Hypothyroidism Flashcards
1
Q
Main symptoms
A
Cold
Weight gain
Constipation
Bradycardia
2
Q
Symptoms - other
A
Lethargy
Muscle cramps
Slow movement
Slow thoughts
Depression
Hair thinning
3
Q
Tests
A
High TSH
Low T4 (thyroxine)
Low T3 (triiodothyronine)
4
Q
Levothyroxine/Liothyronine
A
Synthetic thyroid hormones as replacement therapy
5
Q
Levothyroxine
A
Drug choice
Dose - question doses above 200 mg
How to take - in the morning at least 30 mins before breakfast, caffeine.
6
Q
Liothyronine
A
More rapid effect & potent
Use - ideal in severe hypothyroid emergencies.
Switching brand - not bioequivalent
7
Q
Initial dose
A
If too high - metabolism increases rapidly and causes hyperthyroidism symptoms
Reduce dose or WITHOLD for 1-2 days and restart at lower dose
