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Reference Laboratory
Tests
 
90827
Trypanosoma cruzi Antibody, Total print

Antibodies are found in most patients with acute or chronic American Trypanosomiasis.

Immunoassay
Nonreactive
0.5 mL serum
(0.2 mL minimum)
Room temperature
1 to 5 days
86753
 
17609
Saccharomyces cerevisiae Antibodies (ASCA) (IgG, IgA) - NEW! print

 

Test performed at Quest Diagnostics Nichols Institute.

Enzyme Linked Immunosorbent Immunoassay
S cerevisiae Ab (IgA):
< or = 20.0 Negative
20.1-24.9 Equivocal
> or 25.0 = Positive
S cerevisiae Ab (IgG):
< or = 20 Negative
20.1-29.9 Equivocal
> or = 30 Positive
2 mL (0.6 mL minimum) serum
Room temperature
1-4 days
86671 (x2)
 
10998
Ganglioside Antibody Panel 4 print

Includes:

  • Ganglioside GM-1 Antibodies (IgG AND IgM), EIA
  • Ganglioside Asialo-GM-1 Antibody (IgG), EIA
  • Ganglioside Asialo-GM-1 Antibody (IgM), EIA
  • Ganglioside GD1a Antibody (IgG), EIA
  • Ganglioside GD1a Antibody (IgM), EIA
  • Ganglioside GD1b Antibody (IgG), EIA
  • Ganglioside GD1b Antibody (IgM), EIA

See individual assays
See individual assays
3 mL serum
(1.4 mL min)
Refrigerated (2-8° C)
 
83520 (x8)
 
46300
Mycoplasma pneumoniae DNA, Qualitative Real-Time PCR print

Mycoplasma pneumoniae DNA real-time PCR is a highly sensitive method to detect the presence of Mycoplasma pneumoniae DNA in clinical specimens.

This test is approved for New York patient testing.

Real-Time PCR
Not detected
1 mL bronchial wash/lavage or sputum
(minimum 0.3 mL)
OR
Throat swab or nasopharyngeal swab in 3 mL
(minimum 0.35 mL)
M4 media or V-C-M medium (green-cap) tube or equivalent
1 mL (0.35 mL minimum) CSF, pleural fluid, pericardial fluid or >3mm(3) tissue
Tissue: Frozen

All others: Refrigerated 2-8° C
1 to 2 days
87581
 
34270
Mycoplasma pneumoniae Culture print

Mycoplasma pneumoniae is one of the principal etiologic agents responsible for primary atypical pneumonia (often called walking pneumonia) as well as more mild forms of upper respiratory illness. Primary atypical pneumonia may be a severely debilitating disease and may infect otherwise healthy individuals.

This test is approved for New York patient testing.

Culture
None isolated
Throat swab collected in VCM medium (green-cap) tube or equivalent (UTM) container
Lung tissue, pleural fluid, pericardial fluid collected in VCM medium (green-cap) tube or equivalent (UTM) container, nasopharyngeal aspirate or swab, bronchial lavage/wash (1 mL or 1 swab minimum) collected in a VCM medium (green-cap) tube or equivalent (UTM) container.
Frozen -70° C on dry ice
3-4 weeks
87109
 
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21130
Mycoplasma pneumoniae Antibody (IgM) print

Mycoplasma are the smallest of the free-living organisms. M. pneumoniae causes approximately 10-20% of all of pneumonia. These pneumonias that can affect otherwise healthy individuals, are commonly referred to as ''walking'' and ''atypical'' pneumonias.

Immunoassay
<770 U/mL
1 mL (0.1 mL minimum) serum
Refrigerated (2-8° C)
1 to 4 days
86738
 
659
Mycoplasma pneumoniae Antibody (IgG) print

Mycoplasma are the smallest of the free-living organisms. M. pneumoniae causes approximately 10-20% of all of pneumonia. These pneumonias that can affect otherwise healthy individuals, are commonly referred to as ''walking'' and ''atypical'' pneumonias.

