Test Name: Phosphorous, Blood
Specimen Type: Serum
Specimen Required: 3-5 Cc Yellow Top Gel Vial
Day Performed: Daily
Reporting Time: 8 Hours STAT Reporting Time: 120 MINUTES
Methodology: Beckman Coulter AU480
CLINICAL SIGNIFICANCE:
A higher than normal level (hyperphosphatemia) may be due to many different health conditions. Common causes include:
- Diabetic ketoacidosis
- Hypoparathyroidism
- Kidney damage or failure
- Liver disease
- Too much vitamin D
- Too much phosphate in your diet
- Use of certain medicines such as laxatives that have phosphate in them
A lower than normal level (hypophosphatemia) may be due to:
- Alcoholism
- Hypercalcemia
- Primary hyperparathyroidism
- Too little dietary intake of phosphate
- Very poor nutrition
- Too little vitamin D, resulting in bone problems such as rickets (childhood) or osteomalacia (adult)
References:
- Chonchol M, Smogorzewski MJ, Stubbs JR, Yu ASL. Disorders of calcium, magnesium, and phosphate balance. In: Yu ASL, Chertow GM, Luyckx VA, Marsden PA, Skorecki K, Taal MW, eds. Brenner and Rector’s The Kidney. 11th ed. Philadelphia, PA: Elsevier; 2020: chap 18.
- Klemm KM, Klein MJ. Zhang Y. Biochemical markers of bone metabolism. In: McPherson RA, Pincus MR, eds. Henry’s Clinical Diagnosis and Management by Laboratory Methods. 24th ed. Philadelphia, PA: Elsevier; 2022: chap 16.
- Kliegman RM, Stanton BF, St. Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM. Electrolyte and acid-base disorders. In: Kliegman RM, St. Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM, eds. Nelson Textbook of Pediatric 21st ed. Philadelphia, PA: Elsevier; 2020: chap 68.