PTCB PTCE Exam With Confidence Using Practice Dumps

]

A medication'sstabilityrefers tohow well it maintains potency, effectiveness, and safety over time. Several factors candegrade medications, includingoxygen, moisture, temperature, and light.

Oxygen exposurecan causeoxidation, leading to drug degradation and loss of potency.

Many medications, especiallyvitamins (e.g., vitamin C), biologics, and certain antibiotics, are susceptible to oxidative damage.

Medications requiring protection from oxygen are often packaged inair-tight containersorblister packs.

A. Allergies→ Incorrect; allergies affect thepatient, not the drug’sstability.

B. Equivalence→ Incorrect; equivalence refers tobioavailabilitybetween generic and brand-name drugs, not drug stability.

D. Indications→ Incorrect; indications refer toapproved uses of a drug, not factors affecting its stability.

Other Answer Choices Explained:References:

USP <797> and <795> Guidelines on Medication Stability

FDA Drug Stability and Shelf Life Guidelines

PTCB PTCE Exam Content Outline (Medication Storage & Stability)

The prescription forhydroxyzine (25 mg q6h) for hypertensionis likely alook-alike, sound-alike (LASA) medication error, ashydroxyzineis anantihistamineused foranxiety, nausea, and allergiesbutnot for hypertension.

A common LASA confusion is between:

Hydroxyzine (antihistamine, sedative effects, brand names: Vistaril, Atarax)

Hydralazine (antihypertensive, vasodilator, used for hypertension, brand: Apresoline)

Sincehydralazineis used forhypertension, the prescription likely contains anordering errorthat must be clarified with the prescriber.

A. Hydroxyzine requires special handling→ Incorrect; hydroxyzine does not require special handling.

B. The prescription exceeds the maximum recommended daily dose→ Incorrect; hydroxyzine's max daily dose is400 mg/day, and this prescription does not exceed it.

D. Hydroxyzine is subject to a REMS program→ Incorrect; hydroxyzineis not part of a Risk Evaluation and Mitigation Strategy (REMS) program.

Other Answer Choices Explained:References:

FDA & ISMP Look-Alike Sound-Alike (LASA) Drug List

PTCB PTCE Exam Content Outline (Medication Safety & Error Prevention)

Lexicomp Drug Monographs for Hydroxyzine & Hydralazine

Alot numberis a unique identifier assigned to a specific batch of a medication during manufacturing.

TheNational Drug Code (NDC)andserial numberare different from the lot number.

On medication stock bottles, the lot number is often preceded by"(10)", which is present in this case:

(10)ABC123→This represents the lot number.

B. 55555444422→ This appears to be aGTIN (Global Trade Item Number), which identifies the product but is not the lot number.

C. 051526→ This could represent a manufacturer’s internal code or part of the packaging details, but not the lot number.

D. 11262026→ This follows the(21) identifier, which represents theexpiration date (November 26, 2026).

PTCB PTCE Exam Content Outline – Medication Labeling and Lot Numbers

FDA Drug Supply Chain Security Act (DSCSA)– Provides guidance on tracking drug batches.

USP Chapter <1079> Good Storage and Distribution Practices– Covers stock bottle labeling and identification.

Why Other Answers Are Incorrect?Pharmacy Technician References: