A technician makes a serial dilution using patient serum with the following results: Tube #1 =...
- A technician makes a serial dilution using patient serum with the following results:
Tube #1 = 1/2 2+ reaction
Tube #2 = 1/4 2+ reaction
Tube #3 = 1/8 1+ reaction
Tube #4 = 1/16 no reaction
Tube #5 = 1/32 no reaction
How would you report the titer result?
Homework Answers
Answer
The Tube 3 showing agglutination is the endpoint of the test. The titer is reported as the reciprocal of the last dilution showing a positive result. For example, if the Tube 3 to show agglutination is a dilution of 1/8 then the titer is reported as 8.
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