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)

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
  • THIOCYANATE
  • THIO
Laboratory
Chemical Pathology
Section
Special Chemistry
Specimen Requirements
Collection Instructions

Collect specimen in SST tube. Centrifuge, aliquot serum into a plastic container and refrigerate.

Yellow Top Tube
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