Immunoassay
<=0.90
1 mL (0.1 mL minimum) serum
Refrigerated (2-8° C)
1 to 4 days
86738
 
34127
Mycoplasma pneumoniae Antibodies (IgG, IgM) print

Mycoplasma are the smallest of the free-living organisms. M. pneumoniae causes approximately 10-20% of all of pneumonia. These pneumonias that can affect otherwise healthy individuals, are commonly referred to as ''walking'' and ''atypical'' pneumonias.

Immunoassay
See individual tests
1 mL (0.2 mL minimum) serum
Refrigerated (2-8° C)
1 to 4 days
86738 x2
 
871
Mycoplasma hominis/Ureaplasma Culture print

Ureaplasma urealyticum and Mycoplasma hominis are primarily associated with genital tract colonization and disease in adults and respiratory tract colonization and disease in newborns. Though controversial, these organisms have been associated with endometritis, chorioamnionitis, premature rupture of membranes, stillbirth, premature birth, low birth weight, post-partum infections, and infertility. Of particular concern is the causal relationship between central nervous system infections in the premature newborn and U. urealyticum.

This test is approved for New York patient testing.

Culture
None isolated
(1 mL or 1 swab minimum) Urogenital (vaginal, cervical, urethral swabs or vaginal secretions) collected in VCM medium (green-cap) tube or equivalent (UTM) container.
Urine, sterile body fluids, tissue, wounds (swab), respiratory (sputum, bronchial washing, tracheobronchial secretions, bronchial alveolar lavage, nasopharyngeal or throat swabs) collected in a VCM medium (green-cap) tube or equivalent (UTM) container (see instructions).
Frozen -70° C on dry ice
7 to 10 days
87109
 
50776
Mycobacterium avium Complex MIC Panel print

Susceptibility testing is performed by a broth microdilution method that includes: Amikacin, Ciprofloxacin, Clarithromycin, Ethambutol, Ethionamide, Isoniazid, Linezolid, Moxifloxacin, Rifampin, Rifabutin, Streptomycin. Clarithromycin is the only antimicrobial for which CLSI interpretive guidelines are established.

Identification of the isolate is required.

Linezolid and moxifloxacin will be tested with results released only for isolates non-susceptible to clarithromycin.

*This test was performed using a kit that has not been cleared or approved by the FDA. The analytical performance characteristics of this test have been determined by Focus Diagnostics. This test should not be used for diagnosis without confirmation by other medically established means.

This test is approved for New York patient testing.

Broth Dilution
By report
1 slant, plate, or broth

Pure culture of isolate safely contained. Identification of isolate is required

Container type:
Lowenstein-Jensen, Middlebrook 7H10 agar slant/plate or equivalent, or positive AFB broth medium (requires subculture prior to testing) Must be submitted in a double walled container or in 95K bag under room temperature.
Room temperature
28 to 35 days
87186*
 
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50777
Mycobacterium avium Complex MIC and Drug Combinations print

Susceptibility testing is performed by a broth microdilution method that includes: Amikacin, Ciprofloxacin, Clarithromycin, Ethambutol, Ethionamide, Isoniazid, Linezolid, Moxifloxacin, Rifampin, Rifabutin, Streptomycin.

Drug Combinations are tested using Agar proportion: Ethambutol plus different concentrations of Clarithromycin, Erythromycin, Rifampin, or Rifabutin.

Linezolid and moxifloxacin will be tested with results released only for isolates non-susceptible to clarithromycin.

Clarithromycin is the only antimicrobial for which CLSI interpretive guidelines are established.

Identification of the isolate is required.

*This test was performed using a kit that has not been cleared or approved by the FDA. The analytical performance characteristics of this test have been determined by Focus Diagnostics. This test should not be used for diagnosis without confirmation by other medically established means.

