Overview: Stool Comprehensive Antigen ICT 1 TestIntroduction: The Stool Comprehensive Antigen ICT 1 Test screens stool antigens to diagnose gastrointestinal infections, causing diarrhea or fever. Aligned with 2023 IDSA guidelines, it uses immunoassays for high specificity, supporting infection screening. This test is critical for guiding diagnosis, treatment planning, and improving outcomes in clinical pathology for patients with suspected gastrointestinal infections. Note: No specific test parameters provided in input data.
Other Names: Stool Antigen ICT Assay, Gastrointestinal Antigen Test.
FDA Status: Laboratory-developed test (LDT), meeting clinical pathology standards for diagnostic accuracy.
Historical Milestone: Stool antigen testing began in the 1990s with rapid diagnostics. Immunoassay methods improved in the 2000s, enhancing diagnostic precision.
Purpose: Screens stool antigens to diagnose gastrointestinal infections, guides treatment, and evaluates patients with diarrhea or fever.
Test Parameters: Not specified in input data; typically includes multiple pathogen antigens.
Pretest Condition: No fasting required. Collect stool. Report history of diarrhea, fever, or gastrointestinal symptoms.
Specimen: Stool (sterile container, 5-10 gm). Transport in a biohazard container.
Sample Stability at Room Temperature: 2 hours
Sample Stability at Refrigeration: 24 hours
Sample Stability at Frozen: Not frozen
Medical History: Document diarrhea, fever, or history of gastrointestinal infections. Include current medications, especially antibiotics.
Consent: Written consent required, detailing the tests purpose, gastrointestinal infection implications, and risks of sample collection.
Procedural Considerations: Uses immunochromatographic assay (ICT) to screen for pathogen antigens. Results are available in 1-2 days, supporting clinical decisions. Performed in laboratories, often for gastrointestinal infection diagnosis.
Factors Affecting Result Accuracy: Improper stool collection or delayed transport can affect results. Antibiotic use may reduce sensitivity.
Clinical Significance: Positive antigens confirm gastrointestinal infection, guiding antibiotic or supportive therapy. Negative results may require culture or PCR.
Specialist Consultation: Consult an infectious disease specialist or gastroenterologist for result interpretation and treatment planning.
Additional Supporting Tests: Stool culture, PCR, or endoscopy to confirm gastrointestinal infection diagnosis.
Test Limitations: Limited to detectable antigens; clinical correlation is needed. Sample quality affects sensitivity.
References: IDSA Gastrointestinal Infection Guidelines, 2023; Clinical Infectious Diseases, Shane AL, 2022.
