T4, TOTAL (CANINE SPECIFIC)

Description

The T4, Total (Canine Specific) test measures the total concentration of thyroxine (T4) in your dog’s blood. T4 is the primary hormone produced by the thyroid gland and plays a vital role in regulating your dog’s metabolism, energy levels, body temperature, and overall organ function. This canine-specific assay is the most widely used first-line test for diagnosing hypothyroidism in dogs, and is available with convenient at-home sample collection in Hyderabad.

When Is a Total T4 Test Recommended for Dogs?

Your veterinarian may recommend this test for:

• Suspected hypothyroidism based on clinical signs such as weight gain, lethargy, or hair loss
• Investigating unexplained obesity or difficulty losing weight despite normal diet
• Evaluating skin and coat problems such as symmetrical hair thinning, dull coat, or recurrent skin infections
• Assessing exercise intolerance, muscle weakness, or slow heart rate
• Monitoring dogs on thyroid hormone replacement therapy (levothyroxine) to check dosage
• Ruling out thyroid involvement in reproductive disorders or cardiac abnormalities
• Routine wellness screening for middle-aged to senior dogs and predisposed breeds (Golden Retrievers, Dobermanns, Labrador Retrievers, Boxers)

Common Signs of Hypothyroidism in Dogs

• Unexplained weight gain without dietary changes
• Lethargy and reduced activity or reluctance to exercise
• Symmetrical hair loss or thinning, especially on the trunk and tail
• Dry, flaky, or thickened skin
• Slow heart rate (bradycardia)
• Cold intolerance and seeking warmth
• Facial puffiness or a dull, puffy appearance

What Does the T4, Total Test Measure?

• Total thyroxine (T4) in serum, including both protein-bound and free fractions
• Low TT4 alongside elevated cTSH confirms primary hypothyroidism in dogs
• Often used as the initial screening test; if borderline, may be followed by Free T4 (fT4) or cTSH for confirmation
• Canine-specific assay provides greater diagnostic accuracy than standard human T4 tests

Sample Type & Preparation

• Sample type: Serum (routine blood draw)
• Fasting: Generally not required, but recommended for combined hormone panels
• Medication note: Glucocorticoids, phenobarbital, and sulfonamides can suppress T4 levels and produce false low results. Always inform your vet of all current medications before testing

At-Home T4 Test Collection in Hyderabad

At Home Petcare provides doorstep blood sample collection across Hyderabad for the T4, Total (Canine Specific) test. Our trained veterinary phlebotomists visit your home, safely collect your dog’s blood sample, and dispatch it to our accredited partner laboratory — saving you a stressful clinic visit and keeping your dog calm and comfortable.

Fast & Reliable Lab Reports

Results are processed at accredited diagnostic laboratories and delivered digitally to your phone or email. Your veterinarian can then use the findings to confirm hypothyroidism and recommend the most effective treatment plan or dosage adjustment for your dog.

Why Choose At Home Petcare?

• Trained veterinary phlebotomists for safe, gentle sample collection
• Convenient doorstep service across all areas of Hyderabad
• Canine-specific T4 assay for greater diagnostic accuracy
• Accredited laboratory partners for reliable, precise results
• Digital report delivery to your phone or email
• Transparent pricing with no hidden charges