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Clear
 
Test Code:
090-10-0400-01

Order Name:
Weil Felix Test

 
Useful For:
Stained antigen suspension are used for the identification and quantitative detection of specific antibodies in human sera for epidemiological and diagnostic purpose, primarily in the investigation of pyrexia and enteric infections with certain Salmonellae, Rickettsiae and Brucellae pathogens.
 
Methodology:
Agglutination
 
AliasesName:
Coxiella burnetii
Coxiella Titer
Febrile Agglutinins
OX-19 (Proteus OX-19 - Weil-Felix)
OX-2 (Proteus OX-2 - Weil-Felix)
OX-K (Proteus OX-K - Weil-Felix)
Proteus (Weil-Felix)
Rickettsial Antibody
Typhus
Q Fever
 
 
 
Test Code:
090-10-0400-01

Order Name:
Weil Felix Test

 
Collection Specimen Or Container:
Blood/ Plain Blood (Red Top) 6 mL, 1 tube
 
Specimen Testing Type:
Serum, minimum volume 1 mL
 
Sub Mission Container:
Plastic tube
 
Specimen Stabillity:
Specimen Type Temperature Time
Serum Refrigerated, 2oC to 8oC 48 hours
 
 
 
Test Code:
090-10-0400-01

Order Name:
Weil Felix Test

 
Method detail:
Agglutination
 
Schedule:
Tested Daily (24 hours)
 
Turnaround Time:
Collected specimen to report within 90 mins.
 
Performing Location:
Hematology, Laboratory Department Tel. 17254
 
Specimen Retention Time:
5 days
 
 
 
Test Code:
090-10-0400-01

Order Name:
Weil Felix Test

 
 
Clinical Information:
Q fever, a rickettsial infection caused by Coxiella burnetii, has been recognized as a widely distributed zoonosis with the potential for causing both sporadic and epidemic disease. The resistance of C burnetii to heat, chemical agents, and desiccation allows the agent to survive for extended periods outside the host.
The infection is spread by the inhalation of infected material, mainly from sheep and goats. They shed the organism in feces, milk, nasal discharge, placental tissue, and amniotic fluid.
The clinical spectrum of disease ranges from unapparent to fatal. Respiratory manifestations usually predominate; endocarditis and hepatitis can be complications.
 
Reference Value:
Test Reference Value
OX-19 ≤ 1:80
OX-2 ≤ 1:80
OX-K ≤ 1:160
 
Interpretation:
If agglutination reaction are observed the following approximate titres would be observed if a confirmatory tube test was carried out : 80 ul. = 1:20 40 ul = 1:40 20 ul = 1:80 10 ul = 1:160 5 ul = 1:320 In this way the rapid slide test provides an approximation to the expected results from a corresponding tube test Note : It is necessary to perform all dilutions in the slides test to obviate the prozone effect where higher concentrations of the serum may give a negative resukt but further dilutions may give a positive result.
 
Clinical Reference:
  1. Manufacturer’s reagent package insert Lab21 Febrile Antigens Lab21 Healthcare Ltd Lanwades Business Park Kentford, Suffolk CB8 4PN United Kingdom.
  2. http://www.mayomedicallaboratories.com (Retrieved: 22 Jan 2019)