Thyroid Disorders Flashcards
1
Q
what does primary thyroid disease affect?
A
the thyroid itself
2
Q
what causes secondary thyroid disease?
A
hypothalamic or pituitary disease
3
Q
diagnosis of primary hypothyroidism
A
free T3/4 low
TSH high
4
Q
diagnosis of primary hyperthyroidism
A
free T3/4 high
TSH low
5
Q
diagnosis of secondary hypothyroidism
A
free T3/4 low
TSH low/ normal
6
Q
secondary hyperthyroidism
A
free T3/4 high
TSH high/normal
7
Q
what is sub-clinical thyroid disease?
A
low or high TSH with a normal T3/4 which risks progression to overt
8
Q
when should you avoid checking TFTs?
A
unwell patients as TSH is initially suppressed but then rises in recovery
known as non-thyroidal illness/ sick euthyroid syndrome
