Test Overview
Test Methodology
Colorimetric
Test Usage
Evaluate thiocyanate toxicity, nitroprusside poisoning
Reference Range *
Normal: Negative; Therapeutic: 0.6-2.9 mg/dL (103-499 uMol/L); Toxic: greater than 3.5 mg/dL (greater than 602 uMol/L), Critical: greater than 10.0 mg/dL (greater than 1720 uMol/L)
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Test Details
Days Set Up
Monday - Friday, one run per day
Analytic Time
8 hours
Soft Order Code
THIO
MiChart Code
Thiocalc Comp of Thio Mon
Synonyms
Laboratory
Chemical Pathology
Section
Special Chemistry
Specimen Requirements
Collection Instructions
Collect specimen in SST tube. Centrifuge, aliquot serum into a plastic container and refrigerate.
Normal Volume
1.5 mL serum
Minimum Volume
1.0 mL serum
Additional Information
Nitroprusside (Nipride) is an antihypertensive agent; it produces cyanogen (CN) in the body which is rapidly detoxified to thiocyanate in the liver. The half-life of thiocyanate is 7 days. Toxic manifestations are psychotic behavior, agitation and convulsions.
Billing
CPT Code
84430
Fee Code
20080
LOINC
3002-3
NY State Approved
No