A 36-year-old male is taken to the emergency room after jumping from a building. Bilateral fractures to the femur were stabilized at the scene by emergency medical technicians. The patient is lucid upon questioning and his vitals are stable. Pain only at his hips was elicited. Cervical exam was not performed. What is the best imaging study for this patient?
AAP and lateral radiographs of hips
BLateral radiograph (x-ray) of hips
CMagnetic resonance imaging (MRI) of hips, knees, lumbar, and cervical area
DAnterior-posterior (AP) and lateral radiographs of hips, knees, lumbar, and cervical area
EComputed tomography (CT) scan of cervical spine, hips, and lumbar area
A 3-year-old girl is brought to the physician by her parents because of a barking cough, a raspy voice, and noisy breathing for the last 3 days. Five days ago, she had a low-grade fever and runny nose. She attends daycare. Her immunizations are up-to-date. Her temperature is 37.8°C (100°F) and respirations are 33/min. Physical examination shows supraclavicular retractions. There is a high-pitched sound present on inspiration. Examination of the throat shows erythema without exudates. Which of the following is the most likely location of the anatomic narrowing causing this patient's symptoms?
ABronchioles
BPharynx
CSubglottic larynx
DDistal trachea
EEpiglottis
A 25-year-old man presents to the clinic with a midline swelling in his neck. He is unsure about when it appeared. He denies any difficulty with swallowing or hoarseness. His past medical history is insignificant. On physical examination, there is a 1 cm x 2 cm firm mildly tender nodule on the anterior midline aspect of the neck which moves with deglutition and elevates with protrusion of the tongue. Which of the following is the most likely embryologic origin of the nodule in this patient?
AMidline endoderm of the pharynx
B1st and 2nd pharyngeal arch
CThe branchial cleft
D4th pharyngeal arch
E4th pharyngeal pouch
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