Hyperthyroidism Flashcards
1
Q
Pathophysiology
A
Excessive production of thyroxine (T4) and triiodothyronine (T3)
Results in increased
- MBR
- HR
- glucose usage
- GI motility
2
Q
Main aetiology
A
Thyroid tumour
- functional adenoma in cats
- carcinoma in dogs
3
Q
Other factors influencing development (2)
A
Excessive iodine exposure
Fish and liver diets
4
Q
Conditions secondary to hyperthyroidism (3)
A
Hypertension
HCM
CRF
5
Q
Clinical signs (10)
A
Increase appetite Weight loss Hyperactivity Hypertension Tachycardia Arrhythmia Murmur Goitre Low stress tolerance Skin and coat changes
6
Q
Diagnosis (7)
A
Hx/cs/exam Haem - +pcv/+hgb/+rbc count and size Biochem - + liver enzymes / KP to check for CRF Blood glucose and urinalysis - rule out DM / check for CRF Thyroid function tests TSH test - decrease due to compensation
