The mother of a 3-month-old infant reports that he turned bl…

The mother of a 3-month-old infant reports that he turned blue and seemed to have fast, labored breathing after vigorous crying. He would relax and his color improved. On physical exam, the PNP notes the mucous membranes of the lips and mouth appear mildly cyanotic. A systolic murmur is heard best at the mid to upper left sternal border. Vital signs are normal with normal peripheral pulses. There is no organomegaly. The MOST likely diagnosis is which of the following?

An adolescent with type I diabetes returns for a follow-up v…

An adolescent with type I diabetes returns for a follow-up visit after his annual check-up last week. You note that his serum glucose is elevated and his glycosylated hemoglobin (hemoglobin A1C) is 16.7%. This finding suggests poor control of his diabetes over at least which of the following time periods?