Days Set Up
Monday - Friday, one run per day
Analytic Time

8 hours

MiChart Code
Thiocalc Comp of Thio Mon
Soft Order Code

Test Updated:



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Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

Learn about how to properly label and where to ship specimens.

Order Kits and Supplies

MLabs provides all the supplies necessary for the collection of specimens.

Test FAQ

Visit our provider FAQ and learn about common questions to ordering tests.

Test Overview

Test Methodology


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.

Specimen Requirements

Collection Onsite

Collect specimen in SST tube.

Collection Offsite

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

Billing Information

CPT Code
Pro Fee Code

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.