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Test Name:
Thiocyanate, Serum or Plasma
- SBMF No:
44432 - Performance Lab Name:
ARUP Laboratories - Test Mnemonic:
THIO - ABN:
Not required - CPT Code:
84430 - LOINC Code:
3002-3 - Ref Lab Test No:
0090061 - Also Known As:
Nipride, Metabolite of
Nitropress administration
Rhodanide
Sodium Nitroprusside - Spec Type:
Serum or plasma - Spec Container:
Red top (serum), Lavender top (EDTA), Green top (heparin), or Gray top (fluoride/oxalate) tube - Alt Spec Container:
Also acceptable (avoid if possible): Gold top (SST) or light green top (PST) tube (follow instructions below) - Pref Vol:
1.0 mL - Min Vol:
0.3 mL - Fasting:
No - Spec Collect:
Avoid use of gel-barrier tubes for specimen collection
Routine venipuncture - Spec Process:
Serum sample tubes, clot 30 minutes
Promptly centrifuge 15 minutes
Immediately transfer serum or plasma to separate plastic tube - Spec Store Transport:
Refrigerated - Spec Stability:
After separation from cells:
5 days room temperature (20-30°C)
5 days refrigerated (2-8°C)
5 days frozen (-20°C) – Do not use frost-free units that undergo repeated freeze/thaw cycles - Spec Reject:
Citrated plasma
Tubes that contain liquid anticoagulant - Spec Remarks:
Separate serum or plasma from cells within 2 hours of collection
SST or PST:
Serum or plasma in a gel separator tube stored at room temperature is acceptable if separated from the gel within 6 hours
Serum or plasma in a gel separator tube stored refrigerated is acceptable if separated from the gel within 2 hours - Methodology:
Quantitative Colorimetric - Reference Range:
Nonsmoker: 1-4 µg/mL
Smoker: 3-12 µg/mL
Toxic: > 50 µg/mL
Values seen with nitroprusside therapy: 6-29 µg/mL - Day Run:
Mon-Fri - Time Reported:
2-5 days - Test Type:
CHEMISTRY
