Sign in →

Test Code ACETAMIN Acetaminophen, Plasma or Serum

Additional Codes

  • Expanse Test Name: Acetaminophen
  • Medinet Ref Code: ACET
  • OV Code: CHEM*ACET

Performing Laboratory

St. Lukes Hospital Laboratory

Methodology

Enzymatic

Specimen Requirements

Submit only 1 of the following specimens:

 

Plasma

Draw blood in a green-top (lithium heparin) plasma gel tube(s). Spin down and send 1 mL of lithium heparin plasma at room temperature, stable up to 8 hours.

Stable up to 45 days when frozen at -20C

Note:  1. Indicate date and time of last dose and plasma on request form.

2. Label specimen appropriately (plasma).

 

Serum

Draw blood in a serum gel tube(s). Spin down and send 1 mL of serum room temperature, stable for up to 8 hours.

Stable up to 45 days when frozen at -20C

Note:  1. Indicate date and time of last dose and serum on request form.

2. Label specimen appropriately (serum).

 

Unspun specimens must be transported at ambient temperature and arrive to the laboratory within one hour of draw.

Reference Values

Reporable units: µg/mL

See, Rumack-Matthew Nomogram (Resources) for single, one-time ingestion of Acetaminophen

Limits of possible toxicity are lower if the specimen is drawn >4 hours after ingestion. A specimen drawn sooner than 4 hours after ingestion cannot be correlated well with toxicity.

Result will flag as critical at >149 µg/mL

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

CPT:  80302

 

LOINC:  3298-7