Pass the PTCB CPhT PTCE Questions and answers with ExamsMirror

In prescription terminology,"troche" refers to a dosage form, specifically alozengethat dissolves slowly in the mouth to release medication.

Atroche (or lozenge)is asolid, flavoredmedication thatdissolves in the mouthover time, allowing for gradual drug absorption.

Used for:

Local effects(e.g., sore throat relief with benzocaine troches)

Systemic effects(e.g., hormone replacement therapy troches)

A. Time❌→ Incorrect

"Troche" doesnotindicate when to take the medication.

C. Rate❌→ Incorrect

"Troche" doesnotindicate how fast the drug is absorbed.

D. Route❌→ Incorrect

"Troche"describes the dosage form, whilerouterefers to how a drug is administered (e.g., oral, IV).

USP-NF (United States Pharmacopeia–National Formulary)– Defines dosage forms, including lozenges/troches.

PTCB PTCE Exam Content Outline– Covers pharmaceutical dosage forms and prescription terminology.

ISMP Medication Safety Guidelines– Includes troches in standard medication formulations.

Definition of Troche:Why Not the Other Options?Key References:

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:

Butorphanolis aSchedule IV controlled substanceunder theControlled Substances Act (CSA). It is anopioid analgesicused formoderate-to-severe painandmigraine relief. Due to itsabuse potential, it is classified as acontrolled substanceand requires special handling in pharmacies.

A. Metoprolol→ Incorrect; metoprolol is abeta-blockerforhypertension and heart diseaseand isnot a controlled substance.

C. Carvedilol→ Incorrect; carvedilol is also abeta-blockerforheart failure and hypertension, not a controlled drug.

D. Propranolol→ Incorrect; propranolol is abeta-blockerused forhypertension, migraines, and anxiety, but it isnot a controlled substance.

Other Answer Choices Explained:References:

DEA Controlled Substances List (Schedule IV – Butorphanol)

PTCB PTCE Exam Content Outline (Pharmacy Laws & Regulations – Controlled Substances)

Federal Controlled Substances Act (CSA)

Tetracyclines, includingdoxycycline and minocycline, are broad-spectrum antibiotics used to treat bacterial infections. They have amajor drug-drug interaction with calcium-containing antacidsand other minerals.

Chelation Effect:Calcium binds to tetracycline, forminginsoluble complexesthat prevent the antibiotic from being absorbed in thegastrointestinal (GI) tract.

Reduced Efficacy:Because the drug cannot be absorbed, the antibiotic’s effectiveness is significantly reduced.

Similar Interactions:Magnesium, iron, and aluminum (found in many antacids, dairy products, and multivitamins) also reduce tetracycline absorption.

Take on an Empty Stomach(1 hour before or 2 hours after meals).

Avoid Dairy, Antacids, and Multivitaminsfor at least2 hours before and aftertaking tetracycline.

Drink with a Full Glass of Waterto prevent esophageal irritation.

B. Decongestants that contain pseudoephedrine.→ Incorrect. Pseudoephedrine does not interact with tetracycline.

C. Antitussives that contain dextromethorphan.→ Incorrect. Dextromethorphan does not affect tetracycline absorption.

D. Analgesics that contain acetaminophen.→ Incorrect. Acetaminophen does not bind to tetracycline or impact its absorption.

Lexicomp Drug Interaction Database – Tetracycline and Calcium Interactions.

FDA Drug Label for Tetracycline – Absorption and Drug Interaction Warnings.

Mosby’s Pharmacy Technician: Principles and Practice – Tetracycline Pharmacology.

PTCB PTCE Exam Content Outline – Drug Interactions and Contraindications.

Why Should Tetracycline Not Be Taken with Calcium-Containing Antacids?Patient Counseling for Tetracycline Use:Why the Other Answer Choices Are Incorrect:Pharmacy Technician References:

In the providedcompounded prescription, the antifungal agent isnystatin.

Nystatin is a polyene antifungalthat works by binding toergosterolin fungal cell membranes, causing leakage of cellular contents and fungal cell death.

It iscommonly used for fungal infections, particularlycutaneous or mucosal Candida infections(e.g., diaper rash, oral thrush).

A. Cholestyramine.→ Incorrect. Cholestyramine is abile acid sequestrantused to lowercholesteroland treatdiarrhea(often in combination with other ingredients for skin irritation or wounds).

B. Hydrocortisone.→ Incorrect. Hydrocortisone is acorticosteroidused to reduceinflammation and itching, but it does not kill fungi.

C. Zinc oxide.→ Incorrect. Zinc oxide is askin protectantused fordiaper rash and minor burns, but it is not an antifungal.

Lexicomp Drug Database – Nystatin Mechanism of Action.

FDA Drug Label for Nystatin – Antifungal Properties.

PTCB PTCE Exam Content Outline – Compounded Preparations and Active Ingredients.

