Cyanide Screen, Blood Test (9142B)

Cyanide Screen, Blood Test (9142B)

Analysis Code 9142B 
Test Name Cyanide Screen, Blood 
Test Includes Cyanide 
Compound Synonym(s) CN; Hydrogen Cyanide; Potassium Cyanide 
Purpose Exclusion Screen; This test is New York State approved. 
Category Environmental/Occupation Toxin 
Method(s) High Performance Liquid Chromatography/
TandemMass Spectrometry (LC-MS/MS) 
Specimen Requirements 3 mL Blood 
Transport Temperature Frozen 
Specimen Container Gray top tube (Sodium Fluoride / Potassium Oxalate) 
Special Handling Studies have shown that cyanide has variable instability in biological specimens and is particularly unstable in some postmortem specimens. The loss of cyanide can be minimized by shipping the sample to the laboratory for analysis as soon as possible, preferably using refrigerated or frozen transportation and preservation using sodium fluoride / potassium oxalate (grey-top tube). Samples should not be refrozen if previously thawed. The potential for increases in cyanide concentrations, although rare, have also been demonstrated and may be due to microbial action. Preservation with sodium fluoride may reduce this possibility. 
Light Protection Required Not Required 
Stability Room Temperature: Undetermined
Refrigerated: 1 day(s)
Frozen (-20 °C): 3 month(s) 
*Rejection Criteria Received Refrigerated. 
Day(s) Test Set-up / TAT [LC-MS/MS] Tuesday / 3 days 
Suggested CPT Code 80307 
**Minimum Volume 1.1 mL 
Reflex Testing
(when required, addl' fee may apply)
5636B - Cyanide Confirmation, Blood 
Test Summary Sheet Generate  

You are viewing Cyanide Screen, Blood Test (9142B)
*Rejection criteria pertain to clinical specimen submissions only.
**Stated minimum volume allows for a single analysis. Repeat analysis will not be performed.


A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0 1 2 3 4 5 6 7 8 9