Biomarker Lens

Common biomarkers

  • Hemoglobin
  • Glucose
  • ALT
  • Apolipoprotein B
  • C-Reactive Protein, Cardiac
  • Ferritin
  • Alb/Creat Ratio, Urine
  • Alkaline Phosphatase
  • FSH
  • T4,Free(Direct)

Biomarkers · Chemical

Giardia lamblia Ag, EIA, Stool

LOINC codes
6412-1
Tests that measure Giardia lamblia Ag, EIA, Stool
Labcorp 3, Quest Diagnostics 3

Ranges

Each lab publishes a reference range for the population groups it tests, usually the middle 95% of results. These intervals describe that population, not an optimal or healthy target. How ranges differ

Quest Diagnostics, Giardia and Cryptosporidium Antigen Panel 39441

PopulationInterval
Giardia Antigen, EIA, StoolNot detected
Cryptosporidium Antigen, EIANot detected

Quest Diagnostics test catalog, 39441

Tests

Check the catalog code, specimen, method and preparation for every test that measures Giardia lamblia Ag, EIA, Stool. Select up to five tests to compare them side by side.

Labcorp 3 tests

Single-analyte tests

  • Giardia lamblia , Direct Detection EIA 182204

    Stool · Fasting not stated · Turnaround 2 - 3 days

    Method and collection
    Method
    Enzyme immunoassay (EIA)
    Collection
    Fecal specimens for parasitic examination should be collected before initiation of antidiarrheal therapy or antiparasitic therapy. The highest yield on hospitalized patients occurs when diarrhea is present on admission or within 72 hours of admission. The onset of diarrhea more than 72 hours after admission is usually caused by Clostridium difficile toxin rather than parasites or the usual stool pathogens. The following recommendations are made for efficient and cost-effective diagnosis of diarrheal disease in patients admitted with gastroenteritis. • Submit one or two specimens per diarrheal illness immediately. Consider first requesting the EIA for Giardia and Cryptosporidium (see test Cryptosporidium, Direct Detection EIA [183020] or panel Giardia lamblia, Direct Detection EIA and Cryptosporidium, Direct Detection EIA [183558] . Giardia and Cryptosporidium are the most common causes of parasitic gastroenteritis in the United States. • If EIAs are negative, request add-on testing for Ova and Parasites Examination [008623] and submit an additional stool specimen after five days for O&P examination. • Also consider testing for unusual stool pathogens ( Cyclospora Smear, Stool [183145] ), especially in the immunocompromised patient.
    Reference notes
    Negative
    Labcorp catalog page

  • Giardia lamblia , EIA and Ova and Parasites Examination 188110

    Stool · Fasting not stated · Turnaround 4 - 7 days

    Method and collection
    Method
    Giardia lamblia : enzyme immunoassay (EIA); O & P: concentration with examination of wet preparations and trichrome staining and exam
    Collection
    Patient should be given three collection kits and be instructed to collect three separate specimens 48 hours apart during a period of five to six days. Fecal specimens for parasitic examination should be collected before initiation of antidiarrheal therapy or antiparasitic therapy. The highest yield on hospitalized patients occurs when diarrhea is present on admission or within 72 hours of admission. The onset of diarrhea more than 72 hours after admission is usually caused by Clostridium difficile toxin rather than parasites or the usual stool pathogens. The following recommendations are made for efficient and cost-effective diagnosis of diarrheal disease in patients admitted with gastroenteritis. • Submit one or two specimens per diarrheal illness immediately. Consider requesting the EIA for Giardia (see Giardia lamblia, EIA and Ova and Parasites Examination [188110] or Giardia lamblia, Direct Detection EIA [182204] ) if that is the primary suspected organism. • If those are negative, submit an additional specimen after five days. • Patients who are immunocompromised by AIDS, malignancy, or immunosuppressive therapy may require additional testing for unusual stool pathogens (e.g., Cyclospora Smear, Stool [183145] ).
    Labcorp catalog page

Panels that include this biomarker

  • Giardia lamblia , Direct Detection EIA and Cryptosporidium , Direct Detection EIA 183558

    2 analytes · Stool · Fasting not stated · Turnaround 2 - 5 days

    Method and collection
    Method
    Enzyme immunoassay (EIA)
    Collection
    Fecal specimens for parasitic examination should be collected before initiation of antidiarrheal therapy or antiparasitic therapy. The highest yield on hospitalized patients occurs when diarrhea is present on admission or within 72 hours of admission. The onset of diarrhea more than 72 hours after admission is usually caused by Clostridium difficile toxin rather than parasites or the usual stool pathogens. The following recommendations are made for efficient and cost-effective diagnosis of diarrheal disease in patients admitted with gastroenteritis. • Submit one or two specimens per diarrheal illness immediately. Consider first requesting EIAs for Giardia and Cryptosporidium (See test Giardia lamblia, Direct Detection EIA [182204] or Giardia lamblia, Direct Detection EIA and Cryptosporidium, Direct Detection EIA [183558] ). Giardia and Cryptosporidium are the most common causes of parasitic gastroenteritis in the United States. • If EIAs are negative, request add-on testing for Ova and Parasites Examination [008623] , and submit an additional specimen after five days for O&P examination. • Also consider testing for unusual stool pathogens ( Cyclospora Smear, Stool [183145] ), especially in the immunocompromised patient.
    Labcorp catalog page

Quest Diagnostics 3 tests

Single-analyte tests

  • Giardia Antigen, EIA, Stool 8625

    Stool · Fasting not stated · Turnaround Set up: Tues-Sat; Report available: 4 days

    Method and collection
    Method
    Immunoassay (IA)
    Collection
    Transfer stool within 30 minutes of collection into formalin or Total-Fix vial. Fill to line on transport vial. Mix contents thoroughly until homogenous.
    Reference notes
    See Laboratory Report
    Quest Diagnostics catalog page

Panels that include this biomarker

  • Giardia and Cryptosporidium Antigen Panel 39441

    4 analytes · Stool · Fasting not stated

    Method and collection
    Method
    Immunoassay (IA)
    Collection
    Transfer stool within 30 minutes of collection into Total-Fix vial. Fill to the line on transport vial. Mix contents thoroughly until homogenous. The patient must not use barium products, antacids, antidiarrheal medications, or laxatives containing oil prior to collection of a specimen for parasitological exam.
    Quest Diagnostics catalog page

  • Ova and Parasites with Giardia Antigen 1748

    5 analytes · Stool · Fasting not stated

    Method and collection
    Method
    Concentration with Microscopic Exam • Trichrome Stain • Immunoassay (IA)
    Preparation
    Interfering substances: Bismuth, barium (wait 7-10 days), antimicrobial agents (wait 2 weeks), gallbladder dye (wait 3 weeks after procedure)
    Reference notes
    See individual tests
    Quest Diagnostics catalog page

0 of 5 tests selected

Pick one more

Sources

Verify these ranges and sources

We compile this page from named laboratory catalogs, guidelines and studies. Labs calculate reference intervals from the people they test, for one assay method and one population group, so an interval describes that population rather than an optimal target.

Interpret your own results with a licensed clinician, or track your lab history and health goals in Aumnivida.

Spotted an error? Email hello@biomarkerlens.com with the page URL and the primary source that corrects the entry.