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Test Code:
PHOS

Order Name:
Phosphate

 
Useful For:
Diagnosis and management of a variety of disorders including bone, parathyroid, and renal disease
 
Methodology:
Phosphomolybdate
 
AliasesName:
Phosphate, Blood
PO4, Blood
Inorganic Phosphorus, Blood
Phosphorus, Blood
 
 
 
Test Code:
PHOS

Order Name:
Phosphate

 
Patient Preparation:
Patient should be fasting at least 12 hours.
 
Collection Specimen Or Container:
Blood/ Plain blood (Red top) 6 mL, 1 tube
 
Specimen Testing Type:
Serum, minimum volume 0.5 mL
 
Sub Mission Container:
Plastic vial
 
Rejection Criteria:
Hemolysis: 2+ or above reject 
 
Specimen Stabillity:
Specimen Type Temparature Time
Serum Refrigerated, 2oC to 8oC 4 days
Frozen, -20o 12 month
 
 
 
Test Code:
PHOS

Order Name:
Phosphate

 
Method detail:
Phosphomolybdate
 
Schedule:
Tested daily (24 hours)
 
Turnaround Time:
Collected specimen to report within 1.5 hours (90 mins)
 
Performing Location:
Chemistry, Laboratory Department Tel. 13224
 
Specimen Retention Time:
5 days
 
 
 
Test Code:
PHOS

Order Name:
Phosphate

 
 
Clinical Information:
The majority of the body phosphorus (80% to 85%) is present in the bones as hydroxyapatite. The remainder of the phosphate is present as inorganic phosphorus and phosphate esters. Calcium and phosphorus in serum usually exhibit a reciprocal relationship.
Increased serum phosphorus may occur in hypervitaminosis D, hypoparathyroidism, and renal failure. Reduced serum phosphorus levels are seen in rickets (Vitamin D deficiency), hyperparathyroidism, and Fanconi’s syndrome.
 
Reference Value:
2.3 – 4.7 mg/dL
 
Interpretation:
Hypophosphatemia is relatively common in hospitalized patients. Serum concentrations of phosphate between 1.5 and 2.4 mg/dL may be consider moderately decreased and are not usually associated with clinical signs and symptoms. Levels below 1.5 mg/dL may result in muscle weakness, hemolysis of red cells, coma, and bone deformity and impaired growth.
The most acute problem associated with rapid elevations of serum phosphate levels is hypocalcemia with tetany, seizures, and hypotension. Soft tissue calcification is also an important long-term effect of high phosphorus levels.
 
Clinical Reference:
  1. Manufacturer’s reagent package insert, Architect® Phosphorus, Abbott Laboratories, Abbott Park IL 60064 USA, January 2016.
  2. http://www.mayomedicallaboratories.com (Retrieved: 01 Jan 2019)