WIDAL (SALMONELLA) AGGLUTININS, DA
- Code
- 000.0000
- Name
- WIDAL (SALMONELLA) AGGLUTININS, DA
- Category
- None
- Department
- Send-Out
- Start Date
- Expiration Date
- Synonyms
- Widal (Salmonella) Agglutinins DA, Proteus
- CPT Codes
- 86768x5
- Site
- SBMF
- Reference Test
- 45141
Specimen Information
- Type
Red, Plain
- Volume
1.0 ml
- Transport Info
Centrifuge and immediately transfer serum to separate plastic tube
Refrigerated- Fasting Required?
- False
- Patient Instructions
Submit acute and convalescent sera 1-3 weeks apart.
- Reference Range
See Report
- Methodology
ImmunoDOT
Clinical Significance
Agglutinin titers to somatic and flagellar antigens begin to rise during the second week of infection and peak by the third week. Titers greater than or equal to 1:160 are considered presumptive evidence of S. typhi infection (at an undetermined time). A four-fold increase in titer is required for serodiagnosis of recent infection.