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Medical Tests Certification
PTCE Exam
MedicalTests.PTCE.v2025-08-15.q130 Dumps

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Question 116

SIMULATION
Tylenol No. 3 is actaminophen 325 mg. and codeine _____mg.

Correct Answer:

30

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Question 117

If M-M-R II antigen were inadvertently reconstituted with a stock vial of normal saline, pharmacy staff should:

A.administer the vaccine as the diluents are equivalent.
B.report the incident to the Drug Enforcement Administration (DEA).
C.contact the Environmental Protection Agency (EPA) for guidance.
D.discard the vaccine as its efficacy could be altered.

Correct Answer: D

TheM-M-R II (Measles, Mumps, and Rubella) vaccinemust bereconstituted only with the manufacturer- supplied diluentto maintain its efficacy and stability.
* The manufacturer-provided diluent contains stabilizing agents that preserve the live attenuated virus.
* Using normal saline can alter the pH and degrade the vaccine, making it ineffective.
* The vaccine must be discarded if reconstituted incorrectlyand not administered.
* A. Administer the vaccine as the diluents are equivalent.##Incorrect
* Normal saline is NOT equivalent to the manufacturer's diluentand can compromise the vaccine's potency.
* B. Report the incident to the Drug Enforcement Administration (DEA).##Incorrect
* Vaccine errors should be reported to the CDC's Vaccine Adverse Event Reporting System (VAERS), not the DEA(which handles controlled substances, not vaccines).
* C. Contact the Environmental Protection Agency (EPA) for guidance.##Incorrect
* The EPA regulates hazardous waste, not vaccine errors.The CDC or vaccine manufacturer should be contacted for guidance.
* CDC Vaccine Storage and Handling Guidelines- States thatvaccines must be reconstituted only with manufacturer-supplied diluents.
* FDA Guidelines for M-M-R II Vaccine- Confirms that improper reconstitutionrenders the vaccine ineffective.
* PTCB PTCE Exam Content Outline- Covers proper vaccine handling and error prevention.
Why Is Normal Saline Not an Acceptable Diluent?Why Not the Other Options?Key References:

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Question 118

Pristiq has the same mechanism of action as:

A.valacyclovir
B.varenicline
C.venlafaxine
D.verapamil

Correct Answer: C

Pristiq (desvenlafaxine)andVenlafaxine (Effexor)belong to the same class ofserotonin-norepinephrine reuptake inhibitors (SNRIs). They both work by inhibiting the reuptake ofserotonin (5-HT) and norepinephrine (NE), increasing their levels in the synaptic cleft to enhance neurotransmission, which is effective in treatingmajor depressive disorder (MDD).
* A. Valacyclovir# Incorrect; valacyclovir is anantiviralused to treatherpes simplex and varicella-zoster infections.It inhibits viral DNA replication, not neurotransmitter reuptake.
* B. Varenicline# Incorrect; varenicline (Chantix) is apartial nicotinic receptor agonistused forsmoking cessation, not an SNRI.
* D. Verapamil# Incorrect; verapamil is acalcium channel blocker (CCB)used forhypertension and arrhythmias, which has no relation to antidepressant mechanisms.
Other Answer Choices Explained:References:
* PTCB PTCE Exam Content Outline (Pharmacology for Technicians - Nervous System Drugs)
* Lexicomp Drug Monographs for Desvenlafaxine and Venlafaxine
* Goodman & Gilman's The Pharmacological Basis of Therapeutics

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Question 119

How many milligrams are in 1 kilogram?

A.1,000,000
B.10,000
C.1,000
D.100,000

Correct Answer: A

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Question 120

Which of the following should be a characteristic of a successfulroot-cause analysis (RCA)used to investigate a significant medication error?

A.Termination of employment for the individuals involved in the medication error.
B.Focusing primarily on systems and processes rather than individual performance.
C.Immediate reporting of the error to the state board of pharmacy for a third-party investigation.
D.Criminal charges against the responsible pharmacist if a patient experienced serious injury or death.

Correct Answer: B

Comprehensive and Detailed Step-by-Step Explanation:
Root-Cause Analysis (RCA)is asystematic approachused toidentify the underlying causes of medication errors. RCA focuses onsystems and processes, not individual blame.
#Explanation of Answer Choices:#B. Focusing primarily on systems and processes rather than individual performance#Correct.RCA aims toprevent future errors by improving systems.#A. Termination of employment# Incorrect.Blaming individuals does not address system failures.#C. Immediate reporting to the state board# Incorrect.RCA is an internal investigation process.#D. Criminal charges# Incorrect.RCA focuses on improvement, not legal punishment.
#Reference:
* ISMP Guidelines on Root-Cause Analysis
* PTCB Medication Safety Principles

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