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Test Code THEO Theophylline, Plasma or Serum

Additional Codes

Ordering Mnemonic
THEO

 

Methodology

 Immunoassay

Performing Laboratory

Holland Hospital Laboratory Services

Specimen Requirements

Submit only 1 of the following specimens:

 

Plasma

Container/Tube: Mint-top (lithium heparin) tube

Specimen Volume: 1 mL of plasma

Collection Instructions:

Note: 1. Indicate plasma.

2. Label specimen appropriately (plasma).

 

Serum

Container/Tube: Serum gel tube

Specimen Volume: 1 mL of serum

Collection Instructions:

Note: 1. Indicate serum.

2. Label specimen appropriately (serum).

Specimen Transport Temperature

Refrigerate

Day(s) Test Set Up

Monday through Sunday

Available STAT

Test Classification and CPT Coding

80198

Reference Values

Therapeutic concentration: 8-20 µg/mL
Toxic concentration (automatic call-back): ≥25 µg/mL