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A 17-year-old boy comes to the physician for a routine health maintenance examination. He began a vegan diet 5 months ago. He takes no dietary supplements or medications. Vitals are …
HY USMLE Q #657 – Nutrition See Full Post
A 10-year-old boy has had four episodes of vomiting over the past 24 hours. During the past 8 weeks, he has had increased urinary frequency and has been drinking large …
HY USMLE Q #656 – Biochemistry See Full Post
A 25-year-old man comes to the physician for a health maintenance examination. He has a 1-year history of worsening auditory hallucinations and has recently been started on aripiprazole. Which of …
HY USMLE Q #643 – Biochem / Pharm See Full Post
A 14-year-old girl is brought to the emergency department because of painful blisters on her trunk for the past 24 hours. She has no significant past medical history. She has …
HY USMLE Q #641 – Extracellular matrix proteins See Full Post
A 27-year-old woman comes to the physician for a 6-month history of abnormal periods. BMI is 30. Physical examination shows mild acne on the face and shoulders. Which of the …
HY USMLE Q #635 – Biochemistry / Repro See Full Post
A 24-year-old male partakes in a research study in which it is found that his intra-erythrocytic carbonic anhydrase levels are decreased. Which of the following is most likely to be …
HY USMLE Q #626 – Hematology / Biochemistry See Full Post
A 12-year-old boy is brought to the emergency department for a 1-hour history of difficulty breathing. His symptoms do not improve significantly with albuterol. After intravenous methylprednisolone is administered, marked …
HY USMLE Q #611 – Biochemistry See Full Post
A 63-year-old man is admitted to hospital for acute exacerbation of COPD. He is disoriented and has wide-based ataxic gait. Examination shows weakness of abduction of both eyes and nystagmus …
HY USMLE Q #603 – Biochemistry See Full Post
A 32-year-old man comes to the physician for evaluation of recurrent episodes of bronchitis and sinusitis throughout his life. Cardiac examination shows a point of maximal impulse at the 4th …
HY USMLE Q #602 – Biochemistry / Molecular Bio See Full Post
A 3-year-old boy is brought to the physician for a routine health maintenance examination. He has history of slow motor development, waddling gait, and calf muscle enlargement. Serum creatine kinase …
HY USMLE Q #601 – MSK/Anatomy See Full Post