TRH Stimulation Test dog I (3 x fT4)

LABOKLIN Service ID: 182

Diagnosis

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

Material

Serum 3 x 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 after 90 min = 1st stimulation value
  • Third sample 3 hours post injection = 2nd stimulation value

Parameter

fT4

Species list

Dog

Duration

1 day

Assessment

  • Euthyroid: at least 1 x > 25 pmol/l
  • Questionable: at least 1 x 20 – 25 pmol/l, all other samples < 25 pmol/l
  • Hypothyroid: all samples < 20 pmol/l