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If you have additional questions regarding this test, please call: 415-353-1667
|Approval req'd?||No, but contact parasitologist in Microbiology (x31268) prior to specimen collection|
|Sendout?||Physician may also request Microbiology to send sample to CDC for T. cruzi PCR|
|In House Availability||Monday-Thursday before 12:30 pm|
|Method||Microscopy (Giema stain of thick and thin smears)|
|Collection Instructions||Collect blood prior to anti-parasitic therapy.
Contact parasitologist in Microbiology (x31268) prior to collection to discuss appropriate sample type and collection instructions.
Collect and deliver the specimen directly to the laboratory within 30 minutes of collection Monday-Thursday before 12:30 pm.
Include travel/residence history on requisition.
|Amount to Collect||
|Sample type||EDTA whole blood, CSF
Heart biopsy in sterile saline or FFPE
|Processing notes||Store samples in refrigerator. Send to Microbiology refrigerated
For PCR to CDC:
Ship Monday-Thursday, overnight to avoid weekend deliveries. Ship sample on cold packs, except ship paraffin embedded tissue at ambient temperature.
Request provider to complete page 2 of CDC Specimen Submission Form 50.34, which is available at http://www.cdc.gov/laboratory/specimen-submission/form.html
|Normal range||No Trypanosoma species seen/detected|
|Critical value||Positive result from normally sterile sites|
|Synonyms||Trypanosoma cruzi, Chagas disease|
|Stability||Rerfrigerated 24 hours|
|Turn around times||1-3 days|
|Additional information||This test is offered for the causitive agent of Chagas disease. Sensitivity of direct smear is limited to severe acute stage, reactivation, or detection in recipients of organs from donors with chronic Chagas disease.
Physician may also request Microbiology to send sample to CDC for T. cruzi PCR
For African trypanosomiasis (sleeping sickness), thick and thin smears of blood, CSF, or aspirates of lymph node and trypanosomal chancres can be examined.
CDC offers clinical consultation, but not testing, for suspect African trypanosomiasis.
|Last Updated||11/23/2015 11:05:45 AM|