EFDA EFDA Pharmacology & Pain Management 1

Question 1

Which local anesthetic is contraindicated in patients with a known allergy to para-aminobenzoic acid (PABA) derivatives?

Accepted Answer

Procaine

Answer

Procaine (Novocain) is an ester-type anesthetic metabolized into PABA, making it contraindicated in patients allergic to PABA.

Question 2

What is the purpose of a vasoconstrictor such as epinephrine in a local anesthetic solution?

Accepted Answer

Prolong anesthetic duration and reduce bleeding

Answer

Vasoconstrictors constrict local blood vessels, slowing absorption of the anesthetic into systemic circulation and prolonging its duration.

Question 3

Which drug classification includes ibuprofen and naproxen, commonly used for postoperative dental pain?

Accepted Answer

NSAIDs

Answer

Ibuprofen and naproxen are nonsteroidal anti-inflammatory drugs (NSAIDs) that reduce pain and inflammation by inhibiting prostaglandin synthesis.

Question 4

What is the maximum safe dose of acetaminophen per day for a healthy adult to avoid hepatotoxicity?

Accepted Answer

4,000 mg

Answer

The maximum recommended dose of acetaminophen for a healthy adult is 4,000 mg per day (4 grams) to prevent liver damage.

Question 5

Which route of drug administration has the fastest onset of action?

Accepted Answer

Intravenous

Answer

Intravenous administration delivers the drug directly into the bloodstream, producing the most rapid onset of action.

(EFDA) Expanded Function Dental Auxiliary Practice Test