Approach to precocious puberty Quiz: Ace Your Exams

Get ready to dominate your medical and nursing exams by using our dynamic quizzes to elevate your knowledge and increase your confidence. Whether you're gearing up for the USMLE®, COMLEX®, or your next in-class assessment, Osmosis quizzes tackle key topics in pathology, diagnostics, and treatment approaches. By honing in on clinical readiness and decision-making, we make sure the knowledge you gain empowers you both in the classroom and in real-world practice. Jump in and supercharge your exam prep!

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A 5-year-old boy is brought to the office for evaluation of dark profuse pubic hair and an increase in penile length that has occurred over the past two months. The parents report that he has not had convulsions, visual disturbance, vomiting, headaches, fever, fatigue, or intolerance to cold. Parents report he takes nighttime lavender oil baths to help him sleep. He has no significant past medical history, perinatal history, or family history. He is meeting all appropriate developmental milestones. Temperature is 37°C (98.6°F), pulse is 95/min, respirations are 20/min, and blood pressure is 100/64 mm Hg. Height and weight are at the 60th and 65th percentile, respectively. On genital examination, pubic hair is dark and thick at the base of the penis, stretched penile length is 9 cm, and testicular volume is > 4 mL. There are no testicular masses on palpation. The patient does not have acne, axillary body hair, or café-au-lait spots. Abdomen is soft and non-tender without palpable masses. X-ray of the left hand shows bone age consistent with 9 years of age. Which of the following should be ordered next to help make the diagnosis?  

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