Broth Dilution
By report
1 slant, plate or broth

Pure culture of isolate safely contained. Identification of isolate is required

Container type:
Lowenstein-Jensen, Middlebrook 7H10 agar slant/plate or equivalent, or positive AFB broth medium (requires subculture prior to testing) Must be submitted in a double walled container or in 95K bag under room temperature
Room temperature
21 to 35 days
87186*; 87190 x 5
 
37357
Legionella Culture, Environmental print

Legionellae are found widespread in water sources, especially in warmer waters of plumbing systems and cooling towers. Infection often occurs through aerosol inhalation of contaminated water.

This test is approved for New York patient testing.

Culture
None isolated
250 mL (100 mL minimum) water collected in a sterile leak-proof container
Culture swab of environmental water-related surface in liquid Amies (red-cap) or gel Amies (blue-cap) transport medium.
Refrigerated (2-8° C)
7-10 days
99199
 
688
Legionella Culture print

Bacteria in the genus Legionella primarily cause respiratory illness, i.e. either Legionnaires' disease, a systemic illness manifested primarily by pneumonia, or Pontiac fever, a nonpneumonic, influenza-like illness. Legionellae may also cause a variety of other illnesses.

This test is approved for New York patient testing.

Culture
None isolated
1 g Lung tissue, fresh (unfixed) tissue, 3 mL (2 mL minimum) bronchial washings, sputum, bronchial alveolar lavage, pleural fluid, nasopharyngeal lavage/wash or tracheal lavage/wash collected in a sterile leak-proof container
2-8° C
7-10 days
87081
 
34475
Legionella pneumophila Direct Detection, DFA print

1 g Lung tissue or fresh (unfixed) tissue, 3 mL (2 mL minimum) bronchial washings, sputum, bronchial alveolar lavage, pleural fluid, nasopharyngeal lavage/wash or tracheal lavage/wash collected in sterile leak-proof container

This test is approved for New York patient testing.

Direct Immunofluorescence Assay (DFA)
Not detected
Clinical specimen on 2 heat
fixed slides, or clinical specimen
(minimum 2 mL), or pure culture safely contained.
2-8° C
1-2 days
87278
 
8856
Legionella Antigen, EIA (Urine) print

Legionella pneumophila is responsible for 80-85% of reported cases of Legionella infections in the United States, and most of these infections are caused by L. pneumophila serogroup 1. The detection of L. pneumophila serogroup 1 soluble antigen in urine by EIA is a highly sensitive and specific method for the laboratory diagnosis of infection in these cases. L. pneumophila serogroup 1 antigenuria can occur 2-3 days after infection and may persist for prolonged periods after treatment in some patients. A negative test result does not rule out the possibility of infection due to other serogroups or Legionella species, since this test only detects L. pneumophila serogroup 1 antigen.

This test is approved for New York patient testing.

EIA (Enzyme Immunoassay)
Not Detected
1 mL (0.5 mL minimum) urine in a sterile screw cap container
Refrigerated (2-8° C)
1 to 4 days
87449
 
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91212
Histoplasma Galactomannan Antigen, Urine print

Histoplasma galactomannan is frequently detected in urine from patients with disseminated histoplasmosis.

Immunoassay
<0.5 ng/mL
10 mL random urine in a sterile leak-proof container
Room temperature
 
87385
 
91245
Helicobacter pylori Culture with Reflex to Susceptibility print

Helicobacter pylori has been associated with peptic ulcer disease and cancers of the gastrointestinal tract. In 1994, the U.S. National Institute of Health Consensus Development Conference concluded that H. pylori infection represents the major cause of peptic ulcer disease and antimicrobial treatment is recommended for patients with the confirmed disease.

If Helicobactor pylori culture result is "Isolated", then Antimicrobial Suscept, Helicobacter pylori, MIC Panel will be performed at an additional charge (CPT code: 87181 (x4)).

