HY USMLE Q #1072 – Metabolic / Electrolytes
A 50-year-old woman comes to the physician for a follow-up appointment. Serum studies are shown. Calcium …
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HY USMLE Q #1066 – Biochemistry / Neuro
A 46-year-old man is brought to emergency by police after being found on a park bench disoriented. He is unkempt. Physical examination shows ataxia, confusion, and left-sided ophthalmoplegia. The deficient …
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HY USMLE Q #1027 – Hematology
A 24-year-old man comes to the physician for a routine health maintenance examination. He has no past medical history. Physical examination shows vitiligo on the hands. He does not adhere …
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HY USMLE Q #990 – Endocrine
An 8-year-old girl is brought to emergency for a 2-hour history of confusion and lethargy. She says she is very thirsty. One week ago she recovered from an upper respiratory …
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HY USMLE Q #975 – Hematology
A 34-year-old man is evaluated in hospital. A blood smear is shown. Which of the following is the most likely explanation for these findings? Autoimmune hemolysis DNA synthesis …
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HY USMLE Q #940 – Biochemistry
An 8-year-old girl is brought to the physician because of a 2-week history of frequent thirst and urination. She has lost 5 pounds during this time. Serum glucose is 300 …
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HY USMLE Q #914 – Biochemistry
A 2-year-old boy is brought to the pediatrician for developmental delay. Physical examination shows coarse facial features and joint contractures. Laboratory tests show elevated levels of lysosomal enzymes in the …
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HY USMLE Q #893 – Biochemistry
A 5-day-old boy is brought to the obstetrician following bleeding from the umbilical area. He was born at home-born. Physical examination shows a small amount of fresh blood oozing from …
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HY USMLE Q #880 – Hematology / Biochemistry
A 32-year-old woman comes to the physician for a 3-day history of blistering lesions on her face, arms, and hands. She has had recurrent episodes of such lesions for many …
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HY USMLE Q #854 – Pulmonary
A 15-year-old boy has had wheezing and difficulty breathing for the past 10 minutes while on the soccer field. He has a history of eczema in the summer. Which of …
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