Mosby’s Pharmacy Technician: Principles and Practice – Dermatologic Compounding.

Why Is Nystatin an Antifungal?Why the Other Answer Choices Are Incorrect:Pharmacy Technician References:Conclusion:Pharmacy technicians must befamiliar with drug classificationsto correctly identify active ingredients incompounded prescriptions.Nystatin is the only antifungal agentin the provided formulation.

Prilosec (Omeprazole) is a delayed-release proton pump inhibitor (PPI)used forGERD, ulcers, and acid reflux. It comes incapsulescontainingenteric-coated granules, designed to protect the medication from stomach acid and ensure proper absorption.

Prilosec capsules contain enteric-coated granulesthat are safe to sprinkle on soft foodswithout chewing.

Applesauce is an ideal optionbecause it doesnot interfere with drug absorption or stability.

B. Chew and swallow the capsules❌→ Incorrect

Chewing destroys the enteric coating, leading to premature drug release and degradation by stomach acid.

C. Compound the capsules into a topical preparation❌→ Incorrect

Prilosecis not formulated for topical use. The medication must reach the stomach intact for proper effect.

D. Allow the capsules to dissolve under the tongue❌→ Incorrect

Sublingual administration is ineffectivebecauseomeprazole is not absorbed through the mucous membranesand needs enteric protection.

FDA Omeprazole Medication Guide– States that the contents can be sprinkled on applesauce.

ISMP Safe Medication Use Guidelines– Emphasizes proper administration of delayed-release capsules.

PTCB PTCE Exam Content Outline– Covers modified-release formulations and proper drug administration techniques.

Why Can the Capsules Be Opened?Why Not the Other Options?Key References:

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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)

Linaclotide (brand name: Linzess)must be dispensed in its original containerbecause:

It is highly moisture-sensitive, and removing it from its original container may lead to degradation.

The manufacturer provides a desiccantin the original packaging toprotect against humidity.

A. Furosemide❌→Does not require original container.

While furosemide tablets should be stored properly,they do not require dispensing in the original container.

C. Valsartan❌→Does not require original container.

Valsartan tablets arestable outside the original container.

D. Sertraline❌→Does not require original container.

Sertraline (Zoloft)can be repackagedwithout stability issues.

FDA Linzess Storage Guidelines– States that Linzessmust be stored in its original container with desiccant.

USP <797> & <800> Guidelines– Cover proper storage and handling of moisture-sensitive drugs.

PTCB PTCE Exam Content Outline– Includes special drug storage requirements.

Why Not the Other Options?Key References:

Before dispensing a prescription, pharmacy technicians and pharmacists must ensure that it iscomplete, clear, and unambiguousto avoid medication errors.

Medication:Lisinopril

Strength:20 mg (Clear)

Route:PO (by mouth) (Clear)

Directions:Take 1 tab PO q8h (every 8 hours)❌(Needs Clarification)

Quantity:30 tablets (Clear)

Refills:12 (Needs verification but is not the main issue)

Lisinopril is an ACE inhibitorused for hypertension and heart failure.

Standard dosing is once daily (q24h), not every 8 hours (q8h).

A frequency of q8h (three times daily) is unusual and could be a prescribing error.

Pharmacists must verify with the prescriber before dispensing.

(A) Directions for use✅Correct – "q8h" is incorrect for lisinopril and needs clarification.

(B) Medication strength❌Incorrect – "20 mg" is a standard strength for lisinopril.

(C) Route of administration❌Incorrect – "PO" (by mouth) is correct.

(D) Number of refills❌Incorrect – While 12 refills is uncommon for chronic medications, it is not the primary issue.

Lisinopril Prescribing Information (FDA): https://www.accessdata.fda.gov

Institute for Safe Medication Practices (ISMP) – High-Alert Medications:https://www.ismp.org

PTCB Exam Content Outline – Prescription Processing & Clarification

Analysis of the Prescription:Why the Directions Need Clarification:Analysis of Answer Choices:References for Pharmacy Technicians:

When entering prescription information into a pharmacy computer system,using leading zeros helps prevent medication dosing errorsby clearly specifying the correct dose.

What Are Leading Zeros?Aleading zerois azero placed before a decimal pointto prevent misinterpretation.

✅Correct:0.5 mg(clearly means half a milligram)

❌Incorrect:.5 mg(could be mistaken for 5 mg, leading to a10× overdose).

A. Allergies❌→Important, butnot directly related to dosing errors.

C. Insurance Information❌→Unrelated to medication dosing safety.

D. Contraindications❌→Relevant to medication selection, but not specific to preventing dosing errors.

ISMP Best Practices for Medication Safety– Recommends usingleading zerosto prevent dosing mistakes.

Joint Commission "Do Not Use" List– Warns against missing leading zeros in prescriptions.

PTCB PTCE Exam Content Outline– Covers prescription entry and error prevention strategies.

Why Not the Other Options?Key References: