bipolar affective disorder Flashcards
how long do you have to have an elevated mod for to have mania?
what symptoms are they likely to have?
- at least 1 week
- irritability
- pressure of speech (increased talkativeness)
- flight of ideas
- loss of social inhibitions
- insomnia/ reduced need for sleep
- inflated self esteem/ grandiosity
- distractibility
- reckless or foolish behaviour
- raised libido
what is the difference between mania and hypomania?
- persons mood elevated, with same symptoms as mania
- has to last at least 4 days
- but it does not significantly affect AODL
- no psychotic episodes
what baseline investigations should you do before starting lithium?
- pregnancy test
- Thyroid and kidney function
- ECG
- FBC
when should you test lithium levels?
- 12 hours after last dose
what are the side effects of lithium?
- diabetes insipidus
- hypothyroidism
- kidney failure
- weight gain
- fine tremor
- polyuria/ polydipsia
- GI upset
what are the risk factors for lithium toxicity?
what is normal range for lithium?
- Drugs (NSAIDs, diuretics)
- UTI
- dehydration
- renal failure
- 0.4-1
what are early symptoms of lithium toxicity?
the late ones?
- blurred vision, anorexia, n+v, diarrhoea, coarse tremor, ataxia, dysarthria
- confusion, renal failure, delirium, fits, coma, death
what is the treatment for lithium toxicity?
- give fluids and start diuresis/ dialysis
what should everyone be asked who comes in with a history of depression?
- whether they have had any previous feelings of disinhibition or irritability
what non pharmacological treatment should be offered to people with bipolar depression?
pharmacological?
- high intensity psychological intervention
- check lithium levels, consider adding mood stabilisers, APs and antidepressants e.g. fluoxetine and quetiapine
if a patient develops mania with a previous history of depression what would you enquire about?
what is the first line treatment for mania if not already on mood stabiliser or AP?
2nd and 3rd line?
- whether they are on SSRI, possibly causing manic symptoms (take them off SSRI)
- antipsychotics: haloperidol, olanzapine, quetiapine, risperidone
- lithium
- sodium valproate
before starting someone on an AP what baseline investigations must you check?
- weight or BMI (weight gain)
- HbA1c (reduced glucose tolerance)
- blood lipid profile (increased risk of stroke)
- blood pressure (antiadrenergic)
what should be monitored whilst taking APs and how often?
how long should antipsychotics be stopped over?
- weight (weekly for 1st 6 weeks then at 12 weeks)
- emergence of movement disorders
- pulse and BP after each dose change
- 4 weeks
what do you need to monitor when starting valproate?
who should not be offered valproate at all?
- FBC and LFTs
- stop immediately if abnormal liver function or blood dyscrasia detected
- women of child bearing age