Culture
Not Isolated
3mm (1mm minimum)
Gastric biopsy in Brucella broth or equivalent with 10-20% glycerol. Stuart's liquid transport medium, not in a swab container.
Refrigerated (2-8° C)
 
87081; 87205
 
51570
Helicobacter pylori Culture print

Helicobacter pylori is detectable in nearly 100% of adult patients with a duodenal ulcer and about 80% of patients with gastric ulcer. An association with gastric cancer is now confirmed. A Gram stain will be performed on each specimen; a positive Gram stain has been reported to be up to 100% specific for H. pylori, a curved gram negative bacillus. When obtaining biopsy specimens, substances such as cimetidine and benzocaine, which inhibit the growth of H. pylori, should be avoided. Contamination of biopsy forceps with gluteraldehyde also inhibits growth. Cultures are held for up to 14 days.

This test is approved for New York patient testing.

Culture
Not Isolated
3mm (1mm minimum)
Gastric biopsy in Brucella broth or equivalent with 10-20% glycerol. Stuart's liquid transport medium, not in a swab container.
Refrigerated (2-8° C)
7 to 10 days
87081; 87205
 
34123
Helicobacter pylori Antibody (IgM) print

Gastric colonization by Helicobacter pylori has been implicated as a cofactor in the development of some cases of gastritis and peptic or duodenal ulcer. Gastroduodenal disease caused by H. pylori can be successfully treated with antimicrobial therapy. The clinical utility of H. pylori IgM antibody measurement has not been clearly established. H. pylori IgM testing may result in false positives. To identify active H. pylori infection, a urea breath test or stool antigen test should be considered if clinically indicated.

*This test was performed using a kit that has not been cleared or approved by the FDA. The analytical performance characteristics of this test have been determined by Focus Diagnostics. This test should not be used for diagnosis without confirmation by other medically established means.

This test is approved for New York patient testing.

EIA (Enzyme Immunoassay)
Negative
1 mL Serum
(minimum 0.2 mL)
Room temperature
1 to 4 days
86677*
 
29407
Helicobacter pylori Antibody (IgG) print

Gastric colonization by Helicobacter pylori has been implicated as a cofactor in the development of some cases of gastritis and peptic or duodenal ulcer. Gastroduodenal disease caused by H. pylori can be successfully treated with antimicrobial therapy. Eradication of H. pylori infection has been associated with decreasing IgG and IgA antibody levels to H. pylori. As IgG levels to H. pylori are encountered in a large percentage of adults, clinicians should be aware that age-related acquisition of H. pylori contributes to the age-related increase in the incidence of H. pylori antibody. Measurement of antibodies to H. pylori is not recommended for the diagnosis of active infection. The American College of Gastroenterology and the American Gastroenterological Association recommend either the urea breath test or the fecal antigen test for diagnosis and confirmation of eradication in cases of suspected or proven H. pylori infection.

This test is approved for New York patient testing.

EIA (Enzyme Immunoassay)
Negative
1 mL (0.5 mL minimum) serum
Room temperature
1 to 4 days
86677
 
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20325
Helicobacter pylori Antibodies (IgG, IgA, IgM) print

See individual assay for description.

Panel Includes:

  • Helicobacter pylori IgG Antibody, EIA
  • Helicobacter pylori IgA Antibody, EIA
  • Helicobacter pylori IgM Antibody, EIA

This test is approved for New York patient testing.

EIA (Enzyme Immunoassay)
Negative
1 mL (0.9 mL minimum) serum
Room temperature
1 to 4 days
86677 x3
 
37695
Helicobacter pylori Antibodies (IgG, IgA) print

See individual assay for description.

Panel Includes:

  • Helicobacter pylori IgG Antibody, EIA
  • Helicobacter pylori IgA Antibody, EIA

This test is approved for New York patient testing.

