ADAP Pharmacology 2 — Questions and Answers
Question 1: Which drug schedule classification includes medications with the highest accepted medical use but moderate-to-low potential for dependence?
- Schedule I
- Schedule II
- Schedule III (Correct answer)
- Schedule V
Correct answer: Schedule III
Schedule III drugs have accepted medical use and moderate-to-low potential for physical and psychological dependence.
Question 2: Nitrous oxide used in dentistry produces its primary effect by acting as a:
- Local anesthetic
- Central nervous system depressant (Correct answer)
- Vasoconstrictor
- Antibiotic
Correct answer: Central nervous system depressant
Nitrous oxide is an inhalation sedative that depresses the CNS to produce analgesia and anxiolysis.
Question 3: A patient taking warfarin (Coumadin) is scheduled for extraction. Which concern is most important for the dental team?
- Increased infection risk
- Prolonged bleeding time (Correct answer)
- Elevated blood pressure
- Reduced anesthetic efficacy
Correct answer: Prolonged bleeding time
Warfarin is an anticoagulant that inhibits clotting factors, significantly prolonging bleeding time after invasive procedures.
Question 4: Which of the following is classified as a non-opioid analgesic commonly recommended for mild dental pain?
- Hydrocodone
- Codeine
- Ibuprofen (Correct answer)
- Morphine
Correct answer: Ibuprofen
Ibuprofen is an NSAID and non-opioid analgesic frequently used for mild-to-moderate dental pain and inflammation.
Question 5: What is the maximum recommended daily dose of acetaminophen for a healthy adult to avoid hepatotoxicity?
- 1,000 mg
- 2,000 mg
- 3,000 mg
- 4,000 mg (Correct answer)
Correct answer: 4,000 mg
The maximum daily dose of acetaminophen for a healthy adult is 4,000 mg, though 3,000 mg is often recommended to provide a safety margin.
Question 6: Epinephrine is added to local anesthetic solutions in dentistry primarily to:
- Increase the pH of the solution
- Prolong anesthetic duration and reduce systemic absorption (Correct answer)
- Treat allergic reactions
- Accelerate anesthetic onset
Correct answer: Prolong anesthetic duration and reduce systemic absorption
Epinephrine causes vasoconstriction, which slows absorption of the anesthetic into the bloodstream and prolongs its duration of action.
Question 7: Which antibiotic is the first-line choice for prophylaxis against infective endocarditis in dental patients with cardiac risk factors?
- Tetracycline
- Amoxicillin (Correct answer)
- Metronidazole
- Ciprofloxacin
Correct answer: Amoxicillin
Amoxicillin 2 g orally one hour before the procedure is the AHA-recommended first-line antibiotic prophylaxis for infective endocarditis.
ADAP Pharmacology 2
Which drug schedule classification includes medications with the highest accepted medical use but moderate-to-low potential for dependence?