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Test Code DTBlood Drug Test Blood

Patient Preparation

No special patient preparation required

Collection Method

Venous collection

Minimum Volume

  • Adults: 0.8 mL
  • Pediatric: 0.6 mL

Container

Lt Green / Plasma Separator / Lithium Heparin

Preferred Specimen

Light Green Top (lithium heparin) plasma

Acceptable Specimens

Serum:

  • Gold Top SST

  • Red Top

Plasma:
  • Light Geen Top (lithium heparin)
  • PurpleTop(K2 EDTA)

Reference or Target Ranges

Acetaminophen <5 ug/mL
(Therapeutic range 10 – 30 ug/mL)
Ethanol <10 mg/dL
Salicylate Anti-pyretic: 3 – 10 mg/dL
Anti-inflammatory: 15 – 30 mg/dL

Reportable Units

Varies

Critical Value

Acetaminophen ≥50ug/mL (Depending on time interval post dosing)
Ethanol >300 mg/dL
Salicylate ≥30 mg/dL

Reasons for Rejection



<!-- Rejection-->
Hemolysis Threshold
 See individual assays
Icterus Threshold
 See individual assays
Lipemia Threshold
 See individual assays
Other
 QNS, contaminated, improperly Labeled, improper specimen type

Specimen Stability



<!-- Stability -->
Ambient
 2 hours once opened or 8 hours unopened
Refrigerated (4°C to 8°C)
 48 hours unopened
Frozen(-40°C to 0°C)
 2 weeks unopened

Performance Information



<!-- Performance information -->
Days and Time Performed
 24/7
Expected Turn Around Time
 Stat: 1 hour
Routine: 4 hours
Stat Availability
 Yes
Performing Bench
 UH Chemistry, WCH Chemistry
Methodology/Method Description
 Roche Cobas – See individual assays

Additional Information/Important Notes

See individual test components for more information

CPT Codes

82077, 80143, 80179

Panel Components

  • Acetaminophen
  • Ethanol
  • Salicylate