QuestionSBA
QuestionChoice
Myasthenia gravis is a type II hypersensitivity reaction that causes an immune response to acetylcholine receptors Weakness worsens after repeated movements. It is associated with thymoma and bronchial carcinoma.
10026823
c
Myasthenia gravis
QuestionChoice
Weakness caused by cord compression would not improve with repeated movements.
10026825
e
Spinal metastases resulting in cord compression
QuestionChoice
Lambert-Eaton syndrome is a paraneoplastic syndrome associated with small cell lung cancer. It is a type II hypersensitivity reaction that causes an immune response to voltage-dependent calcium channels. Weakness improves after repeated movement due to sufficient accumulation of calcium.
10026821
a
Lambert-Eaton Syndrome
QuestionChoice
Chemotherapy can lead to general weakness and energy depletion, however, this is unlikely to improve with repeated movements.
10026824
d
General weakness following chemotherapy
QuestionChoice
Chemotherapy can cause "glove and stocking" neuropathy that affects both the sensory and motor neurons. However, weakness produced by neuropathy is unlikely to improve with repeated movements.
10026822
b
Peripheral neuropathy due to chemotherapy
Concept
Chapter
2693
3702
Lung Cancer
Topic
132
Respiratory
17762
A 64-year-old woman presents to the GP complaining of weakness. She says that she struggles to stand up from her chair but that this weakness improves the more she repeats a movement. She is currently undergoing chemotherapy for a recent diagnosis of small-cell lung cancer.

Which of the following is the most likely cause of her weakness?
a