Testing Algorithm Delineates situation(s) when tests are added to the initial order. This includes reflex and additional tests.
For other diagnostic tests that may be of value in evaluating patients with diarrhea; the following algorithms are available in Special Instructions:
-Laboratory Testing for Infectious Causes of Diarrhea
-Parasitic Investigation of Stool Specimens Algorithm
Specimen Type Describes the specimen type needed for testing
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: Patient should avoid use of antidiarrheal medication (ie, loperamide or Pepto-Bismol).
The presence of barium will interfere with this test.
ECOFIX Stool Transport Vial (Kit) (T219)
Formalin-Meridian 10% Buffered Neutral (T466)
Stool container, Small (Random), 4 oz (T288)
Sodium Acetate Formalin (SAF)
Stool Collection Kit, Random (T635)
Submit only 1 of the following specimens:
Specimen Type: Preserved stool
Preferred: ECOFIX Stool Transport Vial (Kit) (T219)
Acceptable: 10% Buffered Formalin Stool Transport (Kit) (T466), Sodium Acetate Formalin (SAF)
Specimen Volume: 10 g
Specimen Stability Information: Ambient (preferred)/Refrigerated
Specimen Type: Unpreserved stool
Container/Tube: Stool container (T288)
Specimen Volume: 5 g
Specimen Stability Information: Refrigerated 3 days (preferred)/Frozen
If not ordering electronically, complete, print, and send a Microbiology Test Request Form (T244) with the specimen (http://www.mayomedicallaboratories.com/it-mmfiles/microbiology_test_request_form.pdf).
Specimen Minimum Volume Defines the amount of specimen required to perform an assay once, including instrument and container dead space. Submitting the minimum specimen volume makes it impossible to repeat the test or perform confirmatory or perform reflex testing. In some situations, a minimum specimen volume may result in a QNS (quantity not sufficient) result, requiring a second specimen to be collected.
Preserved stool: 1 g; Unpreserved stool: 2 g
Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperature(s) are also included.