Substance P

Alphabetical Test listing

Substance P-994

Test name:

Substance P

Test number:

994

Excellian order number:

LAB994

Abbreviation:

MSO

Useful for:

Substance P is a neuropepetide present in the central and peripheral nervous system. Substance P is a neurotransmitter released in response to pain and other noxious stimuli. Substance P is a neuropeptide of the tachykinin class that also includes neurokinin. Substance P is found in the brain, spinal cord, and peripheral tissues and is released from nerve endings in response to stimuli. Increased substance P levels can occur in neurogenic inflammation and physiological stress and may be associated with carcinoid or neuroendocrine tumors.

Patient preparation information:

Patient should be fasting 10-12 hours prior to collection.

Antacid medication or medication that may affect intestinal motility should be discontinued if possible for at least 48 hours prior to collection.

Specimen type:

Serum

Collection container:

Gold serum separator (SST) tube

Volume:

5.0 mL

Minimum volume:

1.0 mL

Collection instructions:

Immediatley following collection, mix sample by gently inverting 5 times

Processing instructions:

Allow sample to clot for a minimum of 30 minutes at room temperature
Centrifuge at 3400 for 10 minutes
Transfer serum into a Transfer vial/tube with cap - 12mL (LabCorp), labelled as serum, as soon as possible
Freeze at -20 °C immediately

Transport container:

Transfer vial/tube with cap - 12mL (LabCorp)

Transport and stability:

Frozen (strict) - 4 weeks

Refrigerated - NO

Ambient - NO

Reason for rejection:

Specimens received refrigerated or room temperature

Performing lab:

BioAgilytix via LabCorp (284164): R-NX

Days set up:

1x per week

TAT:

22 days

Method:

Enzyme Immunoassay (EIA)

Reference ranges:

<1700 pg/mL

CPT codes:

83520

Date created:

03/18/2014

Revised date:

12/18/2023

Review date:

12/18/2023