Leik - FNP Review Questions and answers (100% verified)

Which of the following drugs interact with warfarin/coumadin? a. Imodium (loperamide) b. Diltiazem Hydrochloride SR (diltiazem) c. trimethoporim-sulfamethoxazole (Bactrim) d. sumatriptan (Imitrex) correct answers c Sulfa drugs will interact with warfarin (increases the blood level), which results in an elevation of the INR and the risk of bleeding. The following drugs are potent inhibitors of the CYP450 system except: a. Erythromycin (Erythrocin) b. Cimetidine (Tagamet) c. Ceftazidime (Tazicef) d. Diltiazem (Cardizem) correct answers a Erythromycin acts as inhibitors slow down drug clearance, increasing drug concentration. This may lead to drug overdose. A 57 year old patient comes to the clinic for her routine physical. She has no new complaints. The only medication that she takes is digoxin (Lanoxin) for her atrial fibrillation. Which of the following electrolyte levels should be monitored in this patient? a. potassium, calcium, chloride b. magnesium, calcium, chloride c. potassium, calcium, magnesium d. magnesium, calcium, phosphate correct answers c Monitor digoxin level, EKG, electrolytes (potassium, magnesium, and calcium) A 48 year old female patient comes to the clinic today to discuss her ongoing use off Lithium. She states that she has begun feeling very tired and feels cold during the day. She thinks that her increase in Lithium dose is causing her symptoms. What should the nurse practitioner order? a. TSH b. CBC c. LFT d. BUN correct answers a Patients taking lithium have an increased risk of developing hypothyroidism by decreasing the production of T4. Levothyroxine replacement therapy concurrently with lithium administration especially in the presence of clinically overt hypothyroidism. A patient has recently been prescribed omeprazole (Prilosec) for GERD. He also takes lisinopril (Zestril). His PMH includes migraines, hypertension, and chronic kidney disease. The nurse practitioner notes: a. The patient should stop taking the omepr