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Test Code QUETSO Quetiapine, Serum (423)

Additional Codes

MedTox Laboratories Test Code: 423

Useful For

Therapeutic Drug Management

Synonyms/Keywords

Seroquel

Quetiapine, Serum (423)

Specimen Requirements

Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
Serum Red Top Tube (RTT)   3 mL 0.6 mL  
Plasma Lithium-heparin Green Top Tube or Sodium-heparin Green Top Tube (GTT)   3 mL 0.6 mL  

Collection/Processing Instructions

Gel-barrier tubes are not recommended.

Trough levels are most reproducible.

Specimen Stability Information

Specimen Type Temperature Time
Serum or Plasma Ambient  3 days
Refrigerated 14 days
Frozen 6 months

Reference Range Information

Performing Location Reference Range
Medtox Laboratories Therapeutic and toxic ranges have not been established. Expected steady-state quetiapine plasma levels in patients receiving recommended daily dosages: 100 - 1000 ng/ml.

Performing Laboratory Name

Medtox Laboratories

Referral Laboratory Information

Address Telephone Website Link Marshfield Lab Account #

402 West County Road D

St. Paul, MN 55112

800-832-3244 (Main)

888-310-2264 (Team Emerald)

 www.medtox.com 1080

Performing Information

Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Medtox Laboratories Monday through Saturday 5 days Liquid Chromatography/Tandem Mass Spectrometry (LC/MS-MS)

CPT Codes

 

CPT Modifier
(if needed)		 Quantity Description Comments
80299   1    

 

Outreach CPT Codes

CPT Modifier
(if needed)		 Quantity Description Comments
80299   1    

Ordering Applications

Ordering Application Description
COM Quetiapine, Serum (423)
Cerner Quetiapine, Serum (423)