ABTIH - Performance: Antibody Titer, Erythrocytes

Test Catalog

Test Name

Test ID: ABTIH    
Antibody Titer, Erythrocytes

Method Description Describes how the test is performed and provides a method-specific reference

The specificity of the antibody to be titered is first determined and optimal phases of reactivity are selected. Two-fold serial dilutions of serum are tested against antigen-positive erythrocytes under optimal conditions. The result is the reciprocal of the highest dilution at which macroscopic agglutination (1+) is observed. Parallel titration of a previous specimen of the patient's serum (frozen) provides a baseline for comparison of antibody level. In the absence of a previous specimen from the patient, parallel titration of a control antiserum is used for standardization.

PDF Report Indicates whether the report includes an additional document with charts, images or other enriched information


Day(s) and Time(s) Test Performed Outlines the days and times the test is performed. This field reflects the day and time the sample must be in the testing laboratory to begin the testing process and includes any specimen preparation and processing time required before the test is performed. Some tests are listed as continuously performed, which means assays are performed several times during the day.

Monday through Friday; Continuously, Saturday; 12 a.m.-4 p.m.,

Sunday; 7 a.m.-12 a.m.

Analytic Time Defines the amount of time it takes the laboratory to setup and perform the test. This is defined in number of days. The shortest interval of time expressed is "same day/1 day," which means the results may be available the same day that the sample is received in the testing laboratory. One day means results are available 1 day after the sample is received in the laboratory.

1 day

Maximum Laboratory Time Defines the maximum time from specimen receipt at Mayo Medical Laboratories until the release of the test result

2 days

Specimen Retention Time Outlines the length of time after testing that a specimen is kept in the laboratory before it is discarded

14 days

Performing Laboratory Location The location of the laboratory that performs the test