How often does the DEA require a pharmacy to perform a complete controlled substance inventory?
Answer choices
- AEvery year
- BEvery 2 years
- CEvery month
- DEvery week
About this question
How often does the DEA require a pharmacy to complete a full controlled substance inventory? Federal accountability rules set a minimum cadence for counting controlled substances on hand. PTCE items reward technicians who remember the federal schedule — not weekly or monthly stock habits from a busy pharmacy.
The correct exam expectation is every 2 years (biennial inventory). State boards or pharmacy policy may be stricter, but the federal PTCE answer still points to the biennial rule unless the stem says otherwise. Pair this fact with other DEA documentation items so compliance questions connect as one system.
Reveal answer & explanationShow
Correct answer
- AEvery year
- BEvery 2 yearsCorrect
- CEvery month
- DEvery week
Basic rationale
Federal law mandates a "Biennial Inventory" (every 2 years) of all controlled substances on hand.
Option explanations
- A: Incorrect. Annual inventory is required by some states, but the federal DEA requirement is every two years.
- B: Correct. Federal law requires a complete controlled substance inventory to be conducted biennially.
- C: Incorrect. Monthly inventory is a best practice for security but is not a federal legal requirement.
- D: Incorrect. Weekly inventory is not required by federal law for standard pharmacy operations.
Deep Analysis
Core logic
The DEA requires all 'registrants' (pharmacies) to conduct a thorough physical count of all controlled substances (Schedules II, III, IV, and V) every two years. This is known as the 'Biennial Inventory'. The pharmacy must record whether the count was taken at the 'Opening of Business' (OOB) or 'Closing of Business' (COB) and keep the records for at least 2 years.
Distractor analysis
A: While many states require annual (every year) inventory, the federal (DEA) requirement is biennial. C: Monthly 'cycle counts' are common in hospitals for better security, but not a federal mandate. D: Weekly counts are generally reserved for high-risk narcotics in high-volume settings, not a legal standard.
Exam trap
The PTCB is a NATIONAL exam, so use the Federal rule (2 years/Biennial) unless they specifically mention a state rule. Also, C-II counts must be EXACT, while C-III through C-V can often be ESTIMATED (unless the bottle holds >1000 pills).
Memory tip
✌️ Bi-ennial = 'Bye-ennial' (Every 2 years). Think of saying 'Bye' to the inventory every 2 years.
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