Rapid test to determine the TT4 level in serum, plasma and whole blood of cats to detect feline hyperthyroidism
The Fassisi T4 is a screening test that determines the concentration of TT4 in cat sera to detect a possible hyperthyroidism.
The Fassisi T4 tests the TT4 concentration of the used sample to three concentrations:
Note that the test has a "competitive" test setup. This means that in the case of a positive test result, e.g. with a high TT4 level (> 80 ng/ml) and a correspondingly strong hyperthyroidism, no test lines are visible in the evaluation field. In case of a negative test result, i.e. a TT4 level < 40 ng/ml, both test lines can be seen.
The detection limits of the Fassisi T4 test are based on the recommendations for the drug Vidalta® from MSD (Vidalta® 10 mg for diagnosed mild hyperthyroidism and Vidalta® 15 mg for diagnosed severe hyperthyroidism).
The Fassisi T4 test was tested based on the laboratory standard by the University of Veterinary Medicine Hannover and has been confirmed as a test.