Indications And Scheduling - NAPLEX

1. What is the primary indication for allopurinol therapy in gout management?

   Chronic urate lowering (gout prophylaxis), not acute flare treatment. Allopurinol inhibits xanthine oxidase to lower uric acid levels long-term, but can worsen acute flares if initiated during them.

2. Which medication is indicated for opioid use disorder maintenance: methadone or naltrexone?

   Methadone. Methadone acts as a long-acting opioid agonist to stabilize patients and reduce withdrawal in maintenance therapy.

3. Which insulin is a long-acting basal insulin: insulin lispro or insulin glargine?

   Insulin glargine. Long-acting insulins like glargine provide steady basal coverage without peaks to maintain overnight glucose control.

4. Which anticoagulant is used for immediate anticoagulation when initiating warfarin in acute VTE?

   Parenteral heparin (UFH) or low-molecular-weight heparin. Heparins provide immediate anticoagulation while warfarin achieves therapeutic levels over several days.

5. What is the recommended scheduling separation for levothyroxine from calcium or iron supplements?

   Separate by at least $4$ hours. Cations in supplements bind levothyroxine, reducing absorption if not temporally separated.

6. What is the indication for naloxone, and what is the typical route in emergencies?

   Opioid overdose reversal; intranasal or intramuscular. Naloxone acts as an opioid antagonist to rapidly reverse respiratory depression in overdose situations via accessible routes.

7. What is the typical dosing frequency for nitrofurantoin macrocrystals/monohydrate (Macrobid)?

   Twice daily. Bid dosing maintains therapeutic levels for the 5-day course in treating urinary tract infections.

8. What is the indication for aspirin $81$ mg daily in secondary prevention?

   Secondary prevention of ASCVD events (post-MI, stroke, PAD). Low-dose aspirin inhibits platelet cyclooxygenase to reduce recurrent cardiovascular events in at-risk patients.

9. Which medication is indicated for acute gout flare: allopurinol or colchicine?

   Colchicine. Colchicine reduces inflammation in acute gout by inhibiting microtubule assembly and neutrophil migration.

10. What is the FDA pregnancy category for isotretinoin, and what does it indicate clinically?

    Category X; contraindicated in pregnancy due to teratogenicity. Isotretinoin causes severe birth defects, making it absolutely contraindicated during pregnancy as per FDA classification.

11. What is the indication for clopidogrel in patients with coronary stent placement?

    Dual antiplatelet therapy to prevent stent thrombosis. Clopidogrel inhibits platelet aggregation, combined with aspirin to minimize thrombotic events post-stenting.

12. What is the preferred dosing schedule for levothyroxine administration relative to meals?

    Once daily on an empty stomach, $30$–$60$ minutes before breakfast. Optimal absorption of levothyroxine occurs in a fasting state to avoid interference from food.

13. What is the indication for oseltamivir, and when should it be started for best effect?

    Influenza treatment; start within $48$ hours of symptom onset. Oseltamivir inhibits neuraminidase to reduce influenza viral replication, with efficacy highest when started early.

14. Which insulin is typically used for mealtime coverage: insulin lispro or insulin glargine?

    Insulin lispro. Rapid-acting insulins like lispro mimic postprandial insulin spikes to control blood glucose after meals.

15. What is the indication for epinephrine intramuscular injection in outpatient use?

    Anaphylaxis treatment. Epinephrine counters severe allergic reactions by inducing vasoconstriction and bronchodilation in emergency settings.

16. What is the first-line indication for nitroglycerin sublingual tablets?

    Acute angina pectoris relief. Sublingual nitroglycerin provides rapid vasodilation to alleviate chest pain during acute angina episodes.

17. What is the standard INR therapeutic goal for most indications treated with warfarin?

    INR $2.0$–$3.0$. This INR range balances anticoagulation efficacy against bleeding risk for conditions like atrial fibrillation or VTE.

18. What is the correct administration schedule for proton pump inhibitors relative to meals?

    Take $30$–$60$ minutes before a meal (usually breakfast). PPIs require an acidic environment for activation, with pre-meal dosing aligning with peak parietal cell activity.

19. What is the correct administration schedule for alendronate to reduce esophagitis risk?

    Weekly AM dose; empty stomach with water; stay upright $30$ minutes. This regimen maximizes alendronate absorption and minimizes esophageal irritation from bisphosphonate exposure.

20. Which drug is indicated for acute bacterial cystitis in women: nitrofurantoin or azithromycin?

    Nitrofurantoin. Nitrofurantoin concentrates in urine to treat uncomplicated UTIs, unlike azithromycin which targets different infections.

21. What is the indication for vancomycin oral therapy (not IV vancomycin)?

    Clostridioides difficile infection. Oral vancomycin targets C. difficile in the gut without systemic absorption, unlike IV for other infections.

22. What is the indication for metformin as first-line therapy in type $2$ diabetes?

    Type $2$ diabetes mellitus (initial pharmacotherapy unless contraindicated). Metformin improves insulin sensitivity and reduces hepatic glucose production, making it preferred unless renal impairment exists.

23. What is the primary indication for albuterol inhaler (SABA) in asthma management?

    Rapid relief of acute bronchospasm. Short-acting beta-agonists like albuterol quickly relax bronchial smooth muscle to reverse acute asthma exacerbations.

24. What is the indication for warfarin therapy in atrial fibrillation?

    Stroke and systemic embolism prevention in atrial fibrillation. Warfarin reduces thromboembolic risk in atrial fibrillation by inhibiting vitamin K-dependent clotting factors.

25. Which vaccine is contraindicated in pregnancy: MMR or Tdap?

    MMR. Live vaccines like MMR pose risks to the fetus, unlike inactivated Tdap which is recommended during pregnancy.

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