Free PTCB PTCE Practice Exam with Questions & Answers

Amlodipine(10 mg) anddiltiazem(30 mg) are bothcalcium channel blockers (CCBs)used to treat hypertension and angina.

When a patient is prescribed two medications from the same therapeutic class, the pharmacy's prescription processing system may flag this as"therapeutic duplication."

This alert is meant toprevent potential adverse effectssuch as excessive lowering of blood pressure or heart rate.

A. Prior authorization required→ Not applicable unless the insurance requires special approval before covering the drug.

C. NDC not covered→ Would appear if the specific drug product (based on its National Drug Code) is not covered by insurance, but this scenario relates to duplication, not coverage.

D. Refill too soon→ This applies to refilling a medication before the allowed time frame, but the scenario describes a new prescription.

PTCB PTCE Exam Content Outline – Drug Interactions and Therapeutic Duplication

Lexicomp and Micromedex Drug Databases– Reference sources for drug classifications.

ISMP Guidelines on Preventing Therapeutic Duplication Errors

Why Other Answers Are Incorrect?Pharmacy Technician References:

Comprehensive and Detailed Step-by-Step Explanation:

Adsorption occurs when a drug binds to a surface (e.g., IV tubing), reducing its potency.Some drugs, likeinsulin and nitroglycerin,canadhere to plastic tubing, reducing the active dose the patient receives.

????Explanation of Answer Choices:✅A. Lose potency→Correct.Adsorptionreduces drug strength.❌B. Become contaminated→ Incorrect.Adsorption does not introduce contaminants.❌C. Require refrigeration→ Incorrect.Refrigeration is unrelated to adsorption.❌D. Trigger anaphylaxis→ Incorrect.Adsorption does not cause allergic reactions.

????Reference:

USP <797>: Sterile Compounding

ISMP Guidelines on IV Drug Stability

Comprehensive and Detailed Step-by-Step Explanation:

Stock rotation (First In, First Out - FIFO)ensures thatolder medications are used before newer stock, reducing expired medication dispensing.

????Explanation of Answer Choices:✅C. Rotating stock on a regular basis→Correct.FIFO method reduces waste and errors.❌A. Verifying each lot number→ Incorrect.Lot numbers do not indicate expiration dates.❌B. Using the newest medications first→ Incorrect.Older stock should be used first.❌D. Using the last in, first out method→ Incorrect.Opposite of the correct practice.

????Reference:

USP <1079>: Medication Storage and Inventory Control

PTCB Exam: Inventory Management

Incompatibility in a nonsterile compound can be identified through various physical, chemical, and therapeutic changes.An unexpected change in odoris a key indicator of chemical instability, contamination, or degradation of a compounded preparation. Some ingredients may break down into volatile compounds, leading to noticeable odor changes.

A. A clear solution→ Incorrect; clarity alone does not indicate incompatibility.Some solutions may be clear but still chemically unstable.

B. The use of a pH buffer system→ Incorrect; buffer systems are used to maintain pH stability and prevent incompatibility rather than indicate it.

D. Suspension particles settling to the bottom of a container→ Incorrect; suspensions naturally settle and require shaking before use.This is not necessarily a sign of incompatibility.

Other Answer Choices Explained:References:

USP <795> Pharmaceutical Compounding—Nonsterile Preparations

PTCB PTCE Exam Content Outline (Medication Safety & Quality Assurance)

Remington: The Science and Practice of Pharmacy

Zyrtec (cetirizine)is asecond-generation antihistamineused to treatallergies.

Schizophreniais a psychiatric disorder treated withantipsychotics, NOT antihistamines.

This is likely aLook-Alike Sound-Alike (LASA) error, where the intended drug wasZyprexa (olanzapine), anantipsychoticcommonly used for schizophrenia.

The technician must alert the pharmacist before dispensing.

Why Other Options Are Incorrect:

A. Special Handling?❌No, Zyrtec is OTC and does not require special handling.

B. Exceeding Daily Dose?❌No, Zyrtec’s max daily dose is 10 mg for adults.

D. REMS Program?❌No, Zyrtec is not part of aRisk Evaluation and Mitigation Strategy (REMS) program.

????Reference:ISMP’s LASA Drug List,FDA Drug Labeling Guidelines.

