Phosphorus, Inorganic

Additional Information:

UFHPL Epic order code: LAB113

CPT Code(s):

84100

Specimen Requirements:

Type: Serum or plasma

Container/Tube: Serum gel or heparinized plasma

Sample Volume: Submit full tube

Minimum Volume: 0.5 mL serum or plasma

Preparation:

  1. Send specimens in their original tubes.
  2. Centrifuge tubes if there is a delay in transport of more than 1 hour.
Storage:

  • Samples are stable for up to 8 hours at 15 – 25°C.
  • Samples are stable for up to 7 days at 2 – 8ºC.

Unacceptable Conditions: Samples with moderate or marked hemolysis will be rejected.

Specimen Retention Time: 5 days

Use:

Measurements of inorganic phosphorus are used in the diagnosis and treatment of various disorders, including parathyroid gland and kidney diseases, as well as vitamin D imbalance.

Methodology:

Phosphomolybdenate Method

Reported:

Within 24 hours

Reference Values:

Adults: 2.5 – 5.0 mg/dL
Children: 4.0 – 7.0 mg/dL