TRH Stimulation Test dog II (2x T4)

LABOKLIN Service ID: 3140

Diagnosis

  • Hypothyroidism
  • The test is a compromise between the single determination of T4, fT4 und TSH and the TSH stimulation test.

Material

Serum 2 x each 0,5 ml

Execution

  • First blood collection = baseline value
  • Injection of Thyroliberin® i.v. (100 µg up to 3 kg bdw, 200 µg with a bdw > 3 kg)
  • Second sample 4 hours post injection = 1st stimulation value
  • Determination of T4 in first and second sample

Species list

Dog

Duration

1 day

Assessment

  • Euthyroid: elevation of T4 concentration by at least 0.5 µg/dl to at least 2.5 µg/dl
  • Questionable: elevation of T4 concentration by less than 0.5 µg/dl to > 2.5 µg/dl or by more than 0.5 µg/dl but to < 2.5 µg/dl