Cyanide


Sunquest Code:CYAN  
Epic Code:LAB972Epic Name:Cyanide Level
Methodology:High performance liquid chromatography with fluorescence detection
Turnaround Time:Specimens are sent to reference laboratory Mon-Fri; results are reported within 5 days.
Special Instructions:Do not order if patient is on nitroprusside.


Collection Instructions

Specimen:Whole Blood
Optimal Volume:1 mL
Minimum\Peds Volume:0.5 mL
Container:Gray (sodium fluoride + potassium oxalate)
Causes for Rejection:Hemolysis


Processing and Shipping

Specimen Processing:Do not process. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Test Performed at or Referral Lab Lab Sendouts  (MedTox)
Referral Lab number:256


Interpretive

Critical Range:Greater than 1.0 mg/L
Reference Range:

Normal (unexposed population)

Non-smoker

Less than 0.025 mg/L

Smoker

Average 0.41 mg/L

 

Exposed population:

Levels of less than 0.2 mg/L

Non-toxic

levels of 0.5 to 1.0 mg/

Associated with tachycardia and flushing

 

Toxic

Levels of 1.0-2.5 mg/L

Associated with obtundation

Levels greater than 2.5 mg/L

Associated with Coma and respiratory depression

Levels greater than 3 mg/L

Associated with Death

 

 

Use:Used to assess toxicity of nitroprusside therapy.


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