NAPLEX Practice Questions

Calcium and phosphate can precipitate in TPN if not carefully managed. Best practices include using calcium gluconate (less dissociation than calcium chloride), adding phosphate first and calcium last, using lower final concentrations, and ensuring proper refrigeration. Calcium and phosphate added should not exceed 45 mEq/L. Maintain proper pH (lower pH = less risk of precipitation). Refrigerate the bag once prepared.

3×200 = 600 mg = 0.6 g --> % = (0.6 / 30) × 100 = 2.0%

Sulfasalazine often causes nausea, headache, and reduced appetite. It's not the same as Asacol, and penicillin allergy is not a contraindication.

Pseudoephedrine stimulates adrenergic receptors, causing tachycardia, insomnia, and appetite suppression.

Corticosteroids like prednisone are well-known to cause hyperglycemia. Mycophenolate may also contribute, although less commonly.

Donepezil (Aricept) is the only one available as an ODT.

Bismuth subsalicylate contains salicylate, which can increase bleeding risk—especially in those taking anticoagulants like warfarin.

The pen can go through clothes; removing pants is not required and may delay use.

Anthracyclines like doxorubicin, daunorubicin, idarubicin, and epirubicin have lifetime dose limits due to risk of cardiotoxicity.

Ritonavir inhibits metabolism of nifedipine, increasing drug levels and side effects.