A 22-year-old sexually active male presents to his primary care physician with painful urination and urethral discharge. Gram stain of discharge fluid shows gram-negative diplococci. He is given ceftriaxone for gonococcal infection. What additional medication, if any, should he be given?

A 22-year-old sexually active male presents to his primary care physician with painful urination and urethral discharge. Gram stain of discharge fluid shows gram-negative diplococci. He is given ceftriaxone for gonococcal infection. What additional medication, if any, should he be given?

A 65-year-old man who has already suffered one myocardial infarction because of extensive atherosclerosis is interested in modifying his risk for a second cardiac event. In terms of lipoproteins, which of the following should be modified to reduce the atherogenicity potential?

A 32-year-old G2P1 woman in her third trimester presents to the ambulatory care clinic with dysuria and urgency. Urine is nitrite positive and leukocyte esterase positive. A drug commonly used to treat urinary tract infections is trimethoprim-sulfamethoxazole, but the physician is reluctant to use it. What risk is the physician worried about?

A 23-year-old woman who underwent a laparoscopic appendectomy is later found to have a wound infection. A culture grows methicillin-resistant Staphylococcus aureus (MRSA). What is the principle mechanism this strain uses to avoid the bactericidal properties of methicillin and methicillin-related drugs?

A 43-year-old woman who is obese undergoes laparoscopic cholecystectomy following repeated episodes of right upper quadrant pain caused by cholelithiasis. Over the next 48 h, she is found to have an MRSA wound infection. Her physician administers daptomycin. Which of the following laboratory values should she follow most closely as a result of daptomycin administration?