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Meperidine & Normeperidine

Clinical System Name

Miscellaneous Test

Synonyms

Demerol
Normeperidine

Sample Requirements

Specimen: Whole Blood

Container(s): Red or Dark Green/Sodium Heparin or Gold SST

Preferred Vol: 6 mL

Minimum Vol: 1.2 mL

 

Note:

 

Processing Instructions

Reject due to:

Spin: Y

Aliquot: Y

Temp: 2 - 4 C

Storage location:  Refrigerate in the CPA refrigerator. 

 

Off-site collection: Spin blood. Transfer serum or plasma to plastic aliquot container. Send refrigerated.

Stability

Specimen Type Temperature Time
Serum or plasma Room temp 3 d
  Refrigerated Y
  Frozen Y

 

Availability

STAT Performed TAT
N Daily 7 - 10 d

 

Performing Laboratory

Medtox Laboratories

Department

Department:  

Medtox Laboratories

402 West County Road D
St Paul, MN 55112
 

Phone Number: (800) 832-3244

 

Reference Range

 

  Reporting Limit Range Critical Value
Meperidine 50 ng/mL 200 - 800 ng/ml 1500 ng/ml
Normeperidine 50 ng/mL   1000 ng/ml

 

Methodology

Method: LC/MS/MS

Analytical Volume:

Limitations:

CPT Codes

83925

Send Out Instructions

 

Reference Test Name: Meperidine and Normeperidine, Serum
Reference Test Number: 67
Instructions: Send out Mon - Thurs ambient overnight via FedEx using a Medtox requisition and a Medtox paid airbill.