toxic disorders Flashcards
alcohol ETOH
blood alcohol content is in grams per 100 mls blood
1 g per 100 mls is 1%
BAC depends on BW, amt ETOH consumed, time elapsed since consumption
BAC- mood and behavior
.05% euphoria
.05-.1% excitation and ataxia
.1-.2% drowsiness, loss of inhibitions, imparied judgement, confusion, slurred speech
.2-.3% stupor
.3-.4% anesthesia, coma, death d/t resp center shutdown
chronic alcohol use
liver- hepatitis and cirrhosis stomach- gastritis and ulcers heart- cardiomyopathy, HTN pancreas- pancreatitis body-nutritional deficiencies
peripheral neuropathy
exact pathogenesis unclear
may be accompanied by thiamine deficiency B vitamin
related to total lifetime accumulation of alcohol
clinical presentation
mild-severe
loss of ms bulk, diminished ankle reflexes, distal sensory changes
LE>UE
chronic alcohol use
brain effects show up as atrophy thalamus and hypothalamus cerebellum pons cerebral cortex PNS neuropathies
Alcohol withdrawal
DTs (delirium tremens)- severe
anorexia, nausea, insomnia, disorientation, confusion hallucinations
convulsions and sometimes death
delirium tremens
confusion, diarrhea, insomnia, nightmares, disorientation, agitation, severe autonomic instability (fever, tachycardia, HTN)
48-96 hrs up to 10 days since last drink
DTs occurrence
5-10% alcoholics will have them
35% will die if not treated
Wernike-Korsakoff encephalopathy
caused by alcohol ingestion
CNS
Wernike’s syndrome
chronic alcohol abuse
caused by chronic alcoholism
ataxic gait, nystagmus, confusion, apathy, disorientation
korsakoff psychosis
pt in SNF for life
loss of long-term memory
inability to learn new info
confabulation
Medical management
abstain from alcohol
expect mild improvement