A 21-year-old student presents with a chief complaint of fatigue, headache, anorexia, and a runny nose, all of which began about 2 weeks ago. She started taking vitamins and over-the-counter (OTC) cold preparations but feels worse.
The smell of food makes her nauseated. Her boyfriend had mononucleosis about a month ago, and she wonders if she might have it also. An examination reveals cervical adenopathy and enlarged liver and spleen. Which of the following laboratory tests would be most helpful in the differential diagnosis at this point?
a. Stool culture
b. Liver enzymes
c. Anti-HDV (antibody to hepatitis D virus)
d. Thyroid-stimulating hormone (TSH)
Question 2
On further questioning, the 21-year-old patient with the chief complaints of fatigue, headache, anorexia, and a runny nose explains that she is sexually active only with her boyfriend, does not use injectable drugs, and works as an aide in a day-care cent
Which of the following tests would be most helpful in confirming your diagnosis?
a. HAV IgM c. Anti-HAcAg
b. HAV IgG d. Anti-HAsAg
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