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|In House Availability||Monday-Friday, day shift only|
|Method||Giemsa stain of thick and thin smears|
|Collection Instructions||Call Microbiology at x3-1268 to arrange testing. Friday samples should be received by Microbiology by 1230 hours
Note the exact time of blood draw. Two samples should be drawn, one between 1000 and 1400 hours, the other between 2200 and 0200 hours (arrange outpatient blood draw at night with the Emergency Department).
|Container type||Lavender top|
|Amount to Collect||3 mL blood|
|Sample type||EDTA whole blood|
|UCSF Rejection Criteria||Improperly collected sample.|
|Processing notes||Blood specimen may be held until the day shift for making smears.|
|Critical value||Filiaria identified|
|Synonyms||Loa loa; Microfilaria; Wucheria|
|Stability||Refrigertated 3 days|
|Turn around times||1-3 days|
|Additional information||Requires appropriate symptoms including fever, and eosinophilia. Review the patient's history for possible periodicity and optimal time of sampling.
If direct smears are negative, Knott concentration technique is performed and an additional charge is billed. Concentration includes centrifugation of RBC lysates and staining with Giemsa (for nuclear detail) with microscopic speciation.
Also see entries for Onchocerca and for Parasites-Urine.
|Last Updated||4/11/2013 11:36:01 AM|
If you have additional questions regarding this test, please call: 415-353-1667