Caffeine, Serum or Plasma CAFFE

Method(s) Quantitative Enzyme Multiplied Immunoassay Technique
Specimen Required
Collect

Pediatric microtainer, 0.5 mL plain red top tube. Also acceptable: Lavender (K2 or K3EDTA) or pink (K2EDTA) top tubes.

Transport 0.5 mL serum at 2-8ºC. (Min: 0.2 mL)
Stability Collection to initiation of testing: After separation from cells: Ambient: 1 week; Refrigerated: 1 week; Frozen: 2 months
Unacceptable Conditions

Citrated plasma, serum separator tube (SST)

Schedule Wed, Sat
Billing Code 5011323
CPTCode 80155
Notes Test is intended for monitoring caffeine or theophylline therapy in neonates. Additional required information: 1. DOSE - List drug amount and include the units of measure; 2. ROUTE - List the route of administration (IV, oral, etc); 3. DOSE FREQUENCY - Indicate how often the dose is administered (per day, per week, as needed, etc.); 4. TYPE OF DRAW - Indicate the type of blood draw (peak, trough, random, etc.)
Preferred Specimen Collection Device(s)
Reference Interval
 
Reference Interval: Effective February 21, 2017
Age0-28 days29 days and older
Therapeutic Range8-20 ug/mLLess than or equal to 20
(not well established)
ToxicGreater than 20 ug/mLGreater than 20 ug/mL
No Appointment Necessary
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12 Patient Service Centers in Central New York.

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