Bipolar disorder Flashcards
1st line drug treatment for Mania
Antipsychotics
- haloperidol
- olanzapine
- risperidone
- quetiapine
2nd, 3rd and 4the line of drug treatment of Mania
2nd line: alternative antipsychotic
3rd line: Lithium
4th line: Na Valporate
what is bipolar disorder?
condition characterised by manic/hypomanic + depressive episodes
type 1 criteria
at least 1 episode of mania which lasts longer than a week
may have experienced depressive episodes
type 2 criteria
you have experienced both
- 1 episode of severe depression
- symptoms of hypomania
signs of mania in mood (3)
- irritability
- euphoria
- lability
signs of mania in cognition (5)
- grandiosity
- poor concentration
- flight of ideas
- confusion
- lack of insight
signs of mania in behaviour (3)
- reduced sleep
- hypersexuality
- hyperactivity
signs of mania in psychotic symptoms (2)
- delusions
- hallucinations
hypomania is ___
less severe symptoms of mania, without psychosis
Causes
- childhood trauma
- stressful life events
- genetics
- medications
- organic causes
how frequently should Lithium levels be checked
- weekly initially, until the dose has has been constant for 4 weeks
- then monthly for 6 months
- then 3 monthly if stable
signs of lithium toxicity
- reduced vision
- D + V
- hypokalaemia
- ataxia
- coarse tremor
- dysarthria
- coma
- hyperreflexia
management of depressive episodes
- fluoxetine
- CBT
management of hypomanic/manic episodes
- antipsychotic: haloperidol/olanzapine
- Lithium
what can Lithium be effective for?
decreasing the likelihood of:
- mania
- recurrent depression
- further mood episodes
- suicidal feelings
what is the narrow therapeutic range of Lithium
0.4 to 1.0 mmol/L
how often is the thyroid and renal function checked in patients taking Lithium
every 6 months
concentration of lithium at lithium toxicity
> 1.5 mmol/L
precipitating factors for Lithium toxicity
- dehydration
- NSAIDs
- renal failure
- diuretics (espec. bendroflumethiazide)
- metronidazole
3 steps of management for Lithium toxicity
- volume resus w/ normal saline
- Haemodialysis
- Sodium Bicarb