Flashcards in Hyperthyroidism Deck (19):
Hyperthyroidism is the unregulated production of what?
What are the risk factors associated with hyperthyroidism in the cat?
1. Canned food
3. Cat litter
4. Indoor housing
5. Lawn and flea control products
What is the typical signalment of a cat with hyperthyroidism?
1. Older than 8 years of age
2. Mean age of 13 years
3. Male (increased risk)
Which 2 breeds may have a DECREASED risk of developing hyperthyroidism?
What are the clinical features of hyperthyroidism in a cat?
1. Weight loss
6. Skin changes
8. Behavioral changes
What is the biggest rule out, next to hyperthyroidism, when you have a PU/PD cat losing weight?
What is the MOST COMMON clinical feature associated with hyperthyroidism in the cat?
There is a palpable thyroid in ___% of cats with hyperthyroidism.
Which of the following is/are not cardiovascular effects associated with hyperthyroidism in the cat: (1) systolic murmur, (2) bradycardia, (3) gallop rhythm, (4) changes consistent with DCM.
2. Changes consistent with DCM
What 4 cardiovascular changes would you associate with hyperthyroidism?
2. Systolic murmur
3. Gallop rhythm
4. Changes consistent with HCM
What type of changes would you see on a CBC with hyperthyroidism?
1. Increased PCV
2. Increased hemoglobin
3. Increased RBC count
4. Stress leukogram (lymphopenia, eosinopenia, leukocytosis)
What 3 changes might you see on a biochem associated with hyperthyroidism?
1. Elevated ALT and/or ALP
3. Increased glucose
What change might you notice on a urinalysis associated with hyperthyroidism?
Specific gravity > 1.035
What type of changes might you see on ECG associated with hyperthyroidism?
2. Increased R wave amplitude
3. Widened QRS complex
What change in the heart might you notice on radiograph?
True or False: A high TT4 indicates hyperthyroidism.
___% of cats with hyperthyroidism have a high TT4.
Which is more consistently elevated in hyperthyroid cats, TT4 or fT4ED?