EIA (Enzyme Immunoassay)
Negative
1 mL (0.4 mL minimum) serum
Room temperature
1 to 4 days
86677 x2
 
34122
Helicobacter pylori Antibody (IgA) print

Gastric colonization of Helicobacter pylori has been implicated as a cofactor in the development of some cases of gastritis and peptic or duodenal ulcer. Gastroduodenal disease caused by H. pylori can be successfully treated with antimicrobial therapy. In some patients without detectable IgG antibody to H. pylori, determination of IgA levels may be useful in establishing H. pylori infection.

*This test was performed using a kit that has not been cleared or approved by the FDA. The analytical performance characteristics of this test have been determined by Focus Diagnostics. This test should not be used for diagnosis without confirmation by other medically established means.

This test is approved for New York patient testing.

ELISA (Enzyme Linked Immunosorbent Assay)
Negative
1 mL (0.2 mL minimum) serum
Room temperature
1 to 4 days
86677*
 
35135
Haemophilus influenzae Type b Antibody (IgG) print

Antibody to polyribosylribitol phosphate (PRP), the capsular polysaccharide of Haemophilus influenzae type b, is measured in mcg/mL, based on correlations with a reference Farr immunoprecipitation assay (RIA). A significant increase in the PRP antibody level between pre- and post-immunization sera is considered evidence of effective vaccination.

This test is approved for New York patient testing.

ELISA (Enzyme Linked Immunosorbent Assay)
> or = 1.00 mcg/mL
1 mL serum
(minimum 0.2 mL)
Room temperature
1 to 4 days
86684
 
91307
Echinococcus Antibody (IgG), EIA with Reflex to Western Blot print

Echinococcus IgG detection is an important tool for diagnosing hydatid disease, since infected individuals do not exhibit fecal shedding of E. granulosus eggs.

If the Echinococcus IgG result is Positive, then the Echinococcus Ab (IgG), Western Blot will be performed at an additional charge (CPT code: 86682).

Immunoassay
Negative
1 mL serum collected in a red-top tube (no gel) (0.2 mL minimum)
Room temperature
1-5 days
86682
 
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40280
Coccidioides Antibody, Complement Fixation, Serum print

All serum titers >=1:2 must be considered presumptive evidence of coccidioidomycosis, although titers of 1:2 and 1:4 should be confirmed by immunodiffusion testing. Positive results by both CF and ID are diagnostic. Titers exceeding 1:16 usually reflect disseminated disease. In general, the higher the titer, the more severe the disease, and changes in serial titers are also of prognostic value. A negative CF test does not, however, rule out the diagnosis. Patients with cavitary disease are only 70% positive, and with nodular diseases, only 30% positive.

This test is approved for New York patient testing.

CF (Complement Fixation)
<1:2
1 mL serum
(minimum 1 mL)
2-8° C
2 to 5 days
86635
 
-95
GAD Antibody (See Glutamic Acid Decarboxylase) print

 
-96
Ganciclovir, Susceptibility Testing (See Antiviral Susceptibility, Ganciclovir)
38916
Ganglioside GD1a Antibody (IgG), EIA print

Ganglioside GD1a antibody IgG is associated with acute motor axonal neuropathy, sometimes followed by Campylobacter jejuni infections. Ganglioside GD1a antibody IgG can aid in the diagnosis of acute motor axonal neuropathy variant of Guillain-Barre syndrome.

Enzyme Immunoassay
<1:100
1 mL serum
(0.2 mL min)
Refrigerated (2-8° C)
 
83520
 
38964
Ganglioside GD1a Antibody (IgM), EIA print

Ganglioside GD1a antibody IgM is associated with the presence of multifocal motor neuropathy, sometimes in association with IgM monoclonal gammopathy. Antibody testing can aid in the diagnosis of multifocal neuropathy or predominantly motor neuropathy.

