Prep for USMLEPrep for USMLE
         Forum      |     Resources New Posts   |   Register   |   Login

 hypocalcemic tetany  

Post Reply  
  • 0/5
  • 1
  • 2
  • 3
  • 4
  • 5

Author5 Posts

can anybody explain to me d mechanism of hypocalcemic tetany?i know it causes increased excitability of d nerve fibers.but how?


it's just a speculation tht Ca++ binds to the extrecellular component of voltage gated Na+ channels and modulate it's responsiveness! thereby dec. Ca++ levels will lead to enhanced sensitivity to incoming stimuli.


as you know Skl. muscles are not dep. on EC Ca++. they use their own sarcoplasmic depot.
i think hypo-Ca simply decreases the threshold for depolarization at the endplates similar to the axons which leads to more frequent EPAPs which cuase tetany.


hey! tht aint convincin enough.someone help me out!darius r u sure?


ssrpk is rite....
Ca+ compete for Na.
If Ca level is rise it compete for Na & cause dec: excitibility of neurons..
& If Ca level dec: then there is inc: sensitivity to Na+......Tetany.

Bookmark and Share

This thread is closed, so you cannot post a reply.

Login or Register to post messages

show Similar forum topics

Question- Hypocalcemic tetany?
hypocalcemic tetany & Resp. alkalosis
show Related resources

Advertise | Support | Premium | Contact