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Pyridostigmine: Quiz


Question 1: Used in particular during the first ________, pyridostigmine bromide has been implicated as a causal factor in Gulf War syndrome[2].
Gulf WarSix-Day War2006 Lebanon WarYom Kippur War

Question 2: Pyridostigmine is used to treat muscle weakness in people with ________ and to combat the effects of curariform drug toxicity.
Systemic lupus erythematosusMyasthenia gravisAsthmaCoeliac disease

Question 3: Since it is a quaternary amine, it is poorly absorbed in the gut and doesn't cross the ________, except possibly in stressful conditions.
Immune systemMeningitisAIDSBlood-brain barrier

Question 4: Pyridostigmine inhibits acetylcholinesterase in the synaptic cleft, thus slowing down the hydrolysis of ________.
DextromethorphanKynurenic acidKetamineAcetylcholine

Question 5: To prevent constant stimulation once the ACh is released, an enzyme called ________ is present in the endplate membrane close to the receptors on the post synaptic membrane, and quickly hydrolizes ACh.
AcetylcholinesteraseButyrylcholinesteraseCholine acetyltransferaseIbogaine

Question 6: In a synapse, action potentials are conducted along motor nerves to their terminals where they initiate a Ca2+ influx and the release of ________ (ACh).
KetamineDextromethorphanKynurenic acidAcetylcholine

Question 7: Pyridostigmine is now also used to treat ________.
HypertensionPulmonary hypertensionOrthostatic hypotensionAortic dissection

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