neuro/ endo/ musculoskeletal/ mental health Flashcards
(81 cards)
- Bipolar first-line treatment, what are the risks and how often check labs?
Lithium is the GOLD standard
*Risk of neurotoxicity (alters the normal activity of the nervous system) with serum levels > 2.0
* Draw levels 2 x week until levels are stable, then every 1-3 months
* adversely affects kidneys in 20 % of patients
- Suicide risk factors
o Ages 15-24 and > 60 y/o
o Older people who have recently lost a spouse (death or divorce)
o Plan involving a gun or other lethal weapon/firearms in the house
o Hx of attempted suicide and/or family hx of suicide
o Mental illnesses (depression or bipolar)
o Hx of sexual, emotional and/or physical abuse
o Terminal illness, chronic illness/chronic pain
o Alcohol/substance abuse
o Stressful life issues (financial or relationship problems)
o Medical professionals/public service
o American Indian and Alaskan native youth/middle age have the highest risk
o Blacks have the lowest risk
- Brain tumor symptoms
*New onset HA (mild-severe), throbbing, progressively worse,
*unexplained n/v,
*blurred/double vision,
*gradual loss of sensation of movement in extremities, off-balance,
*slurred speech
Brain tumor Differential dx:
o CVA, MS, SAH, meningitis, optic neuritis, AVF, brain abscess, neurosyphilis
Brain tumor Treatment:
surgery, radiation, chemo, meds/steroids
Seizure disorder cause
Caused by a sudden burst of electrical activity from a collection of cerebral cortex neurons which affect motor, sensory, and cognition
Generalized seizures verses partial seizures
Generalized seizures are associated with a complete loss of consciousness, whereas partial seizures preserve wakefulness; involuntary twitching or stiffness in the body
What are the 2 types of focal seizures and what are focal seizures?
Focal (affecting just one part of the brain):
- Complex partial- impairs LOC
- Simple partial- LOC not impaired (motor-sensory is affected)
What are generalized seizures and what are the 5 kinds?
(affecting the entire brain)
1. tonic-clonic/”grand mal”-sudden stiffening of muscles/contractions
2. absence sz-“blank stare” or brief interruption in activity
3. myoclonic-sudden, brief, shock-like contractions, usually during sleep
4. tonic-sudden muscle stiffening, sudden without warning and can lead to injury
5. atonic-sudden loss of muscle control , sudden without warning and can lead to injury
Treatment of seizures:
Do you treat seizures first time?
How do you choose a medication?
What is preferred in treatment?
First-line focal seizure treatment?
*No medication recommended for 1st time seizure
*Choice of med depends on type of sz, comorbities, etc
*Monotherapy is preferred (achieve best control of sz with least meds possible)
Focal Seizures
* 1st line: Carbamazepine (Tegretol) or lamotrigine (Lamictal)
- Parkinson’s s/sx
Who gets it?
TRIAD (rest tremors, muscular rigidity, bradykinesia)
> 50 y/o
more common in men
What is Parkinson’s 1st line Treatment?
What is the treatment for essential tremors?
Treatment
*1st line: Sinemet TID 25/100mg PO TID with meal or snack to avoid nausea
* Start low and titrate slowly
*For essential tremors: propranolol 60-320mg daily or long-acting (Inderal LA)
Parkinson’s tests
There are no specific tests
*Get a good H&P
*look for s/s and red flags
Multiple sclerosis Symptoms
*Fatigue (95% of patients)
* visual loss, diplopia, nystagmus and optic neuritis
* Vertigo
* Walking/balance problems/Ataxic gait
* Weakness of the legs/Foot drop
* Paresthesias of extremities
* Bowel or urinary dysfunction
* Electric shock like sensation runs down the back when bending neck forward
*Muscle spasms, stiffness/weakness
Multiple sclerosis tests
How can a diagnosis be made?
What criteria is used?
What two other tests can be orderd?
*The key is to get a good H&P.
For the dx to be made, 2 or more areas of the CNS must be involved at 2 different periods of time (Vision, speech, strength, coordination, balance, position)
* MRI of brain, spine may show lesions
* LP-eval for lymphocytes and IgG bands)
* McDonald criteria (H&P, lesions or lab tests, MRI)
Multiple sclerosis Treatment:
What are the goals?
What treats acute exacerbations (mainstay of treatment)?
What else can you use?
Should you refer?
3 major goals:
1. delay progression
2. manage symptoms
3. treat acute flares
*Glucocorticoids are the mainstay of treatment for acute exacerbations
*Can also use IV Depomedrol and/or oral prednisone
*Refer to neurology
*Disease-modifying therapies (B-Interferon which are substances which help immune system fight disease)
What is Myasthenia gravis?
Autoimmune dx caused by an error in the transmission of nerve impulses to muscles
Myasthenia gravis s/sx
*muscle fatigue,
* weakness with use,
*eye movements and speech are affected
*weakness of the eye muscles, drooping of the eyelid, blurred vision, changes in facial expressions, dysphagia, dyspnea, dysarthria
s/s are usually worse later in the day, may subside with rest
Myasthenia gravis Test?
What is a positive test?
What else could they do?
*Tensilon test: Tensilon drug is injected into the muscles which prevents the breakdown of Ach (neurotransmitter that nerve cells release to stimulate your muscles)
* A positive test for MG if their muscles get stronger after the injection
*EMG (electrymyography)-electrodes used to assess the health of muscles and nerve cells)
*Serum antibodies (IgG) as a rescue med but not long term while you’re waiting for meds to take effect
Myasthenia gravis Treatment
Drug of choice?
Other drugs?
Other treatment?
What should patients be screened for?
*Symptomatic and supportive treatment
-Meds
* Mestinon/pyridostigmine is the drug of choice
* Steroids
* Immunosuppressants
* IVIG
* Plasmapheresis
All pts should be screened for thymoma; thymectomy can be curative
Carpel tunnel :
What else is it called?
What causes it?
What are the s/sx?
Hallmark symptom?
“wake and shake syndrome”
*Caused by entrapment neuropathy of the median nerve at the wrist
s/s: gradual onset (wks to months); paresthesia on the thumb, index finger, and middle finger areas; weak grip; hx occupation/hobby with repetitive hand movements
*aching sensation that radiates into the thenar area (base of the thumb)
Hallmark symptom-nighttime awakening with pain and numbness
Carpel tunnel tests
tests:
Most useful dx test is a median nerve conduction velocity study ($$$)
Tinel’s sign: tapping the anterior wrist briskly causes pins and needles sensation along the median nerve
Phalen’s sign: flex both hands against each other for 1 min; positive if tingling down median nerve
Carpel tunnel treatment
Treatment
*NSAIDs or steroid injections
*Splints
*Avoid aggravating factors
*Ortho referral
*Surgery for decompression of the carpal tunnel with release
- Rheumatoid arthritis