Neurokinin A

Neurokinin A

Test Code

17089
83519
17089
83519
This test is not available in all locations. Please provide SERVICE AREA INFORMATION to confirm Test Code for the lab that services your account or to find available tests you can order.
In-home collection is not available in your area through Quest Mobile.

Clinical Significance

Neurokinin A - Neurokinin A is a ten amino acid putative transmitter synthesized in the neurons it is present in. Neurokinin A is a member of the family called Tachykinins which also include Neurokinin B, Substance P, Physalaemin, and Eledoisin. Neurokinin A shares 6 of 10 peptide homologies with Neurokinin B even though they are produced by different genes. Neurokinin A is also very similar in structure to Substance P and produces some of the same biological actions as Substance P. Neurokinin A is a potent bronchoconstrictor. In the gut, Neurokinin A is produced by the intrinsic enteric nervous system.

Test Resources

None found for this test
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Test Details

Patient Preparation

Patient should not be on any medications that affect hypertension, gastrointestinal functions or pain relievers, if possible for at least 48 hours prior to collection of specimen

Methodology

Direct Radioimmunoassay

Assay Category

This test was developed and its performance characteristics have been determined by Inter Science Institute. Values obtained with different methods, laboratories, or kits cannot be used interchangeably with the results on this report. The results cannot be interpreted as absolute evidence of the presence or absence of malignant disease.

Reference Range(s)

<40 pg/mL

LOINC® Codes, Performing Laboratory

Service Area must be determined
Patient should not be on any medications that affect hypertension, gastrointestinal functions or pain relievers, if possible for at least 48 hours prior to collection of specimen

Methodology

Direct Radioimmunoassay
This test was developed and its performance characteristics have been determined by Inter Science Institute. Values obtained with different methods, laboratories, or kits cannot be used interchangeably with the results on this report. The results cannot be interpreted as absolute evidence of the presence or absence of malignant disease.

Reference Range(s)

<40 pg/mL
Service Area must be determined

Preferred Specimen(s)

3 mL frozen plasma collected in a 10 mL InterScience Institute’s (ISI) Z-tube™ Preservative

Alternative Specimen(s)

For tumor/tissue and various fluids (i.e. CSF, peritoneal, synovial, etc.) contact Inter Science for requirements and special handling

Minimum Volume

1 mL

Collection Instructions

Collect 10 mL blood directly into ISI's Z-tube™ Preservative and separate as soon as possible. Freeze plasma immediately after separation. Special Z-tube™ Preservatives are available from Inter Science Institute (ISI).

Note: One Z-tube™ may be shared for up to three tests. After centrifuging tube, aliquot 1mL per test in separate vials, mark with name of test and freeze.

Transport Container

Transport tube

Transport Temperature

Frozen

Specimen Stability

  • Room temperature: Unacceptable
    Refrigerated: Unacceptable
    Frozen: 6 months

Reject Criteria

Gross hemolysis • Grossly lipemic • Grossly icteric • Received room temperature • Received refrigerated • Not collected in a Z-tube™

Setup Schedule

Service Area must be determined
3 mL frozen plasma collected in a 10 mL InterScience Institute’s (ISI) Z-tube™ Preservative
For tumor/tissue and various fluids (i.e. CSF, peritoneal, synovial, etc.) contact Inter Science for requirements and special handling
1 mL
Collect 10 mL blood directly into ISI's Z-tube™ Preservative and separate as soon as possible. Freeze plasma immediately after separation. Special Z-tube™ Preservatives are available from Inter Science Institute (ISI).

Note: One Z-tube™ may be shared for up to three tests. After centrifuging tube, aliquot 1mL per test in separate vials, mark with name of test and freeze.
Transport tube
Frozen
Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 6 months
Gross hemolysis • Grossly lipemic • Grossly icteric • Received room temperature • Received refrigerated • Not collected in a Z-tube™
Service Area must be determined
This test is not available in all locations. Please provide ACCOUNT INFORMATION NEEDED to confirm Test Code for the lab that services your account or to find available tests you can order.
In-home collection is not available in your area through Quest Mobile.
Test Details

Clinical Significance

Test Resources

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.

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