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Geisinger Medical Laboratories Test Catalog
OSMOTIC GAP, FECES |
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Geisinger Epic Procedure Code: LAB4220
Geisinger Epic ID: 176161
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SPECIMEN COLLECTION |
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Specimen type: |
Liquid stool | |
Preferred collection container: |
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Specimen required: |
10 mL (minimum 2 ml) random watery liquid fecal collected in a plastic screw-cap container, or 24-hour, 48-hour or 72-hour watery liquid fecal collected in a plastic screw-cap container | |
Special notes: |
Submit a frozen specimen of watery liquid feces in a plastic screw-cap container. Keep feces refrigerated during collection and transport frozen. Only watery liquid feces are an acceptable specimen. In the event a formed fecal specimen is submitted, the test will not be performed and will be cancelled. | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
Specimen must be shipped frozen to reduce the odor during shipping and to minimize the risk of the container rupturing due to gas accumulation. | |
Transport temperature: |
Frozen. | |
Specimen stability: |
Room temperature: Unacceptable. Refrigerated: 7 days. Frozen: 60 days. | |
Rejection criteria: |
Specimens in paint cans • Formed stool • Specimens received room temperature or refrigerated | |
TEST DETAILS |
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CPT code(s): |
84302, 84311 | |
| Note: The billing party has sole responsibility for CPT coding. Any questions regarding coding should be directed to the payer being billed. The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only. | ||
Test includes: |
Sodium, Feces. Potassium, Feces. Fecal Osmotic Gap | |
Methodology: |
Flame Photometric |
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Synonyms: |
Quest code 17263
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