Isoniazid, Serum/Plasma Test (2440SP)

Isoniazid, Serum/Plasma Test (2440SP)

Analysis Code 2440SP 
Test Name Isoniazid, Serum/Plasma 
Test Includes Isoniazid 
Compound Synonym(s) INH; Nydrazid® 
Purpose Therapeutic Drug Monitoring; This test is New York State approved. 
Category Antimicrobial 
Method(s) High Performance Liquid Chromatography/
TandemMass Spectrometry (LC-MS/MS) 
Specimen Requirements 1 mL Serum or Plasma 
Transport Temperature Frozen 
Specimen Container Plastic container (preservative-free) 
Special Handling Serum: Collect sample in Red top tube
Plasma: Collect sample in Lavender top tube (EDTA) or Pink top tube.
Promptly centrifuge and separate Serum or Plasma into a plastic screw capped vial using approved guidelines. Freeze at -70 C upon collection and ship on dry ice. Ship overnight Monday through Thursday, to arrive at NMS Labs the following day. 
Light Protection Required Not Required 
Stability Room Temperature: 1 day(s)
Refrigerated: 1 day(s)
Frozen (-20 °C): 1 day(s)
Frozen (-70 °C): 4 month(s) 
*Rejection Criteria Received Room Temperature. Received Refrigerated. 
Day(s) Test Set-up / TAT [LC-MS/MS] Tuesday / 3 days 
Suggested CPT Code 80375 
**Minimum Volume 0.4 mL 
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You are viewing Isoniazid, Serum/Plasma Test (2440SP)
*Rejection criteria pertain to clinical specimen submissions only.
**Stated minimum volume allows for a single analysis. Repeat analysis will not be performed.


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