Psychiatry Flashcards
(262 cards)
What are the 3 core symptoms of depression
Low/depressed mood
Anhedonia - loss of interest/pressure
Anergia
What are other typical symptoms of depression
- Poor Appetite
- Disrupted Sleep
- Psychomotor Retardation (sluggish) or agitation
- Decreased Libido
- Reduced ability to concentrate
- Feeling of worthlessness and inappropriate guilt
- Recurrent suicidal thoughts/attempts
What is the Diagnosis of Depression
- 2 core symptoms (Severe = 3) + 2 or more typical symptoms
- Symptoms present throughout the day
- For every/nearly every day
- For > 2 weeks
- Must represent change from normal personality
- Without drugs/alcohol, medical disorders or bereavement
What are the causes of depression
Biological - Hereditary, Familial, Low monoamine (Low serotonin, Low dopamine, Low noradrenaline)
Psychological - Personality trait, Low self esteem
Social - Disruption due to life events, stress and social isolation
What may be symptoms of severe depression
Cotard Syndrome - Nihilistic Delusions
Auditory and Visual Haluucinations
Delusions
What are differentials for depression
Psychotic Disorders Dysthymia Substance Misuse Dementia Sleep and Neurological Disorders Physical Illness Medication SE e.g Beta Blockers
What conservative management can be done for depression
Exercise Engaging in productive activity Socialising Improving Sleep - good sleep hygiene Relaxation Techniques
How is mild depression managed
Low intensity psychological interventions - sleep hygiene, anxiety management, guided self help (books, websites and apps), computerised CBT
How is moderate depression managed
Combination of Antidepressant + high intensity psychological intervention (CBT), group therapy, family therapy
How is severe depression managed
This includes psychotic depression, increased risk of suicide and atypical depression - THINK: S uicide plan U nexplained guilt or worthlessness I nability to function C concentration impaired I mpaired appetite D creased sleep E energy low
Urgent - Rapid mental health assessment and maybe inpatient admission - Give ECT &/or rapid prescription of Antidepressants
What are the NICE guidelines for Antidepressants
1st line: SSRI e.g Sertraline, Citralopram and Fluoxetine (<18yrs)
2nd line: Alternative SSRI
3rd line: SNRI (venlafaxine) or NaSSA/Tetracyclic (mirtazapine) if two SSRIs haven’t worked
4th line: Lithium, TCA, Monamine Oxidase Inhibitors
What are side effects from ECT
Amnesia
Headaches
Confusion
When is ECT used
When other treatments have been ineffective and a condition is life threatening (severe manic episode, severe depression, catatonia)
What is one contraindication for ECT
Cochlear Implant
What are the SE of SSRIs
The 8S’s
- Sodium (low)
- Serotonin Syndrome
- Sexual Dysfunction
- Sleep (insomnia)
- Sickness (nausea/vomiting) and Stomach Upset (diarrhoea, constipation, abdo pain)
- Size (weight gain)
- Stress
- Suicide (first 2 weeks increased risk of suicide)
How long do SSRIs take to work and what should you be aware of when starting them
Can take up to 4 weeks to work there may be initial worsening of symptoms and increased risk of suicide
Once effective dose of antidepressant how long should they be continued for and what symptoms can occur if you stop them suddenly
6 months
Flu like symptoms, headaches, shock like sensations, dizziness, insomnia - withdraw over 4 weeks or longer to reduce these
How do SSRIs work
Prevent reuptake of serotonin in the synaptic cleft therefore increasing Serotonin levels
What does mirtazapine do
Mirtazzzzapine makes you sleepy (Zzz)
Weight Gain
What is serotonin Syndrome
A life threatening condition caused by to much serotonin (co-administration of some antidepressants or not cross tapering can cause it) Classic Triad: - Neuromuscular Excitability - Autonomic Dysfunction - Altered Mental Status
Symptoms: Hyperthermia, Diaphoresis, Hypertension, Tachycardia, N/V, diarrhoea, Tremor, Hypertonia/rigidity, Hyperreflexia, Confusion, Seizure
How is serotonin syndrome managed
Immediately stop Antidepressants
Supportive care: fluid replacement, antihypertensives
Benzodiazepines: to sedate
Cooling Methods
What can antidepressants sometimes induce
A manic episode
What is a side effect of Citralopram
Dose dependent prolongation of QT interval so check ECG - unnoticed can lead to Torsades de Pointes
What is Mania
- Abnormally elevated, expansive or irritated mood and increased goal directed behaviour, energy and activity not attributable to organic psychic disorder or psychotropic substances
- Lasting for at least a week
- Significantly impairs function
- Patient requires hospitalisation
- There may be psychotic symptoms