Neuromuscular conditions Flashcards
disturbance in transmission of impulses at the post-synaptic Neuromuscular Junction (NMJ). What is this? What kind of disease is this?
- Myasthenia Gravis
* Autoimmune disorder
What does MG involve? (Receptors)
involves antibody-mediated disruption of Acetylcholine Receptors
MG is often associated with ____ and mostly occurs in ______.
- Thymus tumors
* Women in their 30’s
How can MG be fatal?
may be fatal due to respiratory complications e.g. aspiration pneumonia.
Subjective assessment for MG? 5 Ds
- extreme muscle fatigue
- Diplopia –double vision
- Dysphagia –difficulty swallowing/chewing
- Dysarthia- difficuly speaking
- Dyspnea
- Descending weakness
Objective assessments for MG include:
- Early sign?
- Mouth?
- Vision?
- Voice?
- Pitosis of eyelid (early sign)
- Myashenic smile - snarling
- Strabismus
- Voice weakness and articulation problem
(EOM)- visual axis alignment off, uni or bi
Strabismus
In MG Muscle strength decreases with______. This can cause things such as?
- Muscle strength decreases with use
* Can cause respiratory failure,bowel and bladder incontinence
What is a tensilon test and what is it used to determine?
- IV edrephonium given and muscle strength will improve for five minutes
- used to determine if cause is MG
Medication used for treatment of MG? 2 examples. What else can be used?
Anticholinesterases- Pyridostigmine, Neostigmine
*Immunosuppresants (Azothiaprine, prednisone).
Surgical treatment for MG? What can be done before this in crisis?
- Thymectomy - may cause remission in some
* Plasmapheresis
When may a client with MG Need a ventilator?
*with respiratory paresis unresponsive to drugs, it may be necessary for complete respiratory support
Onset - ____ and _____ general muscle weakness. What will the client have issues doing? What is this?
*Abrupt and severe muscle weakness, client will have issues speaking, swallowing, and maintaining respiration. Myasthenia gravis
3 causes of MG?
*UNDERmedicated, infection, and stress
2 nursing interventions for MG?
- Give edrephonium to see if there is improvement (positive tensilon test)
- Increase anticholenestrace drugs
Mnemonic for Cholenergic crisis for signs and symptoms.
- SLUDGE
- Salivation/sweating
- Lacrimation
- Urination
- Defication
- Gastrointestinal distress
- Emesis
What is the cause of cholenergic Crisis? How can this be tested for? What should the nurse do?
- Overmedicated with anticholenestrase drugs
- Tensilon test will be negative (muscle weakness will worsen after edrophonium is given
- Stop anticholenestrase drugs as prescribed by doctors order
what 3 things should be available bedside for MG client?
*Tracheostomy kit, endotracheal tube, suction
Medication for MG should be given on _____ _____. Know ________ drugs like. ____ ______ e.g. morphine
- Strict schedule
- Know contraindicated drugs
- Respiratory depressants such as morphine
In MG meals need to coincide with what? What is the onset and duration of Pyridostigmine?
- Drug action
* 30-35 minutes
Antidote for Anticholinesterase For: Edrophonium, Pyridostigmine, Neostigmine
*Atropine
5 priorities for MG in order
Breathing, Swallowing, Medication, Rest, Health Promotion
slowly progressive CNS disease demyelinated patches disseminated in the brain and spinal cord.
Multiple Sclerosis or demylinating disease
What kind of disease is MS? What is the cause?
Autoimmune
*Cause unknown (May be latent virus, immunologic abnormality, environmental factors - temperate climate zones)