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Myasthenia gravis: Quiz


Question 1: Up to 75% of patients have an abnormality of the thymus; 25% have a thymoma, a tumor (either benign or malignant) of the ________, and other abnormalities are frequently found.
Immune systemAdaptive immune systemThymusLymphatic system

Question 2: [3] A thorough ________ can reveal easy fatiguability, with the weakness improving after rest and worsening again on repeat of the exertion testing.
Physical examinationAnkle brachial pressure indexJugular venous pressureRespiratory sounds

Question 3: The muscles that control ________ and neck and limb movements can also be affected.
Hypoxia (medical)Respiratory systemBreathingHemoglobin

Question 4: It has recently been realized that a second category of gravis is due to auto-antibodies against the MuSK protein (muscle specific kinase), a ________ receptor which is required for the formation of the neuromuscular junction.
Platelet-derived growth factor receptorTyrosine kinaseBruton's tyrosine kinaseEph receptor

Question 5: Side effects, like perspiration and diarrhea can be countered by adding ________.
HyoscyamineDicycloverineAtropineMuscarinic antagonist

Question 6: Thymectomy, the surgical removal of the ________, is essential in cases of thymoma in view of the potential neoplastic effects of the tumor.
ThymusImmune systemLymphatic systemAdaptive immune system

Question 7: In MG, the autoantibodies are directed most commonly against the nicotinic acetylcholine receptor (nAChR)[5] , the receptor in the motor end plate for the neurotransmitter ________ that stimulates muscular contraction.
AcetylcholineDextromethorphanKetamineKynurenic acid

Question 8: Roger Smith, semi-retired actor/talent manager, husband of ________.
Bette MidlerMeryl StreepAnn-MargretLiza Minnelli

Question 9: In the long term, ________ does not affect myasthenia gravis.
Sexual intercoursePregnancyPrenatal developmentReproductive medicine

Question 10: Brandon Cox, starting Auburn ________ from 2005-2007.
Punter (football)QuarterbackCenter (American football)Defensive tackle

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