depression Flashcards
(34 cards)
what are the symptoms of depression that are exhibited?
indecisiveness
disturbed sleep
fatigue
increased appetite
what further questions should Amy be asked initially?
persistent sadness/ low mood
loss of interests or pleasure
agitation or slowing of movements
feelings of worthlessness or inappropriate guilt
suicidal thoughts or acts
what are the criteria for major depressive disorder/depression?
can be mild, moderate, severe
NICE guidelines use DSM-IV criteria
at least 1 of the key symptoms most days, most of the time for at least 2 weeks:
- persistent sadness or low mood
- marked loss of interests or pleasure
4 or more associated symptoms as well as one key:
- disturbed sleep
- changes in appetite or weight gain
- fatigue/loss of energy
what other questions should be asked to determine risk?
thoughts and/or actions related to:
- self-harm (most commonly happens in young females 17-19 yrs)
- suicide (most commonly happens in middle aged males 40-59 yrs)
- harm to others (particularly important in psychosis)
asking about self-harm, suicide etc. does not increase risk of these things happening
what 5 things can be considered true when referring to self-harm?
history of self-harm is associated with increased suicide risk
can involve cutting, scratching, burning, hair-pulling - may also take other forms such as punching a wall, banging one’s head against a hard object, getting into fights
self-harm is usually a way of coping with/expressing difficult feelings
suicide is a fatal act of self-harm initiated with the intention of ending one’s own life
what is parasuicide?
apparent attempted suicide without the actual intention of killing oneself
what are some of the biological factors that contribute to risk of depression?
physical health
metabolic disorders
immune/stress response
neurochemistry
genetic vulnerability
what are some of the bio-psycho factors that contribute to risk of depression?
emotions
cognitive factors/IQ
sleep
what are some of the psychological factors that contribute to risk of depression?
coping skills
self esteem
attitudes/beliefs
personality/temperament
what are some of the bio-social factors that contribute to risk of depression?
diet/lifestyle
drug effects
what are some of the social factors that contribute to risk of depression?
culture
financial security
work/school
social support
family circumstances
what are some of the psycho-social factors that contribute to risk of depression?
interpersonal relationships
traumatic life events
what is ACE?
adverse childhood experiences
experiencing/seeing certain things during childhood can increase risk of certain behaviours/illnesses
what high risk behaviours have a strong association with ACE scores?
binge drinking
heavy drinking
smoking
high risk HIV behaviour
depression
disability caused by poor health
use of special equipment because of disability
what is bias?
occurs when systematic error is introduced into sampling or testing by selecting or encouraging one outcome or answer over others
can occur at any phase of research
e.g. confirmation bias, selection bias, recall bias
what is the difference between clinical and statistical significance?
statistical significance indicates reliability of the study results
clinical significance reflects its impact on clinical practice
“P” value, frequently used to measure statistical significance, is the probability that the study results are due to chance rather than to a real treatment effect
what is the monoamine hypothesis?
underlying pathophysiologic basis of depression is depletion in the levels of serotonin, norepinephrine, and/or dopamine (i.e. monoamines) in CNS
what are some of the drugs that can result in an anti-depressant effect?
SSRI
post-synaptic serotonin receptor agonist
monoamine oxidase inhibitor
serotonin auto-receptor antagonist
what information should be given to people before they start a course of antidepressants?
drugs take several weeks to work
symptoms may worsen initially
need to continue for around 6 months after remission of symptoms
need to wean drugs gradually - if stopped suddenly, may cause side-effects
may interact with several commonly prescribed drugs (tell doctors what medications you are taking?
what are the aims of social prescribing?
enable healthcare professionals to refer people to local, non-clinical services - variety of activities typically provided by voluntary or community sector organisations
recognises that health is determined by a range of social, economic and environmental factors - seeks to address needs in a holistic way
aims to support individuals to take greater control of their own health
many different models for social prescribing - most involve link worker/navigator who works with people to access local sources of support
how do monoamine oxidase inhibitors work?
monoamine oxidase - breaks down neurotransmitter
inhibition increases amount of neurotransmitter that can be released into the synapse
increases likelihood of neurotransmitter binding to post-synaptic receptor and triggering an action potential
how do tricyclic antidepressants work?
increase norepinephrine and serotonin
block re-uptake channels
neurotransmitter stays in synapse for a longer period of time
increases likelihood of neurotransmitter binding to post-synaptic receptor and triggering an action potential
how do SSRIs (e.g. Prozac) work?
block very specific serotonin re-uptake channels
neurotransmitter stays in synapse for a longer period of time
increases likelihood of neurotransmitter binding to post-synaptic receptor and triggering an action potential
why do monoamine oxidase inhibitors have many side effects?
affect ALL monoamine neurotransmitters (not just in brain, all around the body)
e. g. affects medication metabolism process in liver, need to be careful about drug interactions
e. g. affects digestion of certain foods - fruits, alcohol, dairy etc.