Hypothyroidism Flashcards
1
Q
what is the difference between primary and secondary hypothyroidism
A
primary= thyroid pathology where low T3/T4 is produced. TSH would be high
secondary= pituitary pathology, low TSH, low T3/T4
2
Q
what is the most common cause of hypothyroid
A
iodine deficiency
3
Q
what are the causes of hypothyroid
A
Iodine deficiency
Hashimoto’s thyroiditis- autoimmune
pituitary adenoma
drug induced e.g. Lithium
4
Q
how does hypothyroid present
A
cold skin/ cold intolerance
bradycardia
hair thinning
weight gain- puffy face
5
Q
how do you investigate hypothyroid
A
thyroid function tests-> decreased T3/4, increased TSH if primary
subclinical hypothyroid= normal T3/4 and increased TSH
USS if goitre
6
Q
how do you manage hypothyroid
A
Levothyroxine (hormone replacement)
regular TFTs
