NRNP 6550 EXAM QNS & ANS 2026/2027(20pages)

1. A patient presents with the lesion shown below. Which of the following drugs should be given as post-exposure prophylaxis (PEP) for this disease? Correct Answer: B. Doxycycline 2. A 45-year-old white woman with clinical findings suggestive of Cushing syndrome has2 elevated late night salivary cortisol levels and 2 elevated urinary free-cortisol tests of220 and 300 (normal 2-50mg/24 hour); her ACTH level is 55 (normal 5-50pg/mL), and her pituitary MRI shows a 3mm adenoma. Which of the followings is the best next course of action? Correct answer: (D) High-dose dexamethasone suppression test (HDDST) and/or corticotropin-releasing hormone (CRH) stimulation test. 3. A female patient with primary hypothyroidism has been stable (normal TSH) on replacement LT4 (dose 1.6μg/kg of body weight) for several years. On annual follow-up, the following laboratory tests are obtained: T4 = 14.1μg/dL (normal 5.0-10.5) and TSH = 23.4μU/mL (normal 0.4-5.5). Which is the most likely diagnosis? Correct answer: (D) Poor compliance this past year, with recent attempt to “catch up” with excessive LT4 intake. 4. Which of the following is the organism most frequently implicated in toxic shock syndrome in women who are using tampons?