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Neurology Week 1
n/a
30
Medical
Professional
11/06/2010

Additional Medical Flashcards

 


 

Cards

Term
Management of ischemic stroke
Definition
restoration of blood flow
- risk of hemorrhage (increase BP, thrombolytics)
- TPA

limitation of deficit
primary prevention
secondary prevention
- cardioembolic: warfarin (A-fib)
- aspirin (everyone)
- statin (LDL> 100)
Term
management of berry aneuryms
Definition
oxygenation, BP
calcium channel blocker (nimodipine)
management of vasospams
clip/coil (<3 days, >14days)
Term
cavenous angiomas
Definition
closely packed, distended blood vessels of varying wall thickness
Term
capillary telangiectases
Definition
small caliber, multiple within the normal brain
Term
venous angiomas
Definition
one or more dilated veins in normal brain
no arterial compartment
Term
contra-coup injury
Definition
brain focal contusion
brusing area not the same as impact area
Term
uncal herniation
Definition
uncus of temporal lobe shift medially
comprssion on CN III - lose parasympathetic, extraocular muscle
compression on PCA
compression on cerebral peduncle - contralateral hemiparesis
Term
tonsillar herniation
Definition
compression of medullar oblongata
- respiration depression and death
Term
frontal mass lesion symptoms
Definition
behavioral changes
poor decision making
decreased work performance
motor weakness (if posterior)
Term
parietal mass lesion
Definition
contralateral motor weakness (if anterior)
contralateral sensory change
dominant parietal lobe syndrome
- gerstmann's (agrahia without alexia, right/left disorientation, acalculia finer agnosia
receptive language error
Term
temporal lobe mass
Definition
language disturbance
memory, visual impairment
seizure common
Term
cerebellum lesion
Definition
hydrocephalus
ataxia of gait
dysmetria of arms
speech changes
Term
TRPV1
Definition
polymodal receptors
Term
descending pain modulation pathways
Definition
serotonin: periaquaductal gray -> rostral ventromedial medulla -> dorsal horn
NE: cingulate gyurs -> dorsolateral pontine tegmentum -> dorsal horn
DA: hypothalamus -> dorsal horn
Term
allodynia (hyperesthesia
Definition
innocuous pain -> suddenly painful
Term
hyperalgesia
Definition
mildly painful -> intensely painful
Term
complex regional pain syndrome
Definition
antecedent injury -> severe pain
regional autonomic abnormality - high temperature, skin discoloration, edema
Term
uses of strong opioid (morphine)
Definition
severe pain
allays anxiety and sedates
Acute MI - with vasodilators
acute pulmonary edema
general anesthesia
closed head injury - caution
Term
side effect of opioids
Definition
euphoria
ventilation depression - increase ICP
nausea vomiting (emesia)
COPD, sleep apnea, other ventilation/respiratory problem -> safe dose can be fatal
constipation
gall bladder pain/spasm
hypotension
Term
uses of fentanyl
Definition
parental - general anesthesia, + midazolam -> conscious sedation
transdermal - hospice, not for fast management
transmucosal - preanesthetic medication (lollipop)
Term
uses of methadone
Definition
good oral bioavailability
long half life -> accumulation
detoxification for morphine addiction
Term
meperidine
Definition
use for less than 48 hrs, low dose
advantages: little bile duct spasms
disadvantages: frequent dosing, toxic metabolite -> tremor, seizure
DDI: MAOI and drugs that increase serotonin
Term
heroin
Definition
lipophilic
active metabolite in CNS
Term
uses of hydrocodone, oxycodone, codeine
Definition
moderate pain
antitussive
potentiated by aspirin,acetaminophen
Term
oxycontin
Definition
oxycodone controlled release tablet
if not swallowed whole, rapid absorption and intense opioid-like euphoria
Term
pentazocine
Definition
partial opioid agonist
Term
naloxone
Definition
opioid antagonist
tx opioid OD
no intrinsic toxicity
need frequent dosing
induce withdrawal syndrome if opioid dependent
Term
Toxicity of local anesthesia
Definition
CV depression (Na channel blockade)
repiratory depression
generalized convulsive seizures (progressive CNS stimulation)
Term
benzocaine
Definition
don't ionize well at physiological pH
topical use only
hydrolyzed to PABA
Term
cocaine
Definition
mucosal surface usage
cortical stimulant
block reuptake of NE -> sympathomimetic -> vasoconstriction
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