A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Phosphorus
Test CodeAlias/See Also
CPT Codes
84100
Preferred Specimen
Serum (gold top) tube
Minimum Volume
Other Acceptable Specimens
Instructions
This test is for Phosphorus measurement on Plasma or Serum. For Phosphorus measurement on Urine, order URPHOS. For Phosphorus measurement on Body Fluids, order MISP.
Transport Container
Serum (gold top) tube or Lithium Heparin Plasma (green top) tube
Transport Temperature
Specimen Stability
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Methodology
Colorimetric
Setup Schedule
24 hours/day, 7 days/week
Report Available
Reference Range
Birth - 1 Month: 3.5 - 8.6 mg/dL
1 Month - 2 Years: 4.5 - 6.7 mg/dL
2 - 16 Years: 4.5 - 5.5 mg/dL
16 Years - Adult: 2.5 - 4.5 mg/dL
Clinical Significance
Phosphorus, as phosphate, is distributed throughout the body. Causes of high serum phosphorus include dehydration, hypoparathyroidism, hypervitaminosis D, metastases to bone, sarcoidosis, pulmonary embolism, renal failure, and diabetes mellitus with ketosis. Low serum phosphorus is found in primary hyperparathyroidism and other causes of serum calcium elevation, sepsis, vitamin D deficiency, renal tubular disorders, chronic hemodialysis, vomiting, and occasionally with decreased dietary phosphate intake.
This test is for Phosphorus measurement on Plasma or Serum. For Phosphorus measurement on Urine, order URPHOS. For Phosphorus measurement on Body Fluids, order MISP.