1. Which excipient functions as a disintegrant in tablet formulation by swelling upon contact with water?

2. A prescription requires preparation of 200 mL of 0.45% sodium chloride solution. How many grams of NaCl are needed?

3. Which dosage form provides zero-order release kinetics, maintaining constant drug plasma levels over time?

4. A patient weighing 65 kg requires gentamicin 5 mg/kg/day IV divided every 8 hours. The available concentration is 40 mg/mL. How many milliliters should be administered per dose?

5. Which sterilization method is MOST appropriate for heat-labile ophthalmic solutions?

6. Which drug exhibits polymorphism where the metastable form has higher solubility but converts to stable form during storage?

7. A prescription calls for "qs ad 30 mL" of a suspension. What does "qs ad" mean?

8. Which preservative is commonly used in multidose ophthalmic preparations at 0.01% concentration?

9. Which factor MOST significantly affects the bioavailability of a weakly acidic drug administered orally?

10. A 5-year-old child (weight 18 kg) requires oral rehydration solution containing 75 mEq/L sodium. How many milliequivalents of sodium are in a 200 mL dose?

11. Which pharmaceutical calculation principle is used to determine the amount of active ingredient when mixing two solutions of different concentrations?

12. Which excipient serves as both a binder and a disintegrant in tablet manufacturing?

13. A pharmacist must prepare 500 mL of 1:5000 potassium permanganate solution. How many milligrams of potassium permanganate are required?

14. Which stability-indicating parameter is MOST critical for monitoring degradation of aspirin tablets during storage?

15. Which route of administration completely avoids first-pass hepatic metabolism?

16. A prescription requires 30 g of 2% miconazole cream. The pharmacy has 10 g tubes of 2% cream. How many tubes are needed to compound the prescription?

17. Which pharmaceutical technique is used to improve dissolution rate of poorly water-soluble drugs by reducing particle size to 1-10 micrometers?

18. Which labeling requirement is MANDATORY for all dispensed prescription medications in Yemen according to national regulations?

19. A 70 kg adult requires dopamine infusion at 5 mcg/kg/min. The prepared solution contains 400 mg dopamine in 250 mL D5W. What is the infusion rate in mL/hour?

20. Which quality control test ensures uniformity of weight in uncoated tablets?

21. Which antihypertensive agent works by blocking angiotensin II type 1 (AT1) receptors without affecting bradykinin metabolism?

22. A patient with heart failure and reduced ejection fraction is prescribed sacubitril/valsartan. Which adverse effect is UNIQUE to this medication class compared to ACE inhibitors alone?

23. Which antiplatelet agent irreversibly inhibits cyclooxygenase-1 (COX-1) in platelets for their entire lifespan?

24. A patient with atrial fibrillation is prescribed rivaroxaban. Which statement about its pharmacokinetics is CORRECT?

25. A patient with Parkinson's disease develops wearing-off phenomena with levodopa therapy. Which adjunct medication inhibits catechol-O-methyltransferase (COMT) to prolong levodopa effect?

26. Which antiepileptic drug blocks voltage-gated sodium channels and inhibits T-type calcium channels without significant hepatic enzyme effects?