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Test Code C199 Ca 19-9

Specimen Type

Blood

Preferred Collection Container

GRN-PST

Collection Instructions

Collect blood in a PST, red top or SST tube. Centrifuge, aliquot serum into plastic vial and refrigerate.

Collection Volume

1 mL

Minimum Collection Volume

0.6 mL or 1 full Green microtainer

Testing Volume

0.5 mL (500 ul) (Minimum 0.3 mL (300 ul))

Rejection Criteria

Inadequate labeling; Improper collection; Insufficient volume.

Specimen Storage and Stability

Refrigerate serum.

Day(s) and Time(s) Performed

Monday through Sunday, 24 hours

Alias

Carbohydrate Antigen 19-9;Cancer Antigen 19-9;CA 19-9; i. GI-199

Ordering Info

Significant interference from biotin can be observed with this assay. It is recommended that patients refrain from taking any supplements containing biotin for 24 hours before having this test drawn.

EPIC Code

LAB777

Acceptable Collection Container

GRN-PST, SST, R-NoGel, G-NoGel

Turn Around Time

Daily

Lab Department

Chemistry