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Urinalysis and Body Fluids 6th Edition by Majorie DiLorenzo, Susan Strasinger
Edition 6ISBN: 0803641044Urinalysis and Body Fluids 6th Edition by Majorie DiLorenzo, Susan Strasinger
Edition 6ISBN: 0803641044An anemic patient is suspected of having lead poisoning.
a. What historical urine test was requested?
b. What should be added to the urine before testing?
c. What element of heme synthesis would this be testing for?
d. Name another substance that can be tested for lead poisoning.
e. What element of heme synthesis would this test for?
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a.
Ehrlich reaction urine test was requested.
• Screening test for porphyrinuria uses Ehrlich reaction to detect porphobilinogen
• The three porphyrins are uroporphyrin, Coproporphyrin, and protoporphyrin
• As uroporphyrin (primary porphyrin), porphobilinogen, and ALA (porphyrin precursors) are much soluble, they appear in urine
• But Ehrlich reaction detects only ALA and porphobilinogen
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