CDC Pharmacology & Drug Administration 2 — Questions and Answers
Question 1: Which analgesic is most commonly recommended for mild-to-moderate post-dental procedure pain due to its anti-inflammatory properties?
- Ibuprofen (Correct answer)
- Codeine
- Morphine
- Diazepam
Correct answer: Ibuprofen
Ibuprofen, an NSAID, is the first-line analgesic for mild-to-moderate dental pain because it reduces both pain and inflammation.
Question 2: A patient undergoing dental ceramist work discloses use of warfarin. What is the primary concern related to drug interactions?
- Increased bleeding risk (Correct answer)
- Elevated blood pressure
- Reduced anesthetic efficacy
- Hypoglycemia
Correct answer: Increased bleeding risk
Warfarin is an anticoagulant; interactions with NSAIDs or certain antibiotics can significantly increase bleeding risk.
Question 3: Which local anesthetic is CONTRAINDICATED in patients with a known allergy to para-aminobenzoic acid (PABA)?
- Procaine (ester type) (Correct answer)
- Lidocaine (amide type)
- Mepivacaine (amide type)
- Bupivacaine (amide type)
Correct answer: Procaine (ester type)
Ester-type local anesthetics like procaine are metabolized to PABA and are contraindicated in patients allergic to PABA.
Question 4: What is the maximum recommended dose of epinephrine in a local anesthetic solution for a healthy adult dental patient?
- 0.2 mg per appointment (Correct answer)
- 2.0 mg per appointment
- 0.02 mg per appointment
- 20 mg per appointment
Correct answer: 0.2 mg per appointment
The maximum dose of epinephrine for a healthy adult is 0.2 mg per dental appointment to avoid cardiovascular adverse effects.
Question 5: Which drug class is used prophylactically to prevent infective endocarditis in at-risk patients prior to certain dental procedures?
- Antibiotics (Correct answer)
- Antivirals
- Corticosteroids
- Antihistamines
Correct answer: Antibiotics
Amoxicillin (an antibiotic) is the standard prophylaxis recommended by the AHA for at-risk patients before invasive dental procedures.
Question 6: Nitrous oxide is classified as which type of agent used in dental settings?
- Inhalation sedative/anxiolytic (Correct answer)
- Opioid analgesic
- Benzodiazepine sedative
- Local anesthetic
Correct answer: Inhalation sedative/anxiolytic
Nitrous oxide is an inhaled sedative and anxiolytic agent providing conscious sedation and mild analgesia in dentistry.
Question 7: Which medication used in dentistry acts by blocking voltage-gated sodium channels to prevent nerve impulse transmission?
- Local anesthetics (Correct answer)
- Benzodiazepines
- Opioids
- Corticosteroids
Correct answer: Local anesthetics
Local anesthetics such as lidocaine block voltage-gated sodium channels, preventing depolarization and nerve impulse conduction.
CDC Pharmacology & Drug Administration 2
Which analgesic is most commonly recommended for mild-to-moderate post-dental procedure pain due to its anti-inflammatory properties?