A 6-year-old boy presents to his pediatrician accompanied by his mother for evaluation of a rash. The rash appeared a little over a week ago, and since that time the boy has felt tired. He is less interested in playing outside, preferring to remain indoors because his knees and stomach hurt. His past medical history is significant for an upper respiratory infection that resolved uneventfully without treatment 2 weeks ago. Temperature is 99.5°F (37.5°C), blood pressure is 115/70 mmHg, pulse is 90/min, and respirations are 18/min. Physical exam shows scattered maroon macules and papules on the lower extremities. The abdomen is diffusely tender to palpation. There is no cervical lymphadenopathy or conjunctival injection. Which of the following will most likely be found in this patient?
ACoronary artery aneurysms
BLeukocytoclastic vasculitis
CThrombocytopenia
DMitral regurgitation
EOccult malignancy
A 4-year-old boy is brought to the emergency department by his mother with a rash on his trunk, malaise, and fever with spikes up to 38.5°C (101.3°F) for the past 2 weeks. The patient's mother says she tried giving him Tylenol with little improvement. Past medical history includes a spontaneous vaginal delivery at full term. The patient's vaccines are up-to-date and he has met all developmental milestones. On physical examination, his lips are cracking, and he has painful cervical lymphadenopathy. The rash is morbilliform and involves his trunk, palms, and the soles of his feet. There is fine desquamation of the skin of the perianal region. Which of the following anatomical structures is most important to screen for possible complications in this patient?
AMitral valve
BKidneys
CGallbladder
DCoronary artery
EPylorus
A 5-year-old girl is brought to the emergency department by her father due to a 6-day history of fevers and irritability. His father reports that the fevers have ranged from 101-104°F (38.3-40°C). He tried to give her ibuprofen, but the fevers have been unresponsive. Additionally, she developed a rash 3 days ago and has refused to wear shoes because they feel "tight." Her father reports that other than 2 ear infections she had when she was younger, the patient has been healthy. She is up-to-date on her vaccinations except for the vaccine boosters scheduled for ages 4-6. The patient's temperature is 103.5°F (39.7°C), blood pressure is 110/67 mmHg, pulse is 115/min, and respirations are 19/min with an oxygen saturation of 98% O2 on room air. Physical examination shows bilateral conjunctivitis, palpable cervical lymph nodes, a diffuse morbilliform rash, and desquamation of the palms and soles with swollen hands and feet. Which of the following is the next step in management?
AAcetaminophen
BHigh dose aspirin
CIVIG and high-dose aspirin
DNafcillin
EPenicillin V
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