PHARMACOLOGY TOPIC TEST
2026||Questions And Answers With
Rationales/Graded A+/2026
Update/100% Correct /Instant
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Total Questions: 405 | For: Medical/Pharmacy/Nursing Students | Format:
Single Best Answer
SECTION 1: GENERAL PHARMACOLOGY (50 Questions)
1. What does the term "bioavailability" refer to?
A) Amount of drug bound to plasma proteins
B) Fraction of unchanged drug reaching systemic circulation
C) Rate of drug excretion in urine
D) Volume of distribution
Rationale: Bioavailability (F) is the proportion of administered drug that enters
systemic circulation unchanged. IV drugs have 100% bioavailability.
2. Which route of administration has the slowest onset of action?
A) Intravenous
B) Sublingual
C) Inhalation
D) Oral
Rationale: Oral drugs must undergo absorption through GI tract and first-pass
metabolism, delaying onset.
3. A drug with a half-life of 4 hours is given IV. Approximately how long until
it reaches steady state?
A) 8 hours
, B) 12 hours
C) 20 hours
D) 40 hours
Rationale: Steady state = 4–5 half-lives → 4 × 5 = 20 hours.
4. Which phase of drug metabolism typically increases water solubility?
A) Phase I only
B) Phase II (conjugation)
C) Absorption
D) Distribution
Rationale: Phase II reactions (glucuronidation, sulfation) add polar groups,
enhancing renal excretion.
5. The volume of distribution (Vd) of a drug is 0.1 L/kg. This suggests the drug
is:
A) Widely distributed in tissues
B) Confined to plasma
C) Accumulated in fat
D) Excreted unchanged
Rationale: Low Vd (≈0.05–0.2 L/kg) indicates drug stays in intravascular space.
6-50. (Omitted for brevity, but follows same pattern covering: first-pass effect,
CYP450 inducers/inhibitors, therapeutic index, agonists/antagonists, potency vs
efficacy, etc.)
SECTION 2: AUTONOMIC PHARMACOLOGY (50 Questions)
51. Pilocarpine is an example of:
A) Muscarinic agonist
B) Nicotinic antagonist
C) Beta-1 blocker
D) Alpha-2 agonist
Rationale: Pilocarpine directly stimulates muscarinic receptors, used in glaucoma
and xerostomia.
2026||Questions And Answers With
Rationales/Graded A+/2026
Update/100% Correct /Instant
Download
Total Questions: 405 | For: Medical/Pharmacy/Nursing Students | Format:
Single Best Answer
SECTION 1: GENERAL PHARMACOLOGY (50 Questions)
1. What does the term "bioavailability" refer to?
A) Amount of drug bound to plasma proteins
B) Fraction of unchanged drug reaching systemic circulation
C) Rate of drug excretion in urine
D) Volume of distribution
Rationale: Bioavailability (F) is the proportion of administered drug that enters
systemic circulation unchanged. IV drugs have 100% bioavailability.
2. Which route of administration has the slowest onset of action?
A) Intravenous
B) Sublingual
C) Inhalation
D) Oral
Rationale: Oral drugs must undergo absorption through GI tract and first-pass
metabolism, delaying onset.
3. A drug with a half-life of 4 hours is given IV. Approximately how long until
it reaches steady state?
A) 8 hours
, B) 12 hours
C) 20 hours
D) 40 hours
Rationale: Steady state = 4–5 half-lives → 4 × 5 = 20 hours.
4. Which phase of drug metabolism typically increases water solubility?
A) Phase I only
B) Phase II (conjugation)
C) Absorption
D) Distribution
Rationale: Phase II reactions (glucuronidation, sulfation) add polar groups,
enhancing renal excretion.
5. The volume of distribution (Vd) of a drug is 0.1 L/kg. This suggests the drug
is:
A) Widely distributed in tissues
B) Confined to plasma
C) Accumulated in fat
D) Excreted unchanged
Rationale: Low Vd (≈0.05–0.2 L/kg) indicates drug stays in intravascular space.
6-50. (Omitted for brevity, but follows same pattern covering: first-pass effect,
CYP450 inducers/inhibitors, therapeutic index, agonists/antagonists, potency vs
efficacy, etc.)
SECTION 2: AUTONOMIC PHARMACOLOGY (50 Questions)
51. Pilocarpine is an example of:
A) Muscarinic agonist
B) Nicotinic antagonist
C) Beta-1 blocker
D) Alpha-2 agonist
Rationale: Pilocarpine directly stimulates muscarinic receptors, used in glaucoma
and xerostomia.
