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Test Code GCS Giardia Cryptosporidium Screen

Infectious

Performing Laboratory

YRMC, Microbiology

Day(s) Test Set Up

Monday through Friday 0600 to 1900

Saturday to Sunday 0600 to 1400

Specimen Requirements

Preserved Stool Specimens

Stool specimens must be submitted in appropriate transport media. Acceptable transport media include the following: SAF, 10% Formalin, MIF, Cary-Blair, Para-Pak C&S, or Stuarts transport media.

 

Fresh (unpreserved) stool specimens

Solid, semi-solid or liquid samples are acceptable if submitted in clean, leak-proof plastic containers. Fresh stool specimens must be placed in approved transport media within 2 hours of collection. In order to maintain the appropriate ratio of specimen to transport media, specimen should be added only to the line indicated on the transport container

 

Unacceptable specimens

1. Specimens submitted in PVA

2. Colonic washes, aspirates or other diluted specimens.

3. Stool specimens contaminated by products with an oily or particulate base (e.g. Barium, mineral oil or radiologic contrast media).

Specimen Transport Temperature

Specimen Storage:

1. Formalin and SAF preserved specimens can be stored frozen (-20 C or -70° C), refrigerated (2 – 8° C) or at room temperature (20 – 30° C) and should be tested within two months after collection.

2. Cary-Blair or C&S diluted samples can be stored refrigerated (2 – 8° C) and tested within two weeks after collection or frozen (-20° C) and tested within two months. 

3. MIF preserved specimens can be stored frozen (-20° C), refrigerated (2 – °8 C) or at room temperature (20 – 30° C) and should be tested within two months after collection.

Reference Values

Giardia Antigen Not Detected

 

Cryptosporidium Antigen Not Detected

Test Classification and CPT Coding

87329

87328

 

This test has been cleared or approved by the U.S. Food and Drug Administration and is performed according to manufacturer’s instructions. Performance characteristics for this test have been verified by Yuma Regional Medical Center Laboratory in compliance with CLIA recommendations.

Collection Instructions

Refer to Specimen requirements for specific specimen collection instructions.

Methodology

Qualitative immunochromatographic assay that simultaneously detects and distinguishes between Cryptosporidium and Giardia antigens

Loinc Code

49233-0