Free South Carolina PTCB Practice Test Online

Correct answer: A. National Drug Code

Correct: NDC stands for National Drug Code, the unique numeric identifier assigned to each drug product, used for order entry, billing, and inventory identification.

• B: "National Dosage Chart" is not a real regulatory term; NDC does not refer to dosing information.
• C: "Nurse Dispensing Certificate" is unrelated; NDC is a product identifier, not a credential.
• D: "New Drug Compound" is not what NDC stands for; NDC identifies an already-marketed product's specific package/manufacturer, not its novelty status.

Correct answer: B. HMG-CoA reductase inhibitors (cholesterol-lowering agents)

Correct: the "-statin" suffix identifies HMG-CoA reductase inhibitors, a class of cholesterol-lowering medications, a common drug-class-by-suffix pattern tested on the PTCE.

• A: The "-statin" suffix does not denote antibiotics; antibiotic classes have their own distinct naming conventions (e.g., '-cillin,' '-floxacin').
• C: Antihistamines commonly end in suffixes like '-adine' or '-amine,' not '-statin.'
• D: Proton pump inhibitors commonly end in '-prazole' (e.g., omeprazole), not '-statin.'

Correct answer: B. Type 2 diabetes mellitus

Correct: metformin is a biguanide and the first-line oral medication for type 2 diabetes mellitus, reducing hepatic glucose production and improving insulin sensitivity.

• A: Metformin is not a first-line antihypertensive; drugs like lisinopril or amlodipine are used for hypertension.
• C: Hypothyroidism is treated with thyroid hormone replacement such as levothyroxine, not metformin.
• D: Seasonal allergies are treated with antihistamines or nasal steroids, not metformin.

Correct answer: A. Beta-blocker

Correct: metoprolol tartrate is a beta-1 selective adrenergic blocker used for hypertension, angina, and heart failure management, a core drug-class fact tested under the Medications domain.

• B: ACE inhibitors are drugs like lisinopril or enalapril, ending in '-pril,' not metoprolol.
• C: Calcium channel blockers are drugs like amlodipine or diltiazem, not beta-blockers like metoprolol.
• D: Loop diuretics are drugs like furosemide, an entirely different mechanism from a beta-blocker.

Correct answer: B. Atorvastatin

Correct: atorvastatin is the generic name for Lipitor, a commonly tested brand/generic pairing within the statin (HMG-CoA reductase inhibitor) drug class.

• A: Simvastatin is the generic for Zocor, not Lipitor.
• C: Rosuvastatin is the generic for Crestor, not Lipitor.
• D: Pravastatin is the generic for Pravachol, not Lipitor.