According to the Institute for Safe Medication Practices (ISMP), the abbreviation 'HCTZ' for hydrochlorothiazide may be misinterpreted as:

Rationale

Hydrocortisone

According to the Institute for Safe Medication Practices (ISMP), the abbreviation **HCTZ** for hydrochlorothiazide may be misinterpreted as **hydrocortisone**. This confusion occurs because both drug names share the “hydro-” prefix, and the abbreviation can be misread or miswritten, potentially leading to medication errors and patient harm.

A (hydrocodone.) YOUR ANSWER

This is incorrect. Although hydrocodone shares a similar prefix, it is not commonly misinterpreted from HCTZ according to ISMP guidelines.

B (hydrocortisone.) CORRECT

This is correct. ISMP specifically lists hydrocortisone as a drug that can be confused with hydrochlorothiazide when the abbreviation HCTZ is used.

C (hydromorphone.) YOUR ANSWER

This is incorrect. Hydromorphone is not associated with misinterpretation of HCTZ.

D (hydroxyzine.) YOUR ANSWER

This is incorrect. Hydroxyzine, while similar in prefix, is not a documented confusion with HCTZ per ISMP.

Conclusion

Abbreviations like HCTZ can increase the risk of medication errors. ISMP identifies hydrocortisone as a potential misinterpretation, emphasizing the importance of avoiding ambiguous abbreviations in prescriptions to ensure patient safety.

According to the Institute for Safe Medication Practices (ISMP), the abbreviation 'HCTZ' for hydrochlorothiazide may be misinterpreted as:

Hydrocortisone

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