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Test Code 9685 Serotonin, Serum

Additional Codes

Mayo Test ID
SER

Reporting Name

Serotonin, S

Useful For

In conjunction with, or as an alternative to first-order test in the differential diagnosis of isolated symptoms suggestive of carcinoid syndrome, in particular flushing (5-HIAA or serum chromogranin A measurements are first-line tests)

 

Second-order test in the follow-up of patients with known or treated carcinoid tumors in serum specimens

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type

Serum


Specimen Required


Collection Container/Tube: 

Preferred: Red top

Acceptable: Serum gel

Submission Container/Tube: Plastic vial

Specimen Volume: 2.5 mL

Collection Instructions: Spin down as soon as blood has clotted.

Additional Information: Medications that may affect serotonin concentrations include lithium, monoamine oxidase inhibitors, methyldopa, morphine, and reserpine.


Barnes-Jewish Hospital Note:

For non hospital patient, call Barnes-Jewish Hospital Laboratory Customer Service at 314-362-1470 for STAT pick-up.

 

Send original tube on wet ice.


Specimen Minimum Volume

1.1 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Frozen (preferred) 90 days
  Refrigerated  24 hours

Reference Values

≤230 ng/mL

Day(s) and Time(s) Performed

Monday, Wednesday, Friday; 10 a.m.

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information

84260

LOINC Code Information

Test ID Test Order Name Order LOINC Value
SER Serotonin, S 27057-9

 

Result ID Test Result Name Result LOINC Value
84395 Serotonin, S 27057-9

Method Name

Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)

Barnes-Jewish Hospital Additional Information:

For BJH Laboratory Use Only

Laboratory Processing Instructions:
BJH Chemistry will forward to the performing laboratory. Specimen must be received on wet ice.