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23203 Occult Blood, Gastric Fluid

Occult Blood, Gastric Fluid
Test Code: OCC-G
Test Components
pH, Gastroccult​
Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
Gastric Aspirate​Sage Container​Plastic Container​1.0 mL​1.0 mL​0.5 mL​
Collection Processing Instructions
Gastric aspirate, obtained by nasogastric intubation or vomitus.​
Specimen Stability Information
Specimen Type Temperature Time
Gastric Aspirate​ Ambient​ 24 hours​
Refrigerated​ 5 days​
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Diagnostic Treatment Center ​Monday through Sunday​ ​Less than 2 hours​ ​Gastroccult​
​Eau Claire​Monday through Sunday​​Less than 2 hours​​Gastroccult​​
Lakeview Medical Center ​Monday through Sunday​ ​Less than 2 hours​ ​Gastroccult​
Marshfield​ Monday through Sunday​ Less than 2 hours​ Gastroccult​
Test Information
Includes a pH result as well as the Gastroccult result.​
Reference Range Information
Performing Location Reference Range
All Performing Sites Negative​
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
82271 ​ ​ ​ ​ ​
Test Components
pH, Gastroccult​
Ordering Applications
Ordering Application Description
​Centricity ​Occult Blood, Gastric
​Cerner ​Occult Blood Gastric Fluid
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
Gastric Aspirate​Sage Container​Plastic Container​1.0 mL​1.0 mL​0.5 mL​
Collection Processing
Gastric aspirate, obtained by nasogastric intubation or vomitus.​
Specimen Stability Information
Specimen Type Temperature Time
Gastric Aspirate​ Ambient​ 24 hours​
Refrigerated​ 5 days​
Test Components
pH, Gastroccult​
Reference Range Information
Performing Location Reference Range
All Performing Sites Negative​
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Diagnostic Treatment Center ​Monday through Sunday​ ​Less than 2 hours​ ​Gastroccult​
​Eau Claire​Monday through Sunday​​Less than 2 hours​​Gastroccult​​
Lakeview Medical Center ​Monday through Sunday​ ​Less than 2 hours​ ​Gastroccult​
Marshfield​ Monday through Sunday​ Less than 2 hours​ Gastroccult​
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
82271 ​ ​ ​ ​ ​
For most current information refer to the Marshfield Laboratory online reference manual.