Basics
What hormone does levothyroxine replace?
T4
When is the best time to take the medication?
morning
What is a common mild effect?
insomnia
Primary lab to be monitored?
TSH
Take before or after meals?
before
What condition is it used for?
hypothyroidism
Should it be taken with food?
No
What is a serious cardiac symptom?
chest pain
High TSH means what?
hypothyroid
Can therapy be stopped?
No
What gland produces the T4 hormone?
Thyroid
IV form is used for what condition?
Myxedema coma
What is a sign of OD?
tachycardia
Low TSH means what?
hyperthyroid
Drug interactions examples
Calcium
Is therapy short term or lifelong?
lifelong
Why avoid switching brands?
bioavailability differences
Why is tachycardia dangerous?
Cardiac strain
How often are labs checked?
6-8 weeks
What symptom should be reported immediately?
Chest pain
What assessment findings indicates that levothyroxine therapy is effective?
weight gain
increased energy level
cold intolerance
bradycardia
increased energy level
What reduces absorption?
Ca and Iron
What conditions mimics overdose?
hyperthyroidism
What happens if levels are too high?
Toxicity
Why does consistency matter?
stable hormone levels