[Serious reactions after the TSH-stimulation test in the dog].

: The thyrotropin response test is the most common test for the diagnosis of hypothyroidism. Here we report serious adverse effects in two dogs after intravenous administration of bovine TSH. The clinical signs were consistent with an anaphylactoid or anaphylactic reaction. In both cases a previous sensibilization with bovine TSH can be excluded. We discuss the etiology and emphasize the most probable cause to be an anaphylactoid reaction. Preventive measures are discussed.