What volume, inmL, of morphine sulfate that comes in10 mL vials at a concentration of 5 mg/mLwill be needed to fill an order for25 mg?
Comprehensive and Detailed Step-by-Step Explanation:
Step 1: Use the formula

Explanation of Answer Choices:C. 2.5Correct.2.5 mL provides the required25 mg dose.A. 0.5 Incorrect. Too low.B. 2 Incorrect. Under-dose.D. 5 Incorrect. Over-dose.
Reference:
USP <795>: Pharmaceutical Calculations
PTCB Exam: Dosage Conversions
According toUSP Chapter <800>, appropriateeye and face protectionmust be worn in which of the following scenarios involvingany hazardous drug?
USP <800> mandates that personal protective equipment (PPE) be worn when handling hazardous drug spillsto protect againstinhalation, skin absorption, or accidental ingestion.
Full PPE includes gloves, gowns, eye protection, and respiratory protection when necessary.
Reference:USP <800> Hazardous Drug Handling Guidelines.
Which of the following is a controlled substance?
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:Reference:
DEA Controlled Substances List (Schedule IV -- Butorphanol)
PTCB PTCE Exam Content Outline (Pharmacy Laws & Regulations -- Controlled Substances)
Federal Controlled Substances Act (CSA)
A patient is prescribed Prilosec capsules for gastroesophageal reflux disease. If thepatient is unable to swallow capsules, they may:
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 Reference:
Thegeneric namefor5-FUis:
5-FU (Fluorouracil) is a chemotherapy drugused forcolon, breast, and skin cancers.
It is apyrimidine analogthatprevents cancer cell DNA replication.
Why Other Options Are Incorrect:
A . Fluocinonide?Topical corticosteroid for skin conditions.
B . Fluoxetine (Prozac)?SSRI antidepressant.
C . Fluocinolone?Topical corticosteroid.
Reference:National Cancer Institute Chemotherapy Guide, PTCB Oncology Medications.
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