Sorted By Test Name - Mayo Medical Laboratories

FUNID
8223
CTBID
80278
Reference Values:
Class IgE kU/L Interpretation
0 Negative
1 0.35-0.69 Equivocal
2 0.70-3.49 Positive
3 3.50-17.4 Positive
4 17.5-49.9 Strongly positive
5 50.0-99.9 Strongly positive
6 > or =100 Strongly positive Reference values
apply to all ages.
Clinical References: Homburger HA: Allergic diseases. In Clinical Diagnosis and Management by
Laboratory Methods. 21st edition. Edited by RA McPherson, MR Pincus. New York, WB Saunders
Company, 2007, Chapter 53, Part VI, pp 961-971
Culture Referred for Identification, Fungus
Clinical Information: Organisms are referred to confirm an identification or when an identity is
unknown. This may provide helpful information regarding the significance of the organism, its role in the
disease process, and its possible origin.
Useful For: Identification of pure isolates of filamentous fungi and yeast
Interpretation: Genus and species are reported on fungal isolates whenever possible.
Reference Values:
Not applicable
Clinical References: Shea YR: Algorithms for detection and identification of fungi. In Manual of
Clinical Microbiology. Ninth edition. Edited by PR Murray, EJ Baron. Washington DC. ASM Press,
2007, pp 1745-1761
Culture Referred for Identification, Mycobacterium
Clinical Information: Both Mycobacterium and Nocardia include pathogenic and nonpathogenic
species. Traditional speciation based on growth characteristics and biochemical reaction patterns is
time-consuming and often does not differentiate between closely related species. In this test, nucleic acid
hybridization probes are utilized that identify specific ribosomal RNA sequences of Mycobacterium
tuberculosis complex, Mycobacterium avium complex, and Mycobacterium gordonae. Organisms that are
not identified by nucleic acid hybridization probes are further tested and speciated by nucleic acid
sequencing of a 500-base pair region of the 16S ribosomal RNA gene.
Useful For: Rapid identification to the species level of Mycobacterium, Nocardia, and other aerobic
actinomycetes from pure cultures
Interpretation: Organisms growing in pure culture are identified to the species level whenever
possible.
Reference Values:
Not applicable
Clinical References: Pfyffer GE: Mycobacterium: general characteristics, laboratory detection, and
staining procedures. In Manual of Clinical Microbiology
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