A 72-year-old man is newly diagnosed with Parkinson disease after developing a resting tremor, masked facies, bradykinesia, cogwheel rigidity, and a shuffling gait. His symptoms interfere with dressing and eating.Which medication is considered first-line symptomatic therapy?

A 46-year-old carpenter presents with progressively worsening pain over the lateral aspect of his dominant elbow for the past 3 months. He denies trauma but reports spending most of his workday using screwdrivers, hammers, and power drills. The pain worsens when lifting objects with his palm facing downward and when shaking hands. On examination, there is point tenderness over the lateral epicondyle. Pain is reproduced with resisted wrist extension, while elbow range of motion is full without swelling or erythema. Sensation is intact throughout the upper extremity.What is the most appropriate initial management for this patient?

A 59-year-old man reports progressive fatigue, drenching night sweats, and a 15-pound unintentional weight loss over three months. Physical examination reveals a firm, painless 2.5-cm left cervical lymph node. CBC demonstrates mild normocytic anemia.Which diagnosis should receive the highest priority in the differential diagnosis?

A 46-year-old man experiences his first generalized tonic-clonic seizure. He returns to baseline within 30 minutes, and the neurologic examination is normal.Which diagnostic studies are most appropriate?

A 61-year-old man currently smokes one pack of cigarettes daily and has accumulated a 35-pack-year smoking history. He denies cough, weight loss, or hemoptysis and asks whether he should have a chest x-ray because several friends were recently diagnosed with lung cancer.Which recommendation is most appropriate?

A 30-year-old man with asthma reports using his albuterol inhaler four to five days each week and awakening with cough twice each month. He demonstrates proper inhaler technique and reports adherence to his prescribed low-dose inhaled corticosteroid.What change in management is supported by current GINA recommendations?

A 48-year-old woman with a history of hypertension, dyslipidemia, and obesity (BMI 37 kg/m²) returns to the clinic 4 months after starting semaglutide as an adjunct to nutrition counseling, increased physical activity, and behavioral modification. She reports taking the medication as prescribed and has experienced mild nausea that has improved over time. Since starting therapy, she has lost 6% of her initial body weight, her blood pressure has improved, and she reports increased energy. She asks, “How do you know if this medication is working?” Which response by the nurse practitioner is most accurate?

A 30-year-old woman presents with fatigue, intermittent joint pain involving both hands, oral ulcers, and a facial rash that worsens after spending time outdoors. She reports increased hair loss over the past several months. Physical examination demonstrates mild swelling of the MCP joints and an erythematous malar rash that spares the nasolabial folds.Which laboratory study is the best initial screening test?

A patient taking metformin develops persistent diarrhea despite dose titration. What is the most appropriate next step?

A 52-year-old woman presents with progressively worsening fatigue over the past six months. She reports becoming short of breath when climbing one flight of stairs and has noticed brittle fingernails and increasing difficulty completing her daily walks. She has a history of heavy menstrual bleeding but has not seen a gynecologist in several years.Physical examination reveals conjunctival pallor. Cardiac examination demonstrates a soft systolic flow murmur. No lymphadenopathy or splenomegaly is noted.Laboratory results are:Hemoglobin 8.8 g/dLHematocrit 28%MCV 71 fLMCH 22 pgRDW 19%Platelets 415,000/mm³Which additional laboratory study would best confirm the suspected diagnosis?