PTCE Exam Dumps - PTCB CPhT Questions and Answers

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:

Comprehensive and Detailed Step-by-Step Explanation:

TheDEA (Drug Enforcement Administration) mandates that controlled substance records must be kept for at least 2 years.

????Explanation of Answer Choices:✅B. 2 years→Correct.TheControlled Substances Act (CSA) requires pharmacies to maintain records for at least 2 years.❌A. 1 year→ Incorrect.Too short.❌C. 5 years→ Incorrect.Some states require longer retention, but federal law states 2 years.❌D. 7 years→ Incorrect.Not required by federal law.

????Reference:

DEA Controlled Substances Act (21 CFR § 1304.04)

PTCB Exam: Pharmacy Law & Regulations

To determine the correct volume of amoxicillin suspension per dose, use the given concentration and dose.

Prescription dose:150 mg per dose

Suspension concentration:250 mg per 5 mL

Formula to calculate volume needed:Volume (mL)=Prescribed dose (mg)Concentration (mg/mL)\text{Volume (mL)} = \frac{\text{Prescribed dose (mg)}}{\text{Concentration (mg/mL)}}Volume (mL)=Concentration (mg/mL)Prescribed dose (mg)​

Step 1: Identify Given InformationStep 2: Calculate150 mg250 mg/5 mL=150×5250=750250=3 mL\frac{150 \text{ mg}}{250 \text{ mg/5 mL}} = \frac{150 \times 5}{250} = \frac{750}{250} = 3 \text{ mL}250 mg/5 mL150 mg​=250150×5​=250750​=3 mL

Thus, the patient should take3 mL per dose.

B. 4 mL→ Incorrect; this would correspond to a different strength.

C. 5 mL→ Incorrect; this would deliver250 mg, which is incorrect.

D. 6 mL→ Incorrect; this would deliver300 mg, exceeding the prescribed dose.

Other Answer Choices Explained:References:

PTCB PTCE Exam Content Outline (Pharmaceutical Calculations – Dosage & Volume Calculations)

USP <795> Guidelines for Nonsterile Compounding & Drug Dilution

Lexicomp Drug Monograph for Amoxicillin Suspension

Clopidogrel (Plavix) is an antiplatelet drug used to prevent blood clots, reducing the risk of heart attack (myocardial infarction) and stroke.

It is commonly prescribed afterstent placement, heart attack, or stroke.

Why Other Options Are Incorrect:

B. GERD?❌Treated withPPIs or H2 blockers(e.g., omeprazole, ranitidine).

C. Chronic migraines?❌Treated withbeta-blockers, triptans, or topiramate.

D. Type 2 diabetes?❌Treated withmetformin, insulin, or GLP-1 agonists.

????Reference:AHA Guidelines on Antiplatelet Therapy.

Comprehensive and Detailed Step-by-Step Explanation:

Adispensing erroroccurs when a pharmacy provides amedication that differs from the prescribed order.This may involvewrong drug, dose, form, or incorrect labeling.

????Explanation of Answer Choices:✅D. Received by the patient→Correct.Adispensing error is an error in what the patient actually receives, not what they request.❌A. Requested by the patient→ Incorrect.A patient request does not determine dispensing errors.❌B. On the plan formulary→ Incorrect.Formulary status affects insurance, not dispensing accuracy.❌C. Supplied by the wholesaler→ Incorrect.Errors in supply do not qualify as dispensing errors.

????Reference:

ISMP Guidelines on Medication Errors

PTCB Medication Safety Guidelines

A potential error is a mistake that is identified and corrected before it reaches the patient.

Example:A technician fillshydralazineinstead ofhydroxyzine, but the pharmacist catches the mistake before dispensing.

????Reference:ISMP Medication Error Categories, PTCE Pharmacy Error Prevention Guide.

Dilution formula:C₁V₁ = C₂V₂

C₁ = 20%, V₁ = 100 mL, C₂ = 2%

(20)(100) = (2)(V₂) → V₂ = 1000 mL(final volume after dilution).

Convert to oz:1000 mL ÷ 59 mL (2 oz) = 16 bottles.

????Reference:PTCE Pharmacy Dilution Calculations, USP <795> Guidelines.

AClass III recallis issued whena drug is unlikely to cause adverse health effects but has a labeling defect, packaging issue, or a minor violation of manufacturing regulations.

Example:A bottle of tablets with a slightly misprinted label.

Pharmacies must remove affected stock but are NOT required to notify patients or physicians.

Why Other Options Are Incorrect:

A. Posting signs?❌Only required for certain urgent recalls.

C. Notifying physicians?❌Required forClass I and some Class II recalls, not Class III.

D. Contacting patients?❌Not needed fornon-health-threatening recalls.

????Reference:FDA Drug Recall Guidelines, PTCE Exam Study Guide.

Nurtec ODT (Rimegepant)is anorally disintegrating tablet (ODT)used for theacute treatment of migraines. Since it is designed to dissolve quickly in the mouth,it is highly sensitive to moisture. Exposure to moisture can cause the tablets to degrade, dissolve prematurely, or lose potency.

Storage Requirement:

Must be kept in the original blister packaging until usetoprevent moisture exposure.

Should not be stored in pill organizers or opened ahead of time.

B. Light→ Incorrect; Nurtec ODT isnot highly photosensitive.

C. Heat→ Incorrect; while heat can degrade many medications,moisture is the primary concernfor ODT formulations.

D. Cold→ Incorrect; refrigeration isnot required, and cold storage does not affect the drug’s stability.

Other Answer Choices Explained:References:

FDA Drug Label for Nurtec ODT (Rimegepant) – Storage and Handling Instructions

USP <795> Nonsterile Compounding & Drug Stability Guidelines

PTCB PTCE Exam Content Outline (Medication Storage & Handling)

1 pint =473 mL(since 1 pint = 16 fluid ounces, and 1 fluid ounce = 29.5735 mL).A1% suspensionmeans1 g (1000 mg) of rifampin per 100 mLof suspension.

Total dose required:2 tbsp daily =30 mL per day(1 tbsp = 15 mL).

Total volume of the suspension:473 mL

Total rifampin required:(473 mL × 1000 mg) ÷ 100 mL =4730 mg

Each rifampin capsule contains300 mg.So,4730 mg ÷ 300 mg/capsule = 15.77 capsules, which rounds up to16 capsules.

Thus, the correct answer isC. 32 capsules(since the full pint must be compounded).

????Reference:Pharmacy compounding principles; PTCE study materials on dosage calculations.