07-26-2006, 12:19 AM
A photosensitive individual who has uroporphyrin in the urine most likely has which of the following?
A) Deficiency of coproporphyrinogen oxidase
B) Deficiency of uroporphyrinogen I synthetase
C) Deficiency of uroporphyrinogen decarboxylase
D) Inhibition of ferrochelatase and delta-aminolevulinic acid dehydrase
E) Overexpression of uroporphyrinogen I synthetase
A) Deficiency of coproporphyrinogen oxidase
B) Deficiency of uroporphyrinogen I synthetase
C) Deficiency of uroporphyrinogen decarboxylase
D) Inhibition of ferrochelatase and delta-aminolevulinic acid dehydrase
E) Overexpression of uroporphyrinogen I synthetase