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22219 Alprazolam (008)

Alprazolam (008)
Test Code: MISC
Synonyms/Keywords
​Xanax
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) ​ ​2 mL ​0.3 mL ​
​Plasma ​Lithium-heparin Green Top Tube, or Sodium-heparin Green Top Tube (GTT) EDTA Lavendar Top Tube (LTT)​ 2 mL​ ​0.3 mL ​
Collection Processing Instructions
Trough levels are most reproducible
Specimen Stability Information
Specimen Type Temperature Time
​Serum or Plasma ​
Ambient temperature is acceptable for shipping and/or short-term storage. 
 3 days​
Specimen may also be refrigerated or frozen. ​
Rejection Criteria
Serum Separator Tube (SST)
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Medtox Laboratories​ Set up daily​ 5 days​
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Reference Lab
Medtox Laboratories
Reference Range Information
Performing Location Reference Range
Medtox Laboratories​
Report Limit
2.0 ng/mL
Reference Range
5 - 25 ng/mL
Critical Value - High
60.0 ng/mL

Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
​80346 ​ ​ ​ ​
Synonyms/Keywords
​Xanax
Ordering Applications
Ordering Application Description
​COM ​Misc Test
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
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) ​ ​2 mL ​0.3 mL ​
​Plasma ​Lithium-heparin Green Top Tube, or Sodium-heparin Green Top Tube (GTT) EDTA Lavendar Top Tube (LTT)​ 2 mL​ ​0.3 mL ​
Collection Processing
Trough levels are most reproducible
Specimen Stability Information
Specimen Type Temperature Time
​Serum or Plasma ​
Ambient temperature is acceptable for shipping and/or short-term storage. 
 3 days​
Specimen may also be refrigerated or frozen. ​
Rejection Criteria
Serum Separator Tube (SST)
Reference Range Information
Performing Location Reference Range
Medtox Laboratories​
Report Limit
2.0 ng/mL
Reference Range
5 - 25 ng/mL
Critical Value - High
60.0 ng/mL

For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Medtox Laboratories​ Set up daily​ 5 days​
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Reference Lab
Medtox Laboratories
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
​80346 ​ ​ ​ ​
For most current information refer to the Marshfield Laboratory online reference manual.