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A 35-year-old man comes to the physician for a follow-up appointment. His serum parathyroid hormone (PTH) and fecal calcium are represented by the magenta dot on the following diagram. Which …
HY USMLE Q #836 – Endocrine See Full Post
A 49-year-old man comes to the physician for a follow-up appointment. A biopsy specimen from the esophagus is shown. Which of the following is the most likely diagnosis? Irreversible; …
HY USMLE Q #835 – Pathology See Full Post
A 3-month-old boy born at 28 weeks’ gestation has a 2-day history of bloody stools. Abdominal examination shows reduced bowel sounds. Laboratory studies show leukocytosis and decreased bicarbonate. Which of …
HY USMLE Q #834 – Gastro See Full Post
A 17-year-old boy is brought to the physician by his father for a 3-month history of intermittent blood in the stool. Past medical history is unremarkable. There is no history …
HY USMLE Q #822 – Gastro See Full Post
A 54-year-old woman comes to the ED because of severe abdominal pain for the past 2 hours. She has a history of polycythemia vera. Physical examination shows mild scleral icterus. …
HY USMLE Q #813 – Gastro See Full Post
A 44-year-old woman has had loose stools and orthostatic hypotension for 1 year. She has a 30-year history of type I diabetes mellitus. Which of the following is the most …
HY USMLE Q #811 – Gastro See Full Post
A 24-year-old woman is managed in hospital for ruptured appendicitis and sepsis. Blood pressure is stable. Exploratory laparoscopy shows a collection of pus. Gram stain shows neutrophils, gram-positive rods, gram-positive …
HY USMLE Q #796 – Microbiology See Full Post
A 49-year-old man is brought to emergency by his wife 30 minutes following abrupt-onset abdominal pain where he feels like he was “kicked in the abdomen.” He has a history …
HY USMLE Q #790 – Gastro See Full Post
A 69-year-old man is brought to emergency because of severe abdominal pain for the past 4 hours. He has a history of chronic atrial fibrillation. Abdominal examination shows mild diffuse …
HY USMLE Q #782 – Pathology See Full Post
A 33-year-old man comes to the physician because of a 3-month history of itchy lesions on his elbows. Physical examination shows clusters of vesicular lesions on the elbows. Hemoglobin is …
HY USMLE Q #777 – Dermatology See Full Post