ALCOHOL Flashcards
T OR F
calories from alcohol are empty of
nutrients such as proteins and vitamins and cannot be used
in the repair of damaged tissue.
T
Alcohol metabolism pathways
- reduction of nicotinic acid dehydrogenase (NAD) to nicotinamide adenine dinucleotide (NADH)
- involves______ which is located in the peroxisomes and mitochondria
- “___________, located
mainly in the microsomes of the endoplasmic reticulum.
catalase,
microsomal ethanol oxidizing system” (MEOS)
Persons who flush easily after ingestion of alcohol (Chinese, Japanese, and other Asians)
differ from “nonflushers” with respect to the metabolism
of _______ rather than to the metabolism of alcohol
acetaldehyde
At a blood alcohol level of 30 mg/ dL, a\_\_\_\_\_\_\_\_was detectable, and at 50 mg/ dL, \_\_\_\_\_\_\_\_\_. 100 mg/ dL, ataxia was obvious; at 200 mg/ dL, there was\_\_\_\_\_\_ and a reduced level of mental activity; at 300 mg/ dL, the subjects were \_\_\_\_\_; and a level of 400 mg/dLaccompanied by deep anesthesia-was potentially fatal
mild euphoria
mild incoordination
confusion
stuporous
once the absorption of
alcohol has ended and equilibrium has been established
with the tissues, ethanol is oxidized at a _______ rate,
independent of its concentration in the blood
constant
_____ drug acts by raising the tissue concentration necessary for
the metabolism of a certain amount of acetaldehyde
per unit of time
disulfiram (Antabuse),
The patient taking both disulfiram
and alcohol will accumulate an inordinate amount
of acetaldehyde, resulting in_______, _______, ________
nausea, vomiting, and
hypotension
other drugs-notably the_________, _________,__________–have effects like those
of disulfiram but are less potent
sulfonylureas,
metronidazole, and furazolidone
One likely site that relates to the acute intoxicating effects of alcohol is a receptor for the inhibitory neurotransmitter _________ and its associated chloride ion channel.
garnmaarninobutyric acid (GABA)
Like the GABA-chloride channel, the___________, which transduce signals
carried by glutamate (the major excitatory transmitter in
the brain), are sensitive to extremely low concentrations
of alcohol.
N-methyl-oaspartate
(NMDA) receptors
There is also evidence that alcohol selectively
potentiates ______ receptor-ion currents, and the
activity of this receptor has been implicated in alcoholand
drug-seeking behavior and addiction.
serotonin
alcohol has an exclusively excitatory rather than a sedative effect. This reaction has been referred to in the past as pathologic, or complicated, intoxication and as _________
acute alcoholic paranoid state
Pathologic intoxication may require the use of restraints
and the parenteral administration of _______ or _________, repeated once after 30 to
40 min if necessary
diazepam (5 to 10
mg) or haloperidol (2 to 5 mg)
refers to an interval of time, during a period of severe intoxication, for which the patient later has no memory-even though the state of consciousness, as observed by others, was not grossly altered during that interval.
A l co h o l i c “ B l a cko uts “
type of memory affected in alcohol black out
short term/ retentive
In alcohol intoxication,
The use of ______ should be
considered in comatose patients with extremely high
blood alcohol concentrations (>500 mg/dL), particularly
if accompanied by acidosis, and in those who have concurrently ingested methanol or ethylene glycol or some other dialyzable drug
hemodialysis
The characteristic features of
this intoxication, however, are damage to retinal ganglion
cells-giving rise to scotomata and varying degrees of
blindness, dilated unreactive pupils, and retinal edemaand
bilateral degeneration of the putamens, readily visible
on CT scans.
methyl alcohol intoxication
In Methyl alcohol intoxication,
The most important aspect of treatment
is the intravenous administration of large amounts of
______
sodium bicarbonate to reverse acidosis
Hemodialysis and ______(see later) may be useful adjuncts because of the slow rate of oxidation of methanol.
4-methylpyrazole