Enzyme Immunoassay
<1:100
1 mL serum
(0.2 mL min)
Refrigerated (2-8° C)
 
83520
 
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37093
Ganglioside GM-1 Antibodies (IgG AND IgM), EIA print

Ganglioside GM-1 antibody IgG is associated with the Guillain-Barre syndrome, particularly the acute motor axonal neuropathy variant. Antibody IgM is associated with chronic multifocal motor neuropathy.

Enzyme Immunoassay
<1:800
1 mL serum
(0.2 mL minimum)
Refrigerated
 
83520 (x2)
 
34144
Ganglioside GQ1b Antibody (IgG), EIA print

Ganglioside GQ1b antibody IgG can serve as an aid in the diagnosis of acute ataxia neuropathy with ophthalmoplegia or with the Miller-Fisher syndrome.

Enzyme Immunoassay
<1:100
1 mL (0.2 mL min) serum
Room temperature
 
83520
 
15114
Gastric Parietal Cell Antibody, ELISA print

 

Test performed at Quest Diagnostics Nichols Institute.

Enzyme Linked Immunosorbent Immunoassay
<=20.0 Negative U
20.1-24.9 Equivocal U
>=25.0 Positive U
1 mL (0.3 mL minimum) serum
Refrigerated (2-8° C)
2 to 5 days
83516
 
-267
Genetic testing print

Genetic screening and diagnostic testing is performed at Quest Diagnostics Nichols Institute.
For a listing of tests and specimen requirements, visit www.QuestDiagnostics.com.

 
40500
Giardia Antibody, IFA print

A polyvalent conjugate (recognizing IgG, IgM, and IgA) is used to detect the presence of antibodies to Giardia lamblia. A four-fold or greater increase in titer between acute and convalescent sera indicates an acute active phase. A single positive reaction represents previous exposure, since antibody titers are known to remain high for at least six months.

This test is not approved for New York patient testing.

IFA (Immunofluorescence Assay)
<1:16
1 mL serum
(minimum 0.075 mL)
2-8° C
1 to 3 days
86674
 
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8625
Giardia Antigen, EIA, Stool print

Giardia is a protozoan that can cause diarrhea. Infection occurs after ingestion of contaminated food or water. Antigen detection is considered an alternative to stool examination.

This test is approved for New York patient testing.

Immunoassay
Not Detected
10 grams or 10 mL (5 grams or 5 mL minimum) stool preserved in 10% formalin or Total-Fix® transport vial
Stool collected in Sodium Acetate-Acetic Acid Formalin (SAF), Cary-Blair or fresh unpreserved stool (no preservative or transport media).
Preserved: Room temperature
Cary-Blair: Refrigerated
Fresh: Frozen
1 to 2 days
87329
 
46056
Giardia lamblia IgA Antibody, IFA print

Recent or current infection by Giardia lamblia is suggested by either detection of specific IgM antibody or a four-fold increase in IgG and/or IgA antibody titers between acute and convalescent sera. Positive IgG and/or IgA titers without detectable IgM suggest past infection.

This test is not approved for New York patient testing.

IFA (Immunofluorescence Assay)
IgA <1:16
1 mL serum
(minimum 0.5 mL)
2-8° C
1 to 3 days
86674
 
55122
Giardia Antigen, EIA, Stool print

Giardia Specific Antigen (GSA) is a glycoprotein that is produced in abundant quantities by Giardia lamblia as they multiply within the host intestinal tract. The antigen is present only when Giardia infection is present, and it is possible to find GSA in stool specimens without visible signs of cysts or trophozoites.

This test is approved for New York patient testing.

EIA (Enzyme Immunoassay)
Not Detected
10 grams stool submitted in Ova and Parasite preservative container including: 10% formalin (preferred), SAF, MF, or equivalent
Stool in Cary Blair transport medium (or equivalent), or a clean, leak-proof plastic container (no preservative or transport media).
Preserved: Room temperature
Cary Blair: Refrigerated
Unpreserved stool: Frozen
1 to 4 days
87329
 
46052
Giardia lamblia IgG Antibody, IFA print

Recent or current infection by Giardia lamblia is suggested by either detection of specific IgM antibody or a four-fold increase in IgG and/or IgA antibody titers between acute and convalescent sera. Positive IgG and/or IgA titers without detectable IgM suggest past infection.