Needlegauge (G)refers to thediameter of the needle’s lumen(opening).The higher the gauge number, the smaller the needle diameter.

Lower gauge (e.g., 13G, 18G)→Larger needle(wider opening)

Higher gauge (e.g., 27G)→Smaller needle(narrower opening)

Common Needle Gauges and Their Uses:Gauge (G)

Needle Diameter (mm)

Common Use

13G

2.4 mm

IV drug administration (large-bore)

18G

1.2 mm

Drawing thick medications (e.g., oil-based injections)

20G

0.9 mm

General intramuscular (IM) injections

27G

0.4 mm

Subcutaneous (SC) or intradermal (ID) injections (e.g., insulin, vaccines)

Since27Gis the highest gauge listed, it corresponds to thesmallestneedle diameter, making it the correct answer.

A. 13G❌→ One of the largest gauges, used for IV fluids or blood transfusions.

B. 18G❌→ Large needle used for thick medications likedepot injections or contrast agents.

C. 20G❌→ Common forintramuscular injectionsbut larger than 27G.

PTCB PTCE Exam Content Outline– Covers needle gauges, injection routes, and proper medication administration.

USP <797> & USP <800>– Provide sterile compounding guidelines, including appropriate needle gauge selection.

CDC Vaccine Administration Guidelines– Recommend25-30Gfor subcutaneous and intradermal injections.

Why Not the Other Options?Key References:

Comprehensive and Detailed Step-by-Step Explanation:

Lorazepam oral concentrate (Ativan)should be storedat controlled room temperature (20-25°C or 68-77°F)and protected fromlight. It should not be refrigerated or frozen.

????Explanation of Answer Choices:✅B. Lanoxin oral solution→Correct.LikeLorazepam, Lanoxin (Digoxin)requires room temperature storage.❌A. Lamictal chewable tablets→ Incorrect.Stored at room temperature, but not a liquid formulation.❌C. Lyumjev KwikPen→ Incorrect.Insulin pens require refrigeration.❌D. Lunesta tablets→ Incorrect.A solid dosage form, not comparable to a liquid oral concentrate.

????Reference:

USP <1079>: Storage and Handling of Pharmaceuticals

FDA Storage Recommendations for Lorazepam

Under federal DEA requirements for transferring controlled substance prescriptions in Schedules III–V, the receiving pharmacist must document key original prescription details, including the date of original dispensing, the original date of issuance, the original number of refills authorized, the number of refills remaining, and pertinent information about the transferring pharmacy (name, address, DEA, and Rx number), as well as the name of the transferring pharmacist. Information such as the medication’s expiration date or the receiving pharmacy’s DEA number is not required to be newly noted by the receiving pharmacy for the transfer record. The prescriber’s DEA number is part of the original prescription, but federal transfer documentation specifically requires noting the original dispensing date rather than re-recording the prescriber’s DEA.

References (Pharmacy Technician documents / Study Guides):

• DEA regulations for transfers of Schedule III–V prescriptions (21 CFR 1306.25) — required information for transferring and receiving pharmacists.

• PTCB/ExCPT prep materials: controlled substance prescription transfer documentation requirements.

Lot numbers are required for drug recalls and tracking purposes.

Prescription numbers are pharmacy-specific and not on manufacturer packaging.

????Reference:FDA Drug Labeling Requirements, USP Manufacturing Guidelines.

Comprehensive and Detailed Step-by-Step Explanation:

MedWatchis theFDA's Safety Information and Adverse Event Reporting Program, used totrack drug and device safety concerns.Pharmacists and healthcare professionals should report:

Adverse drug reactions (ADRs).

Medical device failures or malfunctions.

Medication errors that lead to harm.

Product quality issues related to safety.

????Explanation of Answer Choices:✅D. Medical device malfunctions→Correct.MedWatch monitors medical device safety, including pacemakers, insulin pumps, and inhalers.❌A. Medication reimbursement complaints→ Incorrect.Billing and insurance issues are not handled by MedWatch.❌B. Damaged medications received from a wholesaler→ Incorrect.These issues should be reported to the wholesaler or manufacturer, not MedWatch.❌C. Complaints about pharmacy staff→ Incorrect.These concerns should be reported to the state board of pharmacy.

????Reference:

FDA MedWatch Program

PTCB Exam: Medication Safety & Reporting