thyroid function tests Flashcards
1
Q
TSH and T4/T3 levels: hyperthyroidism
A
TSH low
T3/4 high
2
Q
TSH and T4/T3 levels: primary hypothyroidism
A
TSH high
T3/4 low
3
Q
TSH and T4/T3 levels: secondary hypothyroidism
A
TSH low
T3/4 low
4
Q
antibodies that stimulate thyroid hormone release
A
TSH receptor antibodies
5
Q
antibodies against thyroid gland
A
antythyroid peroxidase (anti-TPO) antibodies
6
Q
what are radioisotope scans used to investigate
A
hyperthyroidism
thyroid cancer
7
Q
radioisotope scan - diffuse uptake
A
Grave’s disease
8
Q
radioisotope scan: focal high uptake
A
toxic multinodular goitre
adenomas
9
Q
radioisotope scan - cold areas (low uptake)
A
thyroid cancer
