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Test Directory

FGF-23 (Fibroblast Growth Factor 23)

Test Summary

FGF 23 determination is useful in diagnosis and monitoring oncogenic osteomalacia, diagnosis of familial tumoral calcinosis with hyphosphatemia, diagnosis of X -linked phosphatemia or autosomal dominant hypophospatemic rickets, predicting treatment response to calcitriol or vitamin D analogs in patients with renal failure

Aliases

  • Human FGF 23, FGF-23, C-terminal FGF 23, intact and C-terminal FGF 23 .

Specimen Collection

Special Instructions

N/A

Preferred Specimen

1 mL plasma collected in a lavender top tube (EDTA)

Minimum Volume

0.3 mL

Instructions

N/A

Patient Preparation

Fasting specimen is preferred.

Storage

N/A

Transport Temperature

Frozen

Specimen Stability

  • Room temperature: Unacceptable
  • Refrigerated: 6 hours
  • Frozen: 90 days

Limitations

N/A

Other Acceptable Specimens

N/A

Unacceptable Specimens

Received room temperature

Order Code

FGF23

EPIC (Premier) Code

LAB5755

Includes

N/A

CPT Code

  • 83520

Billing Code

  • 670293

CPT Statement

Methodology

ELISA

FDA Status

The performance characteristics of this test were determined by Pan Laboratories. It has not been cleared or approved by the U.S. Food and Drug Administration.

Physician Attestation of Informed Consent

N/A

Testing Laboratory

Pan Laboratories, LLC
15375 Barranca Pkw
E101
Irvine CA, 92618

Department

Reference Testing

Reference Range

Adults <180 RU /mL
Children (1 Month-17 Years) <230 RU /mL
Infants >900 RU /mL

Setup Schedule / Expected Turnaround Time

Friday; Report available: 1 day

Specimen Collection

Special Instructions

N/A

Preferred Specimen

1 mL plasma collected in a lavender top tube (EDTA)

Minimum Volume

0.3 mL

Instructions

N/A

Patient Preparation

Fasting specimen is preferred.

Storage

N/A

Transport Temperature

Frozen

Specimen Stability

  • Room temperature: Unacceptable
  • Refrigerated: 6 hours
  • Frozen: 90 days

Limitations

N/A

Other Acceptable Specimens

N/A

Unacceptable Specimens

Received room temperature

Billing

CPT Code

  • 83520

Billing Code

  • 670293

CPT Statement

Result Information

Methodology

ELISA

Testing Laboratory

N/A

Reference Range

Adults <180 RU /mL
Children (1 Month-17 Years) <230 RU /mL
Infants >900 RU /mL

Setup Schedule / Expected Turnaround Time

Friday; Report available: 1 day