The nurse is assessing an infant and notes that the infant's urine has a mousy or musty odor. What would the nurse suspect?
A) Maple syrup urine disease
B) Tyrosinemia
C) Phenylketonuria
D) Trimethylaminuria
Ans: C
The urine of a child with phenylketonuria has a mousy or musty odor. For the child with maple syrup urine disease, excretions have a maple syrup odor. With tyrosinemia, excretions have a cabbage-like or rancid butter odor. With trimethylaminuria, excretions smell like rotting fish.
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