Myasthenia Gravis Flashcards
1
Q
X
A
2
Q
X
A
3
Q
which receptor is involved in the proximal muscle weakness of myasthenia gravid ?
A
Skeletal muscle contraction is dependent on acetylcholine which activates ! NICOTINIC ACETYLCHOLINE RECEPTORS!
4
Q
X
A
5
Q
Clinical features
A
proximal myopathy
complex ophthalmoplegia
with evidence of fatigability of muscles on repetition
6
Q
what are the complex ophthalmoplegia ?
A
drooping of eye - ptosis
7
Q
X
A
8
Q
X
A
9
Q
C
A
10
Q
X
A
11
Q
X
A
12
Q
Diagnosis of myasthenia graves ?
A
Gell and Coombs hypersensitivity - TYPE 5
Nerve conduction studies show a decrement with repetitive nerve stimulation testing.
13
Q
x
A
14
Q
Mx of myasthenia gravis
A
Pyridostigmine
15
Q
x
A
16
Q
Anterior mediastinal mass + symptoms of myasthenia
A
Thyoma
= occasional breathing difficulty
= difficulty swallowing
need CT scan of the chest
