DHA Pharmacy & Medication Management 4

Question 1

A patient is prescribed warfarin and starts taking ciprofloxacin. What is the most important clinical concern?

Accepted Answer

Increased bleeding risk due to elevated INR

Answer

Ciprofloxacin inhibits CYP1A2 and CYP3A4, reducing warfarin metabolism and significantly increasing INR and bleeding risk.

Question 2

Under DHA regulations, which medication category requires a special controlled substance permit for dispensing in Dubai?

Accepted Answer

Schedule I and II opioids

Answer

DHA requires a special controlled substance permit for dispensing Schedule I and II opioids in compliance with UAE Federal Law No. 14 of 1995.

Question 3

A pharmacist receives a prescription for methotrexate 2.5 mg tablets for a rheumatoid arthritis patient. The prescription reads 'take daily.' What is the safest action?

Accepted Answer

Contact the prescriber to clarify — methotrexate for RA is typically dosed weekly

Answer

Methotrexate for non-oncologic conditions is dosed weekly; daily dosing is a well-documented fatal prescribing error requiring pharmacist intervention.

Question 4

Which storage condition is required for insulin that is currently in use by the patient?

Accepted Answer

Room temperature (up to 25–30°C) for up to 28–30 days

Answer

Once opened, most insulin vials or pens can be stored at room temperature (up to 25–30°C) for 28–30 days without significant potency loss.

Question 5

A patient with severe renal impairment (CrCl < 30 mL/min) is prescribed a standard dose of enoxaparin. What is the pharmacist's primary concern?

Accepted Answer

Accumulation leading to increased bleeding risk

Answer

Enoxaparin is renally eliminated; reduced kidney function leads to drug accumulation and a markedly elevated bleeding risk requiring dose adjustment.

DHA - Dubai Health Authority Practice Test

DHA - Dubai Health Authority Practice Test

DHA Pharmacy & Medication Management 4