Isoniazid, serum or plasma

Alphabetical Test listing

Isoniazid, serum or plasma-994

  
Isoniazid, serum or plasma
  
994
  
LAB994
  
MSO
  
Nydrazid
  

Therapeutic drug management

  
Serum
  
  
2.0 mL
  
0.5 mL
  

Trough levels are most reproducible

  

Spin and separate within two hours of specimen collection

  
Heparin plasma
  

Dk green heparin (Li or Na), no gel

 

  

Spin and separate within two hours of specimen collection

  

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

  

Refrigerated (preferred)

Ambient - <3 days

Frozen (OK)

  
  • Gel-barrier tubes are not recommended
  
MedTox via LabCorp (808376): R-NX
  
Th
  
10 - 14 days
  

High-pressure liquid chromatography with ultraviolet detection (HPLC/UV)

  

The effective concentration range of isoniazid is dependent on the minimum inhibitory concentration of the pathogen being treated.

 

  

Toxic range: >20 µg/mL

  
80375
  
01/30/2020
  
02/03/2020