DHA Pharmacist Clinical Pharmacology and Therapeutics 2 — Questions and Answers
Question 1: What is the pharmacological management of diabetic ketoacidosis (DKA) that DHA pharmacists should understand?
- Oral metformin only
- IV insulin infusion, aggressive fluid resuscitation with normal saline, potassium replacement, and bicarbonate in severe acidosis (Correct answer)
- Oral glucose administration
- Subcutaneous insulin only
Correct answer: IV insulin infusion, aggressive fluid resuscitation with normal saline, potassium replacement, and bicarbonate in severe acidosis
DKA management requires IV regular insulin infusion, aggressive fluid replacement with 0.9% NaCl, potassium supplementation (monitored closely), and sodium bicarbonate only for pH <6.9.
Question 2: What anticoagulant therapy options are available in Dubai and what are their key differences?
- Only warfarin is available
- Warfarin (requires INR monitoring), DOACs like rivaroxaban/apixaban (fixed dosing, fewer interactions), and heparin (IV/SC for acute management) (Correct answer)
- Only aspirin is used for anticoagulation
- All anticoagulants are identical
Correct answer: Warfarin (requires INR monitoring), DOACs like rivaroxaban/apixaban (fixed dosing, fewer interactions), and heparin (IV/SC for acute management)
Dubai pharmacies dispense warfarin (VKA requiring INR monitoring), DOACs (rivaroxaban, apixaban, dabigatran with fixed dosing and fewer food interactions), and heparins (UFH, LMWH) for acute anticoagulation.
Question 3: What is the DHA pharmacist's role in antibiotic stewardship?
- No role in antibiotic stewardship
- Review antibiotic prescriptions for appropriateness, dose optimization, de-escalation, duration, and educate patients on adherence and resistance (Correct answer)
- Only dispense antibiotics as prescribed
- Only report antibiotic shortages
Correct answer: Review antibiotic prescriptions for appropriateness, dose optimization, de-escalation, duration, and educate patients on adherence and resistance
DHA pharmacists are integral to antibiotic stewardship: reviewing prescriptions for indication and appropriateness, recommending dose optimization, suggesting de-escalation, monitoring duration, and patient education on adherence.
Question 4: What is the pharmacokinetic consideration for medication dosing in patients with renal impairment?
- No dose adjustment is needed
- Medications primarily cleared by the kidneys require dose reduction or interval extension based on estimated GFR/creatinine clearance (Correct answer)
- Only increase the dose
- Renal impairment only affects IV medications
Correct answer: Medications primarily cleared by the kidneys require dose reduction or interval extension based on estimated GFR/creatinine clearance
Renally cleared medications require dose adjustment based on eGFR or CrCl calculations, typically through dose reduction or interval extension, to prevent drug accumulation and toxicity.
Question 5: What are the key considerations for medication use during Ramadan that DHA pharmacists must address?
- No medication adjustments are needed during Ramadan
- Adjust dosing schedules to Suhoor/Iftar times, modify insulin regimens, counsel on hydration, and identify medications requiring non-fasting routes (Correct answer)
- Advise all patients to stop medications during fasting
- Ramadan does not affect medication management
Correct answer: Adjust dosing schedules to Suhoor/Iftar times, modify insulin regimens, counsel on hydration, and identify medications requiring non-fasting routes
DHA pharmacists must help patients adjust medication timing to pre-dawn (Suhoor) and sunset (Iftar) meals, modify diabetes regimens to prevent hypoglycemia, ensure adequate hydration, and identify drugs that break the fast.
Question 6: What is the pharmacological basis for combination antihypertensive therapy used in Dubai clinical practice?
- Combination therapy is not used in Dubai
- Combining drugs from different classes (ACE-I/ARB + CCB + diuretic) addresses multiple pathophysiological mechanisms and improves blood pressure control (Correct answer)
- Only single-drug therapy is recommended
- Combinations are only for resistant hypertension
Correct answer: Combining drugs from different classes (ACE-I/ARB + CCB + diuretic) addresses multiple pathophysiological mechanisms and improves blood pressure control
Combination therapy targets multiple pathways simultaneously: RAAS blockade (ACE-I/ARB), vascular relaxation (CCB), and volume reduction (diuretic), achieving better BP control with lower individual doses and fewer side effects.
DHA Pharmacist Clinical Pharmacology and Therapeutics 2
What is the pharmacological management of diabetic ketoacidosis (DKA) that DHA pharmacists should understand?