Core wellness bloodworkDogs & catsSmall blood draw
Thyroid (T4)
Thyroid hormone level — metabolism, weight, coat, and energy.
What it measures
- • Total thyroxine (T4), the main thyroid hormone
What results can show
- ✓ Screens for hypothyroidism in dogs (often low T4)
- ✓ Screens for hyperthyroidism in older cats (often high T4)
- ✓ Explains some weight, coat, and energy changes
Honest limitations
T4 is a first-pass screen. A borderline or abnormal result usually needs a fuller thyroid panel to confirm, because other illness can push T4 around.
What we collect
The T4 value, stored against your pet’s profile.
Educational information only, not veterinary advice, and not a diagnosis. Always consult a licensed veterinarian about your pet's health.