John Wilson is a 74-year-old retired schoolteacher. He is 5'8" tall and weighs 136 pounds. His wife died nine months ago. During a routine visit to the doctor, it was noted that his weight had decreased 21 pounds since his visit a year ago. Mr. Wilson does not have any medical problems, though he does report feeling depressed and lonely. The physician ordered a panel of lab tests including
hemoglobin, hematocrit, and albumin, which all were low.
Mr. Wilson's low albumin level may indicate a depletion of:
a. body fat.
b. body proteins.
c. vitamin D.
d. iron.
b
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