Chlordiazepoxide and Desmethylchlordiazepoxide


Sunquest Code:LIBR  
Epic Code:LAB3586Epic Name:Chlordiazepoxide
Synonyms:Librium
Methodology:High performance liquid chromatography with ultraviolet detection
CPT Code:80346, 80346
Turnaround Time:Specimens are sent to reference laboratory Mon-Fri; results are reported within 3 days.


Collection Instructions

Specimen:Blood
Optimal Volume:4 mL
Minimum\Peds Volume:2.4 mL
Container:Red (no gel) protect from light (Green (lithium heparin, no gel), Green (sodium heparin, no gel))
Collection Instructions:Usual sampling time is immediately prior to next dose (trough).
Causes for Rejection:Sample not protected from light. Room temperature specimens.


Processing and Shipping

Specimen Processing:Centrifuge and aliquot 2 mL, 1 mL minimum. Protect from light.
Shipping Instructions:Ship frozen. Protect from light.
Stability:If protected from light: 24 hours refrigerated, 2 weeks frozen.
Test Performed at or Referral Lab Lab Sendouts  (MedTox)
Referral Lab number:24


Interpretive

Reference Range:Chlordiazepoxide & Desmethylchlordiazepoxide (combined total): 400-3000 ng/mL
Use:Therapeutic monitoring; to evaluate toxicity.


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