The infant should be checked frequently and the bag changed after the infant has urinated into the bag. The urine is drained into the container for transport to the laboratory. Deliver it to the laboratory or your health care provider as soon as possible upon completion. If the collection is being taken from an infant, a couple of extra collection bags may be necessary. The most important function of porphyrins is as components of heme.
Oxygen binds to the iron in the heme molecules.
Various kinds of porphyrins exist with the same basic structure, but with slightly different chemical appearance. The major biochemical pathway includes conversions from porphyrins to delta-ALA , then to PBG , then uroporphyrin, then coproporphyrin, then protoporphyrin, and finally into the end product, heme. Each step requires the presence of an enzyme . Drugs that can affect test measurements include aminosalicylic acid, barbiturates , chloral hydrate , chlorpropamide , ethyl alcohol, griseofulvin, morphine, oral contraceptives , phenazopyridine, procaine, and sulfonamides. The information provided herein should not be used for diagnosis or treatment of any medical condition.