A) The ratio of toxic dose to therapeutic dose
Rationale: A narrow therapeutic index means small changes in dose can cause
toxicity.
6. What is the term for a drug that binds to a receptor and produces a
response?
,A) Antagonist
B) Agonist
C) Partial agonist
D) Inverse agonist
Answer: B) Agonist
Rationale: An agonist binds to a receptor and activates it, producing a
physiological response.
7. What is the term for a drug that binds to a receptor but does not activate
it?
A) Agonist
B) Antagonist
C) Partial agonist
D) Inverse agonist
Answer: B) Antagonist
Rationale: An antagonist blocks the receptor, preventing agonists from binding
and producing a response.
8. What is the term for the time it takes for a drug to reach half its steady-
state concentration?
A) Half-life
B) Onset
C) Duration
D) Peak
Answer: A) Half-life
Rationale: Half-life determines dosing intervals and the time to reach steady state.
9. What is the loading dose?
A) A larger initial dose to rapidly achieve therapeutic levels
B) The maintenance dose
, C) The first dose of a drug
D) The last dose of a drug
Answer: A) A larger initial dose to rapidly achieve therapeutic levels
Rationale: A loading dose quickly achieves therapeutic drug concentrations,
followed by maintenance dosing.
10. What is the maintenance dose?
A) The dose required to maintain therapeutic levels
B) The initial dose
C) The toxic dose
D) The loading dose
Answer: A) The dose required to maintain therapeutic levels
Rationale: Maintenance dosing replaces drug eliminated by metabolism and
excretion to keep levels steady.
11. What is bioavailability?
A) The fraction of a drug that reaches systemic circulation
B) The speed of drug absorption
C) The duration of action
D) The toxic dose
Answer: A) The fraction of a drug that reaches systemic circulation
Rationale: Bioavailability is 100% for IV drugs but lower for oral and other routes
due to incomplete absorption and first-pass metabolism.
12. What is a contraindication?
A) A condition that makes a drug harmful or inappropriate
B) A desired effect
C) A side effect
D) A dosing schedule
Answer: A) A condition that makes a drug harmful or inappropriate
