Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

Test Name: Sunquest Test Code Epic Procedure Code Or ID CPT Code:  

GIARDIA EIA STOOL

ORDERING INFORMATION:
Sunquest Test Code:
GEIA      Geisinger Epic Procedure Code: 87329         Geisinger Epic ID: 21935

SPECIMEN COLLECTION
Specimen type:
Preserved stool, stool, stool aspirate
Preferred collection container:
Alternate Collection Container:
Protofix-CLR
Enteric Transport Media (ETM)
Specimen required:
C&S medium filled to the fill line or 5 mL liquid stool or 1 teaspoon semi-solid stool in sterile specimen container. Enteric transport medium, Protofix CLR, 10% formalin, MIF,SAF are also acceptable. Total-FIX is acceptable but not recommended and must be sent to a reference laboratory for testing.
Special notes:
See stool test selection algorithm. Do not contaminate stool specimen with urine. If multiple tests are being ordered on the same specimen, consult test requirements for each test and follow most stringent guidelines.
Patient preparation:
No ingestion of barium, mineral oil, bismuth, antacids, antimalarial agents, or broad-spectrum antibiotics within 7 -14 days of testing

SPECIMEN PROCESSING
Specimen processing instructions:
Do not centrifuge. Do not aliquot. 
Transport temperature:
C&S medium, CaryBlair medium or ETM: 2-8°C for up to 14 days.
Protofix-CLR, 10% formalin, MIF or SAF: Room temperature or 2-8°C for 60 days.
Sterile specimen container: Room temperature 1 hour.
Specimen stability:
C&S medium, CaryBlair medium or ETM: 2-8°C for up to 14 days.
Protofix-CLR, 10% formalin, MIF or SAF: Room temperature or 2-8°C for 60 days.
Sterile specimen container: Room temperature 1 hour.
Rejection criteria:
Stool contaminated with barium, bismuth sulfate, etc. Stool preserved in PVA, duodenal aspirates, rectal swabs, unpreserved specimens > 1 hour old, duplicate specimens from same day, or specimen collected on inpatient hospitalized > 72 hours after admission. Improperly labeled/identified specimens. Expired collection/transport device. Quantity of specimen insufficient. Delay in transport.

TEST DETAILS
Reference interval:
Negative for Giardia Specific Antigen
Critical values/courtesy alerts:
Positive for Giardia Specific Antigen
CPT code(s):
87329
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:
Detection of Giardia Specific Antigen
Methodology:
Rapid Immunochromatographic Assay
Synonyms:
Giardia
Stool
Antigen
Stool Antigen
EIA
Giardiasis
Clinical significance:
Used for the detection of Giardia lamblia from patients with limited travel history in geographic areas where Giardia is the most commen enteric parasite. A positive GSA test result is indicative of active infection. Giardia lamblia antibody is not useful for detection of active infection
Doctoral Director(s:)
Donna Wolk PhD, D(ABMM), Raquel Martinez, PhD, D(ABMM)    
Review Date: 05/06/2019

Performing Locations

Geisinger Medical Center

Performing laboratory: Microbiology
Technical Lead: Pamela Kreis
Frequency: Daily, 2nd shift
Performed stat? No
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