This test is not approved for New York patient testing.

IFA (Immunofluorescence Assay)
IgG <1:16
1 mL serum
(minimum 0.5 mL)
2-8° C
1 to 3 days
86674
 
46050
Giardia lamblia IgG, IgA, IgM Antibody Panel, IFA print

Recent or current infection by Giardia lamblia is suggested by either detection of IgM antibody or a four-fold increase in IgG and/or IgA antibody titers between acute and convalescent sera. Positive IgG and/or IgA titers without detectable IgM suggest past infection.

This test is not approved for New York patient testing.

IFA (Immunofluorescence Assay)
IgG <1:16
IgA <1:16
IgM <1:20
2 mL serum
(minimum 0.5 mL)
2-8° C
1 to 3 days
86674 x 3
 
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46054
Giardia lamblia IgM Antibody, IFA print

Recent or current infection by Giardia lamblia is suggested by either detection of specific IgM antibody or a four-fold increase in IgG and/or IgA antibody titers between acute and convalescent sera. Positive IgG and/or IgA titers without detectable IgM suggest past infection.

This test is not approved for New York patient testing.

IFA (Immunofluorescence Assay)
IgM <1:20
1 mL serum
(minimum 0.5 mL)
2-8° C
1 to 3 days
86674
 
21540
Glomerular Basement Membrane Antibody (IgG) print

Glomerular basement membrane (GBM) antibodies are identified by reactivity with the non-collagenous portion of type IV collagen. Nearly all patients with Goodpasture's syndrome exhibit GBM antibodies.

Test performed at Quest Diagnostics Nichols Institute.

EIA (Enzyme Immunoassay)
<1.0 AI
1 mL serum
(minimum 0.3 mL)
Room temperature
4 to 7 days
83520
 
25000
Glutamic Acid Decarboxylase-65 Autoantibodies print

Antibodies recognizing the islet cell antigen glutamic acid decarboxylase (GAD) are found in over 80% of insulin-dependent diabetes mellitus (IDDM) patients, and are also present prior to clinical onset. GAD antibody detection is the most sensitive marker for identifying persons at risk for developing IDDM.

Test performed at Quest Diagnostics Nichols Institute.

Radiobinding Assay
<=1.0 U/mL
1 mL serum
(minimum 0.25 mL)
2-8° C
2 to 8 days
83519
 
-98
Gonococcal (See Neisseria gonorrhoeae) print

 
51125
Gram Stain, LM print

This preeminent differential stain is used to demonstrate the morphology and staining properties of bacteria and fungi that are directly detected in clinical specimens.

This test is approved for New York patient testing.

Light Microscopy
No organisms seen
Sterile body fluids (including CSF), lower respiratory secretions (including but not limited to: bronchial alveolar lavage (BAL), bronchial brushings, sputum), exudates, aspirates, lesion material, ocular specimens, tissue, and appropriate specimens on swabs

Isolates (liquid media such as thioglycollate broth, solid media, blood culture/platelets)

Smear or appropriate material, air dried and fixed prior to shipment

(minimum one properly prepared slide (air dried and heat or methanol fixed) or any amount of material)

2-3 mL fluid
1-2 grams tissue
2 swabs
2 slides
Room temperature:
Anaerobic transport devices
Isolates
Slides

Refrigerated (2-8° C)
Whole specimens in sterile containers
Specimens on swabs

1 to 3 days
87205
 
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-99
Group B Streptococcus (See Streptococcus, Group B)
57500
Coccidioides immitis Identification, DNA Probe print

Conventional laboratory identification methods used to identify Coccidioides immitis include growth on fungal media, growth rate, and colonial and microscopic morphology. Once the organism begins to grow in culture, it may take many days of additional growth before the characteristic microscopic appearance of sportulation is observed. This test utilizes a chemiluminescent-labeled, single-stranded DNA probe that hybridizes to specific ribosomal RNA sequences that are unique to C. immitis. Colonies are identified as soon as growth is visible, with no need to wait for sportulation to occur. The sensitivity and specificity of this test both approach 100%.

