PF199 - Specimen: Carbohydrate Antigen 19-9 (CA 19-9), Pleural Fluid

Test Catalog

Test Name

Test ID: PF199    
Carbohydrate Antigen 19-9 (CA 19-9), Pleural Fluid

Specimen Type Describes the specimen type validated for testing

Pleural Fluid

Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.

Patient Preparation: Twelve hours before this blood test, do not take multivitamins or dietary supplements containing biotin or vitamin B7 that are commonly found in hair, skin and nail supplements and multivitamins.

Container/Tube: Plain, plastic, screw-top tube

Specimen Volume: 2 mL


Specimen Minimum Volume The amount of sample necessary to provide a clinically relevant result as determined by the Laboratory.

0.5 mL (Samples <0.5 mL may be rejected)

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected


Mild OK; Gross reject







Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperatures are also included.

Specimen TypeTemperatureTime
Pleural FluidFrozen (preferred)90 days
 Refrigerated 14 days
 Ambient 7 days