Ghrelin, Total

Test Code

900833

CPT Codes
83520<br>This test is not available for New York State patient testing.

Preferred Specimen

3 mL plasma collected in an ISI GI Preservative tube

Patient Preparation
Patient should be fasting for 10 - 12 hours prior to collection of specimen.
Patient should not be on any medications or supplements that may influence: Cholecystokinin (CCK), Glucose, Growth Hormone, Insulin and/or Somatostatin levels, if possible, for at least 48 hours prior to collection.

Minimum Volume

1 mL

Instructions

Collect 10 mL blood in special ISI GI Preservative tube, yielding special GI plasma and separate in refrigerated centrifuge as soon as possible. Transfer 3-5 mL immediately into nonglass shipping vial, or into a plastic aliquot tube or vial. Minimum specimen size is 1 mL. Freeze specimen -20°C. Variance from these instructions must be disclosed to ISI before specimen analysis.

This test is not valid unless it has been collected with the GI Preservative available from ISI.

Transport Container

Plastic aliquot tube or vial

Transport Temperature

Frozen

Specimen Stability

Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 30 days

Methodology
RIA

Setup Schedule

Set up: Mon-Fri; Report available: 8 business days

Reference Range

See Medical Report

Clinical Significance

Sensitivity is determined as the least amount of Ghrelin that can be distinguished from zero. The lower and upper limits of detection are 85-2400 pg/mL.

Performing Laboratory
Inter Science Institute
944 W Hyde Park Blvd
Inglewood, CA 90302

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.