This test is approved for New York patient testing.

Nucleic Acid Hybridization
Not Detected
Pure culture suspected Coccidioides safely contained
Room temperature
1 to 4 days
87149
 
4408
Clostridium difficile Cytotoxicity Assay print

Clostridium difficile produces two toxins: toxin A, an enterotoxin which causes destruction to the colonic epithelium, and toxin B, an extremely active cytotoxin. Toxin B causes cytopathic effects in many types of cell cultures. Toxigenic strains of C. difficile produce both toxins, except in extremely rare instances. The cytotoxin assay for C. difficile uses a cell culture system which detects toxin B.

This test is approved for New York patient testing.

Tissue Culture
Not detected
2 mL or 2 g frozen fresh stool (1 mL or 1g minimum) in sterile screw cap container.

Collect fresh stool in sterile, leakproof container without media, preservative or metal ion. For patients requiring the use of diapers, first line the diaper with clean plastic to prevent absorption. Then transfer 2 g or 2 mL of the stool specimen from the plastic lined diaper to the sterile container. Cap securely. Do not submit the diaper itself. Cap securely. Do not use M4 transport media. Do not use any preservative, media or additive.
FROZEN
2 to 3 days
87230
 
690
Chlamydia trachomatis Culture print

Chlamydiae are obligate intracellular parasites responsible for a variety of ocular, urogenital, and respiratory diseases. Centrifugation-enhanced cultures are stained with a fluorescent monoclonal antibody specific for C. trachomatis and C. psittaci inclusion bodies.

This test is approved for New York patient testing.

Tissue Culture/Immunofluorescence
Not isolated
Endocervical swab or urethral swab, conjunctival swab, throat swab, nasal/nasopharyngeal swab, rectal mucosa swab (without feces), fresh (unfixed) tissue, 3 mL pelvic washing (1 mL minimum) in VCM medium (green-cap) tube or equivalent preferred.
Vaginal swab on children <12 or women with hysterectomy or seminal fluid or peritoneal fluid acceptable.

To maintain optimum viability, place swab or fluid into VCM (equal volumes of fluid and VCM) or equivalent and transport the specimen to the laboratory as soon as possible. Best recovery is obtained when the specimens are refrigerated at 2-8°C or kept on wet ice following collection and while in transit. If there will be a long delay before processing, specimens in VCM or equivalent should be frozen at -70°C or colder and transported on dry ice. Storage or transport at -20°C is not acceptable. Raw (unpreserved) samples should only be refrigerated and not frozen.
Refrigerated (2-8° C)
2 to 4 days
87110; 87140
 
496600
Chlamydia trachomatis Antigen, DFA print

The chlamydia DFA test detects the presence of the infectious elementary body.

This test is approved for New York patient testing.

Direct Fluorescent Antibody
Not detected
Conjunctival, endocervical , urethral, rectal, or nasopharyngeal mucous on clean slide transported in glass slide mailer
Conjunctival, urethral, rectal, endocervical or nasopharyngeal specimen swabs in VCM or equivalent.

Use Pathfinder® Chlamydia trachomatis Direct Specimen Collection kit slide. Alternatively prepare slide and fix with ACS grade methanol, acetone-free. Prior to specimen collection, remove and discard mucous and exudates/pus to prevent interference with assay performance.
Specimens: Refirgerated
Slides: Room temperature
1 to 2 days
87299
 
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