Thyrotoxicosis Flashcards
1
Q
Thyrotoxicosis: clinical disorder resulting from ? circulating levels of thyroid
hormone.
Effects ?% of the population.
Far more common in ? (5:1).
A
raised
1
women
2
Q
Causes;
Common;
o ? disease.
• lgG ? stimulate thyroid follicular cells, out of control of the normal ? feedback mechanism.
• It has certain specific signs on examination (see below) .
o ? ? goitre.
• Commonly in ? ?, where several ? nodules develop, outside of ? control.
A
grave's autoantibodies pituitary toxic multinodular old women hyperactive TSH
3
Q
Causes Less common; o ? toxic ?. ---• Aka ? 's disease, as above but just one nodule. o Thyroiditis. o ?-induced. ---• ?, excess ?. o Excess ? intake. o Hashitoxicosis. • ? ? of Hashimoto's .
Rare;
o Secondary causes .
–• ? secreting ? adenoma .
–• ? to thyroid hormone .
A
solitary adenoma plummers drug amiodarone levothyroxine iodine hyperthyroid phase tsh pituitary resistance
4
Q
Symptoms; ? / irritability. ? intolerance/ ?. ? appetite. ? (heart). ? loss. Tremor. Stool is ? Fatigue / ?.
A
anxiety heat sweating increased palpitations weight loose weakness
5
Q
Signs; Lid ? / lid ?. Graves' ? Goitre / ? ? hypertension. Tachycardia/ ? . Tremor. Hyper-?. ? peripheries. ? ? weakness . Pre-? ?
which of these are Grave’s specific
A
lag retraction ophthalmopathy !! bruit !! systolic AF reflexia warm acropachy !! proximal tibial myxoedema !!
6
Q
Graves opthalmopathy is much more common in ?
A
smokers
7
Q
A rare presentation is thyroid crisis / thyroid ‘storm
Generally occurs in periods of ? (infection, surgery, ?) in people with ?/? hyperthyroidism; o Hyper? o Severe ?. o Profuse ?. o Confusion / ? . If untreated, ? and ? may ensue. o Treat with ?, ?, sodium ?, high dose ? and supportive measures.
A
stress childbirth uncontrolled/untreated pyrexia tachycardia sweating psychosis coma death propylthiouracil propranolol iodide steroids