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A 67-year-old man presents with progressive lower urinary tract symptoms (LUTS) including urinary hesitancy, weak stream, nocturia, and incomplete bladder emptying for 8 months. Symptoms now interfere with sleep and daily activities. Digital rectal exam reveals a smooth, enlarged prostate. PSA is within normal range for age. He has no history of hypotension and takes no interacting medications. Which is the most appropriate initial management?

A 41-year-old patient presents with acute flank pain and is diagnosed with a 3-mm distal ureteral stone on imaging. The patient is afebrile, pain is controlled with oral analgesics, creatinine is normal, and there is no hydronephrosis. Which management plan is most appropriate at this time?

A 61-year-old man with erectile dysfunction also reports reduced sexual desire, fatigue, and decreased morning erections. Which test is most appropriate to evaluate a potentially reversible contributor?

A man treated with radiation therapy for prostate cancer now has a rising PSA level 18 months after treatment completion. What is the appropriate next diagnostic step?

A 72-year-old man presents with urinary hesitancy, weak stream, nocturia, and recurrent urinary tract infections. His urine output pattern alternates between oliguria and periods of polyuria. Which mechanism best explains this presentation?

A 46-year-old woman reports urine leakage when she coughs, laughs, or lifts heavy objects. She denies urgency, frequency, dysuria, or nocturia. Which type of urinary incontinence is most likely?

A 29-year-old patient presents with a painless genital ulcer that appeared approximately 3 weeks after unprotected sexual contact. Physical examination reveals a single, firm, non-tender ulcer with clean borders and no purulent drainage. The clinician suspects syphilis. Which is the most appropriate next step in management?

A man presents with chronic pelvic pain, urinary frequency, and pain with ejaculation for 8 months. Urine cultures are repeatedly negative. Which prostatitis category is most likely?

Which medication is specifically highlighted as a common drug contributing to intrinsic acute kidney injury (AKI) when used chronically?

A 7-month-old infant presents with fever, irritability, and poor feeding but no respiratory symptoms. Which statement best reflects appropriate clinical reasoning?