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| Q. |
Which is INCORRECT regarding myasthenia gravis? |
| A. | Onset in females usually 2nd and 3rd decades, males 7th and 8th decades. |
| B. | The thymus is abnormal in 75% and removal will improve symptoms in the majority. |
| C. | Acute crises in these patients can be due to myasthenia crisis or cholinergic crisis secondary to the medication. |
| D. | Muscle weakness is more marked peripherally. |
| E. | Diagnosis with Ach receptor antibody testing is possible but false negatives occur in 15%. |
| Answer» D. Muscle weakness is more marked peripherally. | |
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