Malarial Screen, Rapid, Emergency


Sunquest Code:MALSCR  
Epic Code:LAB3603Epic Name:Malarial Screen Rapid
Order Instructions:Order a Malaria Smear (PSTN) with the Malarial Screen, Rapid, Emergency
Synonyms:Plasmodium falciparum Screen; Pan Malarial Screen
Methodology:Immunochromatography
CPT Code:----------CPTCODES HERE----------
Turnaround Time:Performed 24 hours a day/7 days per week, and reported within 24 hours.


Collection Instructions

Specimen:Whole Blood, and thick and thin blood smears
Optimal Volume:2 mL minimum AND a minimum 3 thin and 3 thick blood smears (ordered as PSTN)
Container:See Collection Instructions, Purple (EDTA) (Microscope slides)
Collection Instructions:Collect purple (EDTA) tube. Immediately mix 10 times by gentle inversion. Collect blood in syringe after all other tubes are collected and immediately make thick and thin blood smears at the bedside. Alternatively, thick and thin smears can be made directly from fingerstick.

Thin smears should have long feathered edges similar to those used to study cell morphology in Hematology. Thick films are dime-sized preparations several cell layers thick. See separate procedure "Blood Films for Malaria".

Blood smears made from EDTA tubes are inferior and only acceptable if there is no alternative. If EDTA is used, smears should be made within 2 hours of collection.

Label each slide and allow to dry flat before placing in slide holders and delivering to IDDL.


Processing and Shipping

Specimen Processing:Do not process. Store at room temperature.
Shipping Instructions:Ship at ambient temperature to arrive within 8 hours.
Test Performed at or Referral Lab Infectious Diseases Diagnostic Lab-Microbiology  (UMMC-East Bank)


Interpretive

Critical Range:Positive result.
Reference Range:Negative
Use:Assay is intended for emergency screening for malaria antigens, with the emphasis on Plasmodium falciparum, the most life-threatening malaria species. It is not a stand-alone test and positive results are followed by Giemsa stained thin and thick smears by microscopy for confirmation and parasitemia level. Negative screens will be followed by thin/thick microscopy.


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