Imp step 3 anki Flashcards
while administering Nalaxone, what determines improvement in the patient?
Ventilation RR>12/min
what class of drugs are methamphetamines?
Sympathomemitic amines
what 3 neurotransmitters does MDMA act on?
Noreepinephrine, serotonin and dopamine
SGAs act on which additional receptor as compared to FGA, thus reducing EPS symptoms?
antagonsits at the 5HT-2A receptors
Cardiac complication of coccaine intoxication?
thrombus formation
2 complications ingestion of coccain can cause?
angioedema and pharyngeal burns
eye coplications of coccaine
acute angle closure glaucoma
prgnancy complication of coccaine?
abruptio placenta
GI complication of cocaine?
perforated gastric ulcers
Cocaine blocks ar 2 sites?(mechanism of action)
Monoamine reuptake and Na channels are blocked
ECG changes with cocaine?
QRS prolongation, due to Na channel blockage
Rx:IV sodium bicarbonate
while intubating or giving a cocain intoxicated patient a musle relaxant- which drug shod NOT be used, which drug should?
Do NOT: succinyl choline- prolonged effect
use: Rocuronium which is a non- depolarizing neuromuscular blocker
Managment of cocaine intoxication?
1- benzo
2- phentolamine, nitroglycerine, nitroprusside (for CVS complications)
3- correct hypotension with IV isotonic saline, vasopressors
which 2 drugs are avoided in cocaine intoxicated patient?
beta blockers and succinylcholine
HIV associated dementia patients have 3 specific clinical features?
- slow movements
- difficulty with smooth limb movements
- memory decline
which psychiatric illness do most Wilson disease patients exhibit?
depression
which 2 benzodiazepines are used to treat alcohol withdrawal?
lorazepam (intermediate acting-safe in liver damage pts) and Chlordiazepoxide (long acting benzo- not safe in liver damage patients)
2 drugs that can increase or decrease Lithium levels?
loop diuretics and CCB
4 drugs that increase Lithium levels?
- ABX: tetracycline, metronidazole
- Thiazide
- ACE-I and ARBs
- NSAIDs except aspirin
2 drugs that reduce Lithium levels?
- Theophylline
2. Spirinalactone- loop sparing potassium diuretics
Lorazepam challenge test in the diagnosis of catatonia?
1-2 mg IV benzodiazapine , shows symptom improvement in 5-10 minutes
Panic disorder needs symptoms for how long to be diagnosed?
> 1 month
hallucinations that require hospital admission?
command auditory hallucinations
A patient given FGA or SGA is at risk of developing neuroleptic malignant syndrome for how long?
2 weeks after starting the drug
organophosphate poisoning- mechanism?
inhibit acetylcholinesterase–> reduced Ach breakdown–> Ach buildup–> “Leaky symptoms” with bradycardia, pin point pupils
3 OP Poisoning symptoms related to nicotine receptors?
- Paralysis
- muscle weakness
- fasciculations
3 CNS complications related to OP poisoning?
seizure (treat with benzos), coma and confusion
4 steps management of acute OP poisoning?
- 100% o2 and endotracheal intubation
- decontaminate clothes and environment
- Atropine
- Pralidoxime (treats both nicotinic and muscarinic symptoms )
what does Pralidoxime do?
reactivates acetylcholinesterase
what is Organophosphate induced delayed polyneuropathy?
1-5 weeks after OP poisoning, patient may develop painful glove and stocking pins and needles pain
what type of CBT is used as first line for specific phobia?
exposure therapy
Which dopaminergic pathway accounts for movement disorders such as chorea and tics, EPS symptoms?
Nigrostriatal
chronic methaphitamine users develop psychosis. what is the managment?
1- CBT to prevent relapse into using again
2- anti psychotics
Brain changes seen in panic disorder?
decreased amygdala volume
brain changes seen in PTSD?
decreased hipocampal volume
conduct disorder symptoms need to be there for how long to make a diagnosis?
1 years, with a symptom at least in the last month
medication of ADHD?
methyphenidate(not given for <6), amphetamines
clonidine, guanfacine(alpha adrenergic antagonists), atomoxetine
Medication in tourettes syndrome?
Anti psychotics: Haoperidol, risperidone, PIMOZIDE(QT prologation)
how long odes it take for OCD to develop post Touretts syndrome?
3-6 years
What kind of (2) kidney injury does chronic lithium therapy cause?
- Tubulo interstitial Nephritis
2. Nephrogenic diabetes insipidus
5 tests to do before stating then patient on Lithium?
BUN, creat, TFT, urine analysis, ECG