A 16-year-old afebrile, otherwise healthy female presents with a 4-day history of right ear pain. She says she has spent a fair amount of time swimming recently. Traction on the pinna causes pain. The erythema and inflammation is limited to the ear canal but there is too much edema to easily visualize the tympanic membrane. Which one of the following would be the most appropriate treatment?  (check one)

An obese 10-year-old male with tonsillar hypertrophy is brought to your office because of snoring. There is no history of recent or past visits for tonsillitis. Polysomnography shows moderate obstructive sleep apnea syndrome. Which one of the following is the treatment of choice for this patient?  (check one)

For which type of renal calculus is acidification of the urine indicated?  (check one)

An 11-year-old male is brought to your office for evaluation of bilateral posterior heel pain that has occurred for the past few months. He plays basketball and soccer several times a week and the pain begins several minutes into each of these activities. There is no pain at rest or with walking. The patient has not noticed any numbness, tingling, or weakness. On examination you find no swelling or tenderness of the heel or Achilles tendon. Reflexes, strength, and range of motion at the ankle are intact, but he does have bilateral posterior heel pain when you passively dorsiflex the ankles. Which one of the following is the most likely diagnosis?  (check one)

For most patients, which one of the following is the most effective treatment for anemia of chronic disease?  (check one)

A 30-year-old female complains of dysmenorrhea, pelvic pain, and dyspareunia. Which one of the following would be appropriate to detect endometriosis?  (check one)

A 4-week-old white male is brought to your office with a 2-week history of increasing dyspnea,cough, and poor feeding. The child appears nontoxic and is afebrile. On examination you note conjunctivitis, and a chest examination reveals tachypnea and crackles. A chest film shows hyperinflation and diffuse interstitial infiltrates and a WBC count reveals eosinophilia. What is the most likely etiologic agent?   (check one)

A 14-year-old male has open and closed comedones without evidence of surrounding inflammation on his face and upper back. Which one of the following is the most appropriate initial treatment?  (check one)

A 13-year-old African-American male is brought to your office by his mother for a limp that she has noticed for about 1 week. The patient admits to vague right-sided hip and knee pain present only with activity. He says the pain has never awakened him from sleep and is never present at rest. Neither the mother nor the patient has noticed any systemic symptoms such as fever, night sweats, weight loss, or appetite changes. There is no recent history of trauma. On examination the patient’s weight is in the 90th percentile and his height is in the 50th percentile. He has an antalgic gait. Examination of the left hip is normal. Examination of the right hip is significant for decreased internal rotation. The right hip externally rotates involuntarily with passive flexion. There is no external deformity and no skin changes are noted. He has a negative FABER test. Palpation of the bursa and bone does not elicit pain. Examination of both knees is normal. Plain radiographs confirm your clinical impression.

Which one of the following is the most appropriate next step in the management of this patient?  (check one)