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Test Code LAB2074 Parasites Smear

Important Note

For detection of Malaria, Babesia,  trypanosomes, and microfilariae.  Positive smear result includes percent parasitemia

Draw blood just prior to expected chills or shortly after onset.

 

Additional Codes

Test Name in EPIC EPIC Test Code Mnemonic
SMEAR PARASITES LAB2074 MALAR

 

Useful For/Utility

Detection of blood parasite infections including malaria, babesia, trypanosomes, and microfilaria. Test is a qualitaitive screening for blood parasites.  If blood parasite is present, percent parasitemia will be provided.

Methodology

Microscopic Examination of Stained Slides

Test Algorithm

Specimens requiring speciation of detected parasite are referred to Mayo Medical Laboratories.

Clinical Information

Test is performed by examining Giemsa-stained thick and thin blood films.  Examination of the thin film allows for calculation of  percent parasitemia for malaria or babesia, which can be used to predict prognosis and monitor response to treatment for patients with malaria and babesiosis. The percentage parasitemia represents the percentage of infected red blood cells. This is calculated from representative microscopic fields on the thin blood film.  

Specimen Requirements

Slides and whole blood are required.

 

Slides must be made within one hour of draw. Stain within 72 hours.

 

Specimen Type: Whole blood

Container/Tube: Lavender top (EDTA)

Specimen Volume: 1 mL

Specimen Minimum Volume: 0.2 mL

Collection Instructions: Draw blood just prior to expected chills or shortly after onset.

 

Specimen Type: Thin blood smears

Container/Tube: Slide container

Specimen Volume: 4 Slides

Collection Instructions: 

1. Smear slides with a “feathered edge”; should be no more than a single cell thick.

2. Allow smears to thoroughly air dry.

Collection Instructions: Use only clean, grease-free slides.

Additional Information: See Malaria Smears in Special Instructions for examples of properly made slides.

 

Specimen Type: Thick blood smears

Container/Tube: Slide container

Specimen Volume: 4 Slides

Collection Instructions:

1. Using a corner of another slide, spread drop into a dime-sized area by literally scratching carrier slides to make blood adhere.

2. Allow smears to thoroughly air dry for at least 8 hours.

Additional Information: See Malaria Smears in Special Instructions for examples of properly made slides.

Specimen Transport Temperature

Ambient/Refrigerate NO/Frozen NO

Day(s) Test Set Up

Monday through Friday (day shift only)

Performing Laboratory

Special Hematology-

SMDC Clinical Lab

Test Classification and CPT Coding

87207

Reference Values

None seen

Special Instructions