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Lab Manual for UCSF Clinical Laboratories

Lab Manual for SFGH

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BORRELIAE, RELAPSING FEVER

Item Value
Available Stat? No
Test code MC
Performed by? Microbiology (Bacteriology)
Sendout? yes
Price range $$$+
In House Availability 7 days. Test must be scheduled with Microbiology Lab (206-8576).
Principle Detection of Borreliae is done by direct observation of the organism in peripheral blood. Borreliae are filamentous, spiral shaped organisms. The spirals are broader and more flexible than treponemes and exhibit highly motile, corkscrew movement which may suddenly reverse. Giesma stained direct smears and wet mount preps observed by dark field or phase microscopy will be examined for the characteristic organisms.
Interpretation Detection of borreliae may be indicative of relapsing fever. Human relapsing fever is caused by more than 15 species of borreliae and is transmitted by the bite of a louse or tick.
Container type lavender top tube (EDTA)
Amount to Collect 4 mL
Sample type Blood
Normal range No Borreliae seen.
References Forbes BA, et al. Bailey and Scott's Diagnostic Microbiology, 11th Ed., Mosby, St. Louis MO, 2002.
Last Updated 1/26/2009 2:41:42 PM
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