Serum Phosphorus
Alternate Names : HPO4-2, Inorganic Phosphate, Phosphorus - Serum, PO4
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Special Considerations
Antacids can bind PO4 and decrease absorption.
Nonpharmacological factors that can affect PO4 measurements include: enemas containing sodium phosphate, excess Vitamin D supplements, and intravenous glucose administration (because PO4 enters cells along with glucose).
Drugs that can increase PO4 measurements include: laxatives containing Na2HPO4 (sodium phosphate), methicillin, and excess Vitamin D or 1,25-dihydroxy Vitamin D.
Veins and arteries vary in size from one patient to another and from one side of the body to the other. Obtaining a blood sample from some people may be more difficult than from others.
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