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Pharm Unit 16
Pharm - Unit 16 Nicotinic Antagonists SPC
Question | Answer |
---|---|
The Somatic Nevous System deals with? | Skeletal muscle |
How many receptor are there? | 1 the Nicotinic II |
What is the neurotransmitter? | ACh |
What enyzme terminates the neuro message and allows for repolorization? | Acetylcholinesterase |
Peripheral Acting Drugs | Given IV, dose dependant, interferes with N2 receptors |
What are the Non-depolorizing blocker (longer lasting)characteristics? | Act as antagonist, onset 3-5 min, duration 20-30 min, used for long term paralysis, IV driptitrated to minimally dose pt |
Non-depolorizing Meds | Most common is Vercuronium bromide (Norcuron)- few cardio side effects |
What are the depolorizing (short lasting) characteristics? | Stimulate the N2 receptor and then blocks it causes twitching, short acting, can cause malignanthyperthermia |
With Depolorizing Meds, ALWAYS? | Give analgesics and sedate, eyes moist, allow partial reversal every 24 hours |
Used depolorizing meds for? | Intubation |
Always remember with paralysis? | Patient can hear, taste, smell, feel, can not speak or move |
What is the purpose of the Train of Four? | To assess the degree of paralysis |
How do anticholinesterase meds effect the skeletal muscles? | Muscles relax and are ready to contract again. They are the antidote for nondepolorizing agents. Promote muscle contraction. Better muscle response. |
What is Myastenia Gravis? | Weakness of the muscles, tx by using anticholinesterase meds, top to bottom |
What is Tensilon (edrophonium)? | Short acting used in diagnosis of myasthenia gravis. pt shows temporary improvement in strength |
What is Meds are used for maintenance of Myasthenia gravis? | Prostigmine (neostigmine), Mestinon (pyridostigmine), Eserine (physostigmine) |
Under dose results in? | myasthenia crisis, they become weak, get worse |
Over dose results in? | cholinergic crisis, they become weak, get worse |