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Substance P : 92105
Test CodeSUBPQ or 92105
CPT Codes
83520
Instructions
Serum: collect blood in SST tube. Allow to clot for 30 min at room temperature. Centrifuge sample at 1000 X G for 15 minutes. Separate serum into a transfer tube as soon as possible. Freeze at -20° C immediately.
Transport Container
Specimen
5 mL serum
Minimum Volume
1 mL
5 mL serum
Minimum Volume
1 mL
Transport Temperature
Frozen.
Specimen Stability
Room temperature: None; Refrigerated: None; Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Received unfrozen; Received room temperature; Specimens outside of listed stability; Plasma
Methodology
Enzyme Immunoassay
Setup Schedule
Varies
Report Available
Varies
Limitations
The performance characteristics of the listed assay was validated by BioAgilytix Diagnostics. The US FDA has not approved or cleared this test. The results of this assay can be used for clinical diagnosis without FDA approval. BioAgilytix Diagnostics is a CLIA certified, CAP accredited laboratory for performing high complexity assays such as this one.
Reference Range
<1700 pg/mL
Clinical Significance
Substance P is a neuropeptide 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 cored, 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 cardinoid or neuroendocrine tumors.
Performing Laboratory
BioAgilytix Diagnostics
