Pass the PTCB CPhT PTCE Questions and answers with Dumpstech

• In medication safety terminology used across pharmacy technician study materials and safety taxonomies, an adverse event (specifically, a preventable adverse drug event) occurs when a medication error reaches the patient and results in harm or has the clear potential for harm (e.g., incorrect patient’s medication taken for several doses).

• By contrast, near misses (or “close calls”) are errors that are intercepted before they reach the patient, such as when a pharmacist catches incorrect directions during counseling (Option A), when a technician detects that a prescription was bagged but not yet verified (Option C), or when a technician finds a prescription placed in the wrong will-call bin before pickup (Option D). These represent process breakdowns with potential for harm but no patient exposure once intercepted.

• Therefore, the scenario most likely to lead to an adverse event is Option B, where the patient has already ingested medication intended for another patient. That constitutes an error that reached the patient, with a meaningful risk of harm, aligning with definitions for preventable adverse drug events.

References (Pharmacy Technician documents/Study Guides):

• NCC MERP (National Coordinating Council for Medication Error Reporting and Prevention) Taxonomy and definitions on medication errors, near misses, and events reaching the patient.

• ISMP (Institute for Safe Medication Practices) medication safety terminology and event classification used in community and institutional pharmacy practice.

• PTCB/ExCPT-aligned Pharmacy Technician Certification study guides: sections on medication safety, event reporting, and error prevention (definitions of “adverse event,” “medication error,” and “near miss/close call”).

• ASHP guidelines on preventing medication errors in community pharmacy workflows (verification steps, counseling interception points, and will-call bin best practices).

To determine theweight/weight (w/w) percentage strength, use the formula:

\text{w/w % strength} = \left( \frac{\text{Mass of Active Ingredient (g)}}{\text{Total Mass of Final Product (g)}} \right) \times 100

Given:

Mass of zinc oxide (active ingredient) = 4.5 g

Total mass of final ointment = 30 g

\text{w/w % strength} = \left( \frac{4.5}{30} \right) \times 100 =0.15×100= 0.15 \times 100=0.15×100 =15%= 15\%=15%

(A) 0.25%❌Incorrect – This is too low.

(B) 10%❌Incorrect – This would be true if 3 g of zinc oxide were used in 30 g total.

(C) 15%✅Correct – The calculation confirms this answer.

(D) 17.5%❌Incorrect – This would be true if 5.25 g of zinc oxide were used in 30 g total.

Pharmaceutical Calculations, 15th Edition– Howard C. Ansel

The United States Pharmacopeia (USP) Chapter <795>– Compounding Non-Sterile Preparations

PTCB Exam Content Outline – Pharmaceutical Calculations

Analysis of Answer Choices:References for Pharmacy Technicians:

TheInstitute for Safe Medication Practices (ISMP)maintains a list oferror-prone abbreviationsthat shouldnot be usedin medication orders to prevent misinterpretation and medication errors.

Analysis of the Answer Choices:Abbreviation

Meaning

ISMP Recommendation

U

Units

❌Do NOT use→ Can be mistaken for "0" or "4" (e.g., 10U could be misread as 100).Use"unit"instead.

AD

Right ear

❌Do NOT use→ Can be confused with "OD" (right eye).Use"right ear"instead.

AU

Both ears

❌Do NOT use→ Can be confused with "OU" (both eyes).Use"both ears"instead.

gtt

Drop

✅Accepted→ Common and not considered error-prone.

Since"gtt" for drop is not on ISMP's "Do Not Use" list, it is the correct answer.

ISMP List of Error-Prone Abbreviations– Confirms that "U," "AD," and "AU" should not be used in prescriptions.

Joint Commission "Do Not Use" List– Prohibits "U" and similar abbreviations to prevent dosing errors.

PTCB PTCE Exam Content Outline– Covers error prevention strategies, including abbreviation safety.

Key References:

Sertraline (Zoloft)is anSSRI antidepressantused formajor depressive disorder (MDD), anxiety, and other mood disorders.Suicidal ideation(thoughts of self-harm) is aserious and potentially life-threatening side effect, especially inyoung adults. A pharmacy technicianmust notify the pharmacist immediatelyif a patient reportssuicidal thoughts, as this may require immediate medical intervention.

