pbg…

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what the risks are male urinary system, phb, porphobilinogen, test that measures the amount, pbg in urine, a 24-hour urine sample is needed, to discontinue drugs, interfere, on day 1, urinate, toilet upon arising, collect all subsequent urine, special container, the next 24 hours, on day 2, urinate, container, in the morning upon arising, cap the container, in the refrigerator, a cool place, collection period, label the container, time of completion, an infant, thoroughly wash the area around the urethra, open a urine collection bag, a plastic bag, an adhesive paper on one end, place it on infant, boys, entire penis, in the bag, adhesive attached, skin, girls, bag, over the labia, place a diaper over the infant, bag, infant, checked frequently, bag changed, infant has urinated, bag, active infants, take a couple of attempts, lively infants, displace the bag, making it difficult, obtain the specimen, urine is drained, container, transport, deliver it, upon completion, no special preparation is necessary, collection is taken, infant, a couple of extra collection bags necessary, this test involves only normal urination, no discomfort, this test performed, porphyria, another disorder associated, an abnormal porphobilinogen, pbg, level is suspected, pbg is one link, in the chain of chemical reactions the body uses to to make heme, heme molecule, oxygen-carrying part of hemoglobin, is found in red blood cells, various porphyrins exist, all have the same basic structure, a slightly different chemical appearance, porphyrin molecule goes, several intermediate chemical stages, delta-ala, pbg, uroporphyrin, coproporphyrin, protoporphyrin, to finally yield the end product, heme, each step, an enzyme, the enzymes, deficient, a genetic disease, inhibition by a toxic substance, porphyria results, normal values, random urine, negative test, 24-hour urine, less than 4 mg, milligrams, per 24 hours, increased levels of urinary pbg, liver cancer, hepatitis, lead poisoning, porphyria, several types, no risks, drugs, affect test measurements, aminosalicylic acid, barbiturates, chloral hydrate, chlorpropamide, ethyl alcohol, griseofulvin, morphine, oral contraceptives, phenazopyridine, procaine, sulfonamides.