CA 19 9

General Information

Method

Chemiluminescence

Reference Range

Units: U/mL

Female		Male
Age	Range	Age	Range
0-	0-54	0-	0-54

Effective date: 01/04/2017

Ref. Range Notes

Patient results determined by assays using different manufacturers, instruments, or methods may not be comparable.

Interferences and Limitations

Biotin supplements can cause falsely low values. See Limitations of Laboratory Testing for details.

Specimen Type: Blood
Collection: All Locations:

Preferred: 4 mL blood in RED TOP tube

Also Acceptable: 4 mL blood in ORANGE RST, GOLD SST, LIME GREEN PST or GREEN TOP tube
Quantity: Requested: 0.5 mL serum or plasma
Minimum: 0.3 mL serum or plasma

Receiving Instructions: Stable at room temp up to 8 hr, refrigerated up to 7 days. Store at -20 C or colder if test cannot be completed within 7 days.

Note: serum/plasma must be removed from SST, PST or clot

Lab Department

Chemistry, Automated Panels(CHA)

Frequency

Monday-Friday, results same day

Available STAT?

Performing Location(s)

FHCC	Fred Hutch Alliance Lab 206-606-1088 825 Eastlake Ave, Seattle, WA 98109
UW-MT	Chemistry, Automated 206-520-4600 Clinical Lab, Room NW220, University of Washington Medical Center, 1959 NE Pacific street, Seattle, WA 98195