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Isoniazid, Level
Test Code901266
CPT Codes
80299<br>This test is not available for New York patient testing
Preferred Specimen
2 mL serum collected in a red-top tube (no gel)
Minimum Volume
0.5 mL
Other Acceptable Specimens
Plasma collected in: Sodium heparin (green-top) tube
Instructions
Ship samples to received Monday through Friday. Do not ship on Friday or Saturday.
Collect blood in an 8-10 mL plain red-top tube. An 8-10 mL green-top tube is also acceptable for this assay, but not preferred.
Separate serum (or plasma) from cells immediately by centrifuge and aliquot into a labeled polypropylene or similar plastic tube. Use a separate tube for each test ordered. Allow room for expansion of sample. Include drug dose amount, frequency, method, and date, and time of last dose prior to draw.
Collect blood in an 8-10 mL plain red-top tube. An 8-10 mL green-top tube is also acceptable for this assay, but not preferred.
Separate serum (or plasma) from cells immediately by centrifuge and aliquot into a labeled polypropylene or similar plastic tube. Use a separate tube for each test ordered. Allow room for expansion of sample. Include drug dose amount, frequency, method, and date, and time of last dose prior to draw.
Transport Container
Polypropylene or similar plastic tube
Transport Temperature
Frozen
Specimen Stability
Room temperature: 1 hour
Refrigerated: Unacceptable
Frozen: 30 days
Refrigerated: Unacceptable
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Serum separator tube
Methodology
High Performance Liquid chromatography (HPLC)
FDA Status
The performance characteristics for this test have been validated by Advanced Diagnostics Laboratories at National Jewish Health. It has not been cleared or approved by the US Food and Drug Administration.
The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions. This laboratory is certified under the Clinical Laboratory Improvement Amendments of 1988 (CLIA 88) as qualified to perform high complexity clinical laboratory testing.
Setup Schedule
Set up: Mon-Fri; Report available: 4-7 days
Reference Range
See Laboratory Report
Performing Laboratory
National Jewish Medical and Research Center
1400 Jackson Street
Denver, CO 80206
