A 5-week-old infant born at 36 weeks' gestation is brought to the physician for a well-child examination. Her mother reports that she previously breastfed her for 15 minutes every 2 hours but now feeds her for 40 minutes every 4 hours. The infant has six wet diapers and two stools daily. She currently weighs 3500 g (7.7 lb) and is 52 cm (20.4 in) in length. Vital signs are with normal limits. Cardiopulmonary examination shows a grade 4/6 continuous murmur heard best at the left infraclavicular area. After confirming the diagnosis via echocardiography, which of the following is the most appropriate next step in management of this patient?
ASurgical ligation
BIndomethacin infusion
CReassurance and follow-up
DPercutaneous device closure
EProstaglandin E1 infusion
A 2-week-old newborn is brought to the physician for a follow-up examination. He was born at term and the pregnancy was uncomplicated. His mother says he has been feeding well and passing adequate amounts of urine. He appears healthy. He is at the 60th percentile for length and 40th percentile for weight. His temperature is 37.3°C (99.1°F), pulse is 130/min, respirations are 49/min and blood pressure is 62/40 mm Hg. A thrill is present over the third left intercostal space. A 5/6 holosystolic murmur is heard over the left lower sternal border. An echocardiography shows a 3-mm membranous ventricular septal defect. Which of the following is the most appropriate next step in management?
AIndomethacin therapy
BCardiac catheterization
CAmoxicillin therapy
DProstaglandin E1 therapy
EOutpatient follow-up
A 9-year-old boy is brought to the office due to exertional dyspnea and fatigability. He tires easily when walking or playing. His parents say that he was diagnosed with a congenital heart disease during his infancy, but they refused any treatment. They do not remember much about his diagnosis. The patient also had occasional respiratory infections throughout childhood that did not require hospitalization. He takes no medications. The patient has no family history of heart disease. His vital signs iclude: heart rate 98/min, respiratory rate 16/min, temperature 37.2°C (98.9°F), and blood pressure of 110/80 mm Hg. Physical examination shows toe cyanosis and clubbing but no finger abnormalities. Cardiac auscultation reveals a continuous machine-like murmur. All extremity pulses are full and equal. Which of the following is the most likely diagnosis?
ATetralogy of Fallot
BCoarctation of the aorta
CVentricular septal defect
DAtrial septal defect
EPatent ductus arteriosus
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