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A 72-year-old woman is brought in by ambulance after a 20-minute history of crushing central chest pain. ECG shows ST-elevations in leads V2-4. Blood pressure has decreased from 150/90 …
Audio Qbank – Q303 – A 72F with crushing chest pain See Full Post
A 48-year-old man is brought to the physician by his wife for a 2-week history of personality change and increasing confusion. He has no significant past medical history. Vitals …
Audio Qbank – Q296 – A 48M with toxic exposure See Full Post
A researcher is conducting a study on a knockout rabbit that has a deficiency of erythrocytic carbonic anhydrase. Which of the following combinations of findings is most likely to …
Audio Qbank – Q291 – A hematologic study See Full Post
Which of the following is directly required for the synthesis of glucosamine from fructose-6-phosphate? 6-phosphogluconolactone Cystathionine Glutamate Glutamine N-acetylglutamate — Cut-to-the-chase Answer (0:32): — HY USMLE Answer (3:57):
Audio Qbank – Q284 – Synthesis of biochemical substrates See Full Post
A 40-year-old man presents to the physician because of a two-year history of coarsening facial features and an increased foot and hand size. Blood pressure is 140/90. Serum studies …
Audio Qbank – Q281 – A 40M with coarsening facial features See Full Post
A 26-year-old woman runs a half-marathon as part of her training program. She has consumed nothing but water during the course of her exercise. Which of the following combinations …
Audio Qbank – Q279 – A 26F has some enzymes analyzed See Full Post
A 24-year-old man finishes a 10-mile run. He consumed nothing but water during the course of his exercise. Which of the following combinations best reflects his enzyme activity status …
Audio Qbank – Q278 – A 24M undergoes enzyme analysis See Full Post
A 15-year-old boy has a 4-month history of progressive shortness of breath with exertion, muscle weakness, and worsening exercise tolerance. Vitals are within normal limits. Physical examination shows bilateral …
Audio Qbank – Q268 – A 15M with muscle weakness See Full Post
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HY Biochemistry See Full Post
A 20-year-old woman presents to the physician because of a one-week history of fatigue. Laboratory studies show: Hb 9.4 g/dL Hct 28.2% RBC 2,3-bisphosphoglycerate 9000 nmol/mL (N = 4100) …
Audio Qbank – Q260 – A 20F with an enzyme deficiency See Full Post