WVU Botulinum Toxin Injections Associated with Suspected Myasthenia Gravis Case Study Below is the case stuyd I need you to answer it: Watch this video fi | Course Hero

WVU Botulinum Toxin Injections Associated with Suspected Myasthenia Gravis Case Study Below is the case stuyd I need you to answer it:

Watch this video first before you answer the questions

Heres is the video:

https://watch.liberty.edu/media/t/1_dkwhmyed

Here is the case:

Samantha is a 40-year-old Amazon warehouse worker. Over the last ten months, she experienced diplopia and eyestrain when she read for longer than 15 minutes. She became tired after chewing her food, brushing her teeth, or drying her hair. She also became extremely fatigued at work. Despite her strong work ethic, Samantha had to excuse herself from work activities because she simply could not carry the heavy equipment.

Samantha has myasthenia gravis.

1.Why does myasthenia gravis cause muscle fatigue? What are the types of muscle fibers and which fatigue the fastest?

2.Which receptors are involved in initiation and propagation of the muscle action potential? How do ions (like sodium and potassium) move across (inside/outside the cell) the sarcolemma during an action potential?

3.Explain why the following drugs may not be appropriate for treating myasthenia gravis.

a.Botulinum toxin

b.Curare

c.Hemicholinium