Sorted By Test Name - Mayo Medical Laboratories

GRAM
8078
81990
LAGGT
8976
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
Gram Stain
Clinical Information: The gram stain is a general stain used extensively in microbiology for the
preliminary differentiation of microbiological organisms. The Gram stain is one of the simplest, least
expensive, and most useful of the rapid methods used to identify and classify bacteria.
Useful For: The gram stain is used to provide preliminary information concerning the type of
organisms present directly from clinical specimens or from growth on culture plates. This stain is used to
identify the presence of microorganisms in normally sterile body fluids (CSF, synovial fluid, pleural fluid,
peritoneal fluid). It is also used to screen sputum specimens to establish acceptability for bacterial culture
(