Psych Flashcards
third person hallucinations
schiz
mesocortiyal dopamine hypoactivity
negative and cognitive symptoms in schiz
subcortical dopamine hyperactivity
psychosis
dopamine pathways in the brain
tuberoinfundibulnar - prolactin release
nigrostriatal - extra pyramidal motor movements
subcortical and mesocortical - mesolimbic system - motivation and reward
mesolimbic Da blockage
Da agonism
depression
psychosis
clozapine SE
agranulocytosis
weight gain
what atypical anti psychotic causes the most weight gain
olanzapine
when should clozapine be prescribed
need to try 2 other anti psych
only consultant can prescribe
monster once a week for first 6m then once every 2 weeks for the next 6m then every four weeks and one month after discontinuation
limbic system functions
M2OVE motivation memory olfaction visceral afferents emotion
brain changes in schizophrenia
reduced frontal love volume and grey mater
enlarged lateral ventricles
reduced grey matter in the temporal cortex
pressure of thought
varied ideas in abundance (characteristic of mania but can also be seen in schix)
poverty of thought
px reports lack/absence of thought
thought blocking
abrupt and complete interruption of stream (strongly associated with schizophrenia)
flight of ideas
quickly moving from one topic to another but there is a link unlike in knight’s move thinking where there does not appear to be a link between point A and point B. - seen in bipolar during manic phase
rx of EPSE
procyclidine
amygdala
involved in normal response to threat
PFC
dampens down amygdala response to threat (fewer connections less effective)
management of OCD
- SSRI, 2. SSRI, 3. TCA or SSRI, 4. SSRI or TCA - (TCA used is chlomipramine) so essentially an SSRI and if there is a partial response at any of those points, consider CBT as an adjunct
LDs
borderline 70-80 mild 50-69 mod 35-49 severe 20-34 profound <20
becks triad
neg feeling about self world and future
NMDA antagonists
produce psychotic symptoms
alcohol withdrawel
use chlordiazepoxide ( 30mg QDS, 25mg QDS, 20 mg QDS, 15mg QDS, 10mg QDS, 10mg TDS, 10mg BD, 10mg OD - nocte).
alcohol withdrawel seizures
within 48 hours
delirium tremens
between 48 and 72h
eosinophilic inclusions
lewy body dementia and PD