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Answer:
2 g or 50 mg/kg IV/IM within 30-60 minutes before procedure in patients not allergic to penicillin and unable to take oral amoxicillin
Genitourinary and gastrointestinal tract procedures
Routine prophylaxis for GI/GU procedures no longer recommended by AHA; consider only patients with highest risk of adverse outcome from endocarditis (eg, prosthetic heart valve, previous endocarditis, some categories of congenital heart disease, cardiac valvulopathy in cardiac transplant patients) with established GI or GU enterococcal infection or for those already receiving antibiotic therapy to prevent a wound infection or sepsis associated with GI or GU procedure in which enterococcal coverage is desired
High-risk patients: 2 g IV/IM within 30 min prior to procedure, followed by ampicillin 1 g (or amoxicillin 1 g orally) 6 hr later, must be used in combination with gentamicin
Moderate-risk patients: 2 g IV/IM within 30 min prior to procedure
Explanation: