Parasites Smear (Giemsa Stain), Blood
Ordering Recommendation

Screen for and detect spirochetes and blood parasites, including microfilaria, Babesia, Trypanosoma and Plasmodium species. Patient's travel history is necessary to aid in test interpretation.

Within 2 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Time SensitiveTime Sensitive
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
Lavender (EDTA) or pink (K2EDTA). 
Specimen Preparation
Transport 5 mL whole blood (Min: 1 mL). Extended exposure to EDTA anticoagulants can result in altered parasite morphology. For best results, send five (5) thin blood smears (unstained, unfixed) AND five (5) thick smears (unstained, unfixed) in addition to whole blood. Thin and thick blood smears should be prepared immediately or within 1 hour after collection.
Thin smears are made as per routine hematology differentials. Thick smears are made by dropping 10 to 20 µL of blood onto a slide and spreading it into a dime-sized area with a glass, wooden, or plastic applicator.
For instructions on preparation of thick and thin smears, see
Label and transport slides in slide holders. Specimen must be received within 24 hours of collection. 
Storage/Transport Temperature
Room Temperature. 
Unacceptable Conditions
Whole blood in anticoagulants other than EDTA or K2EDTA. 
Rapid diagnosis of malaria is critical for appropriate patient management. Specimens for Malaria and Babesia are for confirmation only from clients outside of the immediate Salt Lake City, Utah area. Travel history required. 
Whole blood: Ambient: 24 hours; Refrigerated: Unacceptable; Frozen: Unacceptable
Slides: Ambient: 1 week; Refrigerated: Unacceptable; Frozen: Unacceptable 
Reference Interval
Interpretive Data

Hotline History
View Hotline History
Component Test Code*Component Chart NameLOINC
0049025Parasites Smear (Giemsa Stain), Blood51714-4
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please view this test within the Laboratory Test Directory found at
  • Babesia
  • Blood parasites detection
  • Giemsa Stain for Malaria
  • Loa Loa Smear
  • Malaria Smear (Giemsa Stain)
  • Malaria/Babesia Smear
  • Microfilarial Smear
  • Microfiliariae detection
  • Plasmodium Smear
  • Trypanosome
  • Wuchereria Smear
  • Wucheria bancrofti