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Caffeine

Specimen Requirements

Specimen Type: Serum
Container/Tube: Red Top
Volume: 6.0mL
Minimum Volume: 1.0mL serum

Collection Instructions: Allow specimen to clot for 30 minutes and centrifuge within 2 hours

Sample Stability

** Preferred temperatures for storage prior to and during shipping to NUH **

 

Specimen Type: Serum
Ambient: 1 day
Refrigerate: 2 weeks
Frozen: 2 weeks

 

Reference Interval

An interpretive report will be provided.

Days and Times Performed

Monday through Friday, TAT 7-12 days

Service Code

36869

Referring / Testing Laboratory

National University Hospital
Clinical Chemistry, 67724346

 

Testing Laboratory
Department of Pathology
Singapore General Hospital
Outram Road
Singapore 169608
63214950

Update

Last updated 12/04/2022