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Physiology

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Endocrinology

Question
2 out of 7
 

Which of the following is the principal metabolite in norepinephrine metabolism excreted in urine:



A Metanephrine
B Homogentisic acid

C Aspartic acid
D Vanillylmandelic acid

Ans. D Vanillylmandelic acid

Epinephrine and nor-epinephrine are metabolized to inactive products by either oxidation or methylation. VANILLYLMANDELIC ACID is the most plentiful catecholamine metabolite found in urine.