A. Presents new insurance coverage→ Incorrect; this is an administrative issue, not a clinical concern.

B. Requests the refill two days early→ Incorrect; a slight early refill request does not indicate a safety concern.

D. Reports improved interest and motivation→ Incorrect; this is apositive treatment response, not an urgent issue.

Other Answer Choices Explained:References:

FDA Black Box Warning for SSRIs – Suicide Risk in Young Adults

PTCB PTCE Exam Content Outline (Medication Safety & Patient Communication)

Lexicomp Drug Monograph for Sertraline (Zoloft)

Lamivudine (Epivir)is anantiretroviral agent used to treat HIV/AIDS and hepatitis B. Some antiretroviral drugs are classified ashigh-alert medications in certain healthcare settingsbecause:

Dosing errors can lead to treatment failure or resistance.

Severe side effects and toxicities may occur if misused.

TheInstitute for Safe Medication Practices (ISMP)includes some antiretrovirals in theirhigh-alert medication list, especially in hospitals.

A. Meperidine❌→Not an antiretroviral; it's a narcotic analgesic (opioid pain reliever).

B. Olopatadine❌→Not an antiretroviral; it's an antihistamine (used for allergies).

D. Tizanidine❌→Not an antiretroviral; it's a muscle relaxant.

ISMP High-Alert Medication List– Includes certainantiretroviral drugs as high-alert medications in some settings.

FDA Drug Labeling for Lamivudine (Epivir)– ListsHIV/AIDS and Hepatitis B as indications.

PTCB PTCE Exam Content Outline– Covers high-alert medications and their risks.

Why Not the Other Options?Key References:

Cefdinir is a cephalosporin (β-lactam) antibiotic. Patients with a penicillin allergy can have cross-reactivity with cephalosporins due to similar β-lactam structures, although the risk is lower with later generations like cefdinir. Because of this known potential cross-sensitivity, it is standard practice to assess for penicillin allergy when dispensing cephalosporins. Option A is incorrect because penicillin allergy is not an absolute, specific contraindication to cefdinir in all cases; risks must be assessed. Option B is incorrect (fluoroquinolones are unrelated class). Option D is overly general and not a standard rationale.

References (Pharmacy Technician documents/Study Guides):

• PTCB/ExCPT study materials on antibiotic classes and allergy cross-reactivity (β-lactams: penicillins and cephalosporins).

• ISMP medication safety guidance on allergy screening and β-lactam cross-sensitivity.

• Community pharmacy counseling references on assessing penicillin allergies before dispensing cephalosporins.

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

Ketorolac (Toradol) is a nonsteroidal anti-inflammatory drug (NSAID) available in:

Oral tablets

Injectable IM/IV formsIt’s commonly used for short-term pain relief.

The others:

Dobutamine – IV only (used in cardiac settings)

Benzonatate – Oral capsules only (cough suppressant)

Cefazolin – Injectable only (no oral form; used in perioperative antibiotic prophylaxis)

From Mosby’s Pharmacy Technician:

“Ketorolac is one of the few NSAIDs that comes in both oral and parenteral forms, making it useful for step-down therapy in pain management.”

Aricept (Donepezil) is a cholinesterase inhibitorused for treatingmild, moderate, or severe Alzheimer's disease dementia.

Itworks by increasing acetylcholine levels in the brain, improving memory and cognitive function.

FDA-approved for all stages of Alzheimer’s disease.

B. Azilect❌→Used for Parkinson’s disease, not Alzheimer's.

Azilect (Rasagiline) is a monoamine oxidase-B (MAO-B) inhibitorthat helps manage Parkinson’s symptoms but is not indicated for dementia.

C. Ambien❌→Used for insomnia, not Alzheimer's dementia.

Ambien (Zolpidem) is a sedative-hypnotic for sleep disordersand does not treat cognitive decline.

D. Atacand❌→Used for hypertension, not dementia.

Atacand (Candesartan) is an angiotensin receptor blocker (ARB) used to treat high blood pressure and heart failure.

FDA Approved Uses for Donepezil (Aricept)– Confirms its indication for all stages of Alzheimer’s disease.

Alzheimer’s Association Treatment Guidelines– Listscholinesterase inhibitors as first-line therapy for dementia.

PTCB PTCE Exam Content Outline– Covers pharmacologic treatments for cognitive disorders.

Why Not the Other Options?Key References:

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: