Free PTCB PTCE Exam Dumps May 2026

Levigating agentsreduce theparticle sizeof powders to make themeasier to mix into an ointment base.

Common levigating agents includemineral oil, glycerin, and propylene glycol.

Why Other Options Are Incorrect:

A . Emulsifying agents?Help mix oil and water but do NOT help incorporate solids into ointments.

B . Diluents?Used toincrease bulk volume(e.g., lactose in tablets).

D . Preservatives?Prevent microbial growth, but do NOT help mix solids into ointments.

Reference:USP <795> Nonsterile Compounding Guidelines.

Vaccines come in different strengths for adults and children, and mix-ups can lead to underdosing or overdosing.

Storing pediatric and adult vaccines separately within the refrigerator reduces the risk of errors.

Example:PediatricCOVID-19 vaccines (lower dose) and adult doses look similar but have different concentrations.

Why Other Options Are Incorrect:

A . Repackaging?Against CDC and USP <797> guidelines, which require vaccines to remain in their original packaging.

B . Ordering from different manufacturers?Not practical; most pharmacies use a single supplier for consistency.

D . Automated dispensing systems?Not always available for vaccines.

Reference:CDC Vaccine Storage & Handling Guidelines, ISMP Vaccine Safety Best Practices.

Comprehensive and Detailed Step-by-Step Explanation:

Alot number (or batch number)is aunique identifierassigned to a specific batch of medication by themanufacturer. It helps trackrecalls, expiration dates, and quality control.

Explanation of Answer Choices:D. ManufacturerCorrect.Manufacturers assignlot numbersfor tracking and recall purposes.A. FDA Incorrect. TheFDA does not assign lot numbersbut regulatesdrug safety and labeling.B. DEA Incorrect. TheDEA controls controlled substancesbut does not issuelot numbers.C. Wholesaler Incorrect.Wholesalers distribute drugs but do not assign lot numbers.

Reference:

FDA Drug Product Recall Guidelines

PTCB Inventory Management Section