View source for WBR0011

{{WBRQuestion
|ExamType=USMLE Step 2 CK
|MainCategory=Pediatrics
|SubCategory=Cardiovascular, Pediatrics
|MainCategory=Pediatrics
|SubCategory=Cardiovascular, Pediatrics
|MainCategory=Pediatrics
|SubCategory=Cardiovascular, Pediatrics
|MainCategory=Pediatrics
|MainCategory=Pediatrics
|SubCategory=Cardiovascular, Pediatrics
|MainCategory=Pediatrics
|SubCategory=Cardiovascular, Pediatrics
|MainCategory=Pediatrics
|SubCategory=Cardiovascular, Pediatrics
|MainCategory=Pediatrics
|SubCategory=Cardiovascular, Pediatrics
|MainCategory=Pediatrics
|MainCategory=Pediatrics
|SubCategory=Cardiovascular, Pediatrics
|Prompt=A 13-year-old boy is brought to the clinic for a fever of 5 days duration accompanied by a diffuse rash. His mother states that the fever has been as high as 103.0°F (39.4°C) and she has kept him out of school because of this. His physical exam is notable for a diffuse morbilliform rash over his trunk and extremities, which also becomes confluent in the groin. Both scleras are infected and his tongue is red and bumpy on appearance. Notable lymphadenopathy is present in the anterior and posterior cervical chains. What is the most concerning possible complication in this patient?
|Explanation=A known complication of Kawasaki syndrome is aneurysms usually confined to medium-sized vessels and classically those located in the heart. Careful diagnostic workup must be initiated upon identification of disease with follow-up exams 6-8 weeks after resolution of disease.
|AnswerA=Encephalitis.
|AnswerB=Acute tubular necrosis.
|AnswerC=Interstitial nephritis.
|AnswerD=Loss of pulmonary surfactant and subsequent pulmonary failure.
|AnswerE=Coronary aneurysms.
|RightAnswer=E
|Approved=No
|Answer=Encephalitis.,Acute tubular necrosis.,Interstitial nephritis.,Loss of pulmonary surfactant and subsequent pulmonary failure.
}}