A 32-year-old mother from a poor rural county gives birth to a male child. Based on her circumstances, she sought almost no prenatal care, visiting a physician only once when she first thought she was pregnant. This child is born with a catastrophic developmental defect associated with a failure of the anterior neuropore to close. Which of the following most specifically designates this developmental failure? (A) Anencephaly (B) Dermal sinus (C) Encephalocele (D) Meningocele (E) Meningomyelocele
A 7-year-old boy arrives at the emergency room in acute distress. Over the past 3 to 4 days he has become progressively ill with generalized fatigue and mild, mid-abdominal pain that have become steadily worse. On physical examination he has a maculopapular rash on his thighs and feet with some spread of the rash to his buttocks. The rash does not blanch and the some lesions near the ankles look petechial or bruised. His temperature is 39.0 C(102.2 F) and he is drawing his knees to his chest for relief of his stomach pains. He is nauseated and vomited once before coming to the hospital. He has semi-soft dark stool, which is guaiac-positive. The boy has not voided since early morning and cannot provide a urine sample. The doctor determines that he is 10% dehydrated and asks the nurse to start intravenous fluids. Which of the following is the most likely diagnosis? A. Pancreatitis B. Rocky Mountain spotted fever C. Nephrotic syndrome D. Henoch-Schönlein Purpura E. ...