UWorld 1 Flashcards
Following cardiac cath, pt develops fatigue and back pain. There may be neuro signs in the leg that was catheterized. Dx?
hemorrhage of cath site extending to retroperitoneum
What is done in most cases of hemorrhage following cardiac cath?
supportive care
What must be done if neuro signs are pressent in the leg?
immediate decompression of the hematoma
What is the etiologic agent of nasopharyngeal carcinoma?
EBV
What is the diagnostic test of choice for esophageal perforation?
water-soluble esophagram
What are 3 common radiographic findings in esophageal perforation?
pleural effusion (esp. left-sided), pneumothorax, pneumomediastinum
What imaging studies may be used to evaluate devlopmental dysplasia of the hip in an infant? When would you use one test or the other?
US if < 4 mos. old; X-ray if >4 mos old
What three steps should be taken by an ER physician in the case of suspected chid abuse?
- skeletal surey (radiographs)
- contact child protective services
- admit the patient
What is the most common cause of lower GI bleeding in elderly pts?
diverticulosis
Which side of the colon are diverticula more common on?
left/sigmoid
Which side of the colon is more likely to have bleeding diverticula?
right
How is the presentation of thrombosis in the lower limb different than that of occlusion by an embolus?
thrombosis: insidious onset, usu. bilat.
embolus: acute onset, unilat.
Within hours of a car accident, a pt has, tachypnea, tachycardia, and hypoxia. Breath sounds are decreased unilaterally, and CXR shows patchy alveolar infiltrates on that side. Dx?
pulmonary contusion
Which type of shoulder dislocation causes the pt to hold the arm abducted and externally rotated?
anterior
Which type of shoulder dislocation causes the pt to hold the arm abducted and internally rotated?
posterior
