Acetylcysteine label concentrations

PTCB PTCE
Order Entry and Processing
Matrix
Difficulty 3 of 5

Question

A pharmacy technician is checking a stock list against the acetylcysteine label. For each entry, classify whether the strength and acetylcysteine concentration match the label.

Row	Matches	Does not match
10%: 100 mg/mL	✓ Correct	Not correct
20%: 100 mg/mL	Not correct	✓ Correct
20%: 200 mg/mL	✓ Correct	Not correct
10%: 200 mg/mL	Not correct	✓ Correct

Answer

10%: 100 mg/mL: Matches · 20%: 100 mg/mL: Does not match · 20%: 200 mg/mL: Matches · 10%: 200 mg/mL: Does not match

Rationale

The label pairs each percentage with a particular acetylcysteine mass per mL. Swapping those mass concentrations between the two strengths makes the entries inconsistent with the label.

RememberVerify both expressions of concentration on each stock entry.

Sources

Acetylcysteine (acetylcysteine) oral, respiratory (inhalation) prescribing information, Hospira, Inc. U.S. Food and Drug Administration (openFDA) · License: CC0 1.0 · Retrieved November 2, 2026 · Description · effective_time 20260522

Last verified: November 5, 2026 2 independent automated checks Question ptcb-oep-00076, version 1

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