May 3, 2021


A Guatemalan child with a history of meconium ileus is brought to a  clinic because of a chronic cough. The mother notes a history of   respiratory tract infections and bulky, foul-smelling stools.    After assessment of the respiratory tract illness, the physician    should also look for signs of
May 2, 2021


A 4-year-old boy presents to the emergency room with muscle spasms. His  past medical history is significant for recurrent infections and neonatal   seizures. Evaluation of his serum electrolytes reveals hypocalcemia.    This patient would be most susceptible to which of the following     diseases?
May 2, 2021


To provide anesthesia to a patient in the third stage of labor, an  obstetrician palpates the ischial spine transvaginally, then injects a   local anesthetic. Injection of anesthetic at this approximate location    will most likely block which of the following nerves?
May 2, 2021


A 45-year-old male presents to the physician with muscle cramps,  perioral numbness, and irritability over the past 3 to 4 months. Lab   results reveal hypocalcemia, normal albumin level, and hyperphosphatemia   . Parathyroid hormone level is decreased. Alkaline phosphatase level is    normal. Which of the following is most likely causing this clinical    scenario?
May 2, 2021


A healthy, 37-year-old, recently divorced woman loses her job at th e auto factory. She picks up her three young children from the factory  day care center and gets into an automobile accident on the way home.   Her 5-year-old son, who was not wearing a seat belt, sustains a severe    head injury. The woman was not hurt in the accident, but is     hyperventilating as she sits in the waiting room at the hospital.      She complains of feeling faint and has blurred vision. Which of       the following is decreased in this woman?
May 2, 2021


A surgeon performs an exploratory laparotomy, producing a large incision  in the patient's abdomen. Poor blood supply to which of the following   is most likely to cause problems during the healing process?
May 2, 2021


Which of the following developmental abnormalities might account for  unexplained small intestinal bleeding?
May 2, 2021


A 25-year-old woman with sickle cell anemia complains of steady pain  in her right upper quadrant with radiation to the right shoulder,   especially after large or fatty meals. Her physician diagnoses   gallstones. Of which of the following compounds are these stones    most likely composed?
May 2, 2021


A 32-year-old, blood type A positive male receives a kidney transplant  from a blood type B positive female donor with whom he had a 6-antigen HLA   match. Once the kidney is anastomosed to the man's vasculature, the   transplant team immediately begins to observe swelling and interstitial    hemorrhage. After the surgery, the patient developed fever and    leukocytosis and produced no urine. Which of the following is the most likely explanation?
May 2, 2021


A 32-year-old pregnant woman is told by her physician to avoid taking  aspirin. Use of aspirin is contraindicated, especially during the last   part of pregnancy, because aspirin affects which of the following   hematologic parameters?