A patient presents stating, "I've been told I need to take a medicine before I have a deep dental cleaning." Which of the following patients requires antimicrobial prophylaxis prior to this dental visit?

A. A 28-year-old female taking combined oral contraceptives with a history of the murmur of mitral valve prolapse

B. An 18 year old with a physiologic murmur and a history of ACL repair

C. A 64 year old male with hypertension, type 2 diabetes, dyslipidemia, and an A1c of 9.5%

D. A 72-year-old woman with a prosthetic aortic valve

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