Bipolar Flashcards
___% of patients with bipolar disorder have a relative with a mood disorder
80-90%
bipolar 1
criteria have been met for at least one manic episode
bipolar 2
criteria have been met for at least one hypomanic episode & at least one major depressive episode
THERE HAS NEVER BEEN A MANIC EPISODE
diagnosis can switch from ___ to ____
bipolar 2 to bipolar 1
(never the other way around)
criteria for a manic episode
abnormally & persistently elevated, expansive, or irritable mood with INCREASED GOAL-DIRECTED ACTIVITY/ENERGY lasting AT LEAST 1 WEEK and present most of the day, nearly every day. is sufficiently severe to cause impairment in functioning
during a manic period, 3 of the following symptoms are present
grandiosity
decreased sleep
pressured speech
racing thoughts
distracted
increased activity or psychomotor agitation
involvement in activities with serious consequences
mnemonic for manic episode
DIG FAST
Distractible
Impulsive
Grandiosity
Flight of ideas
Activities dangerous or hypersexual
Sleep decreased
Talkative
criteria for a hypomanic episode
lasting at least 4 DAYS, not severe enough to impair functioning or necessitate hospitalization
but otherwise basically the same as manic criteria
main difference between mania and hypomania
mania is for at least one week & severe enough to cause impairment in social/occupational functioning
hypomania is for 4 days and does not cause impairment in social/occupational functioning
criteria for a depressive episode
5 symptoms (depression symptoms) have been present during a 2 week period, at least one of the symptoms is depressed mood or loss of interest, and the symptoms cause clinically significant impairment
_________ is not required for a diagnosis of bipolar 1 disorder
major depressive episode
goal of bipolar treatment
restore euthymic mood
goals of acute phase
rapidly control behavioral symptoms, restore sleep, stabilize mood, reduce harm to self and others
goals of continuation phase
therapy continues x2-4 months during high risk of relapse, prevent relapse & optimize medications
goals of maintenance phase
after mood stability x 3 months, improve QOL, minimize number of effective agents, provide prophylaxis for future episodes
LIFETIME TREATMENT
2 categories of pharmacotherapy for bipolar
mood stabilizers
antipsychotics
4 mood stabilizers used for bipolar
lithium
lamotrigine
divalproex
carbamazepine
indication for lithium
bipolar maintenance with SUICIDALITY BENEFIT
manic, depressive, mixed episodes
lithium place in therapy
first line monotherapy & combo therapy for maintenance & acute manic, hypomanic, depressive, mixed episodes
lithium onset
7-14 days for mania
6-8 weeks for depression
300 mg of oral formulations of lithium= ___ mEq of Li
8.12
how is lithium eliminated
renally
boxed warning for lithium
toxicity is closely related to serum Li concentrations
can occur at doses close to therapeutic concentrations
prior to initiation, ensure access to TDM
each 300 mg increase in lithium dose results in ___ increase in level
0.3 mEq/L
therapeutic range of lithium for maintenance
0.6-1.2
therapeutic range of lithium for acute mania
1-1.2
n/v/d, polydipsia, muscle weakness, fine hand tremor occur at what range of lithium
1.2-1.5
coarse hand tremor, slurred speech, confusion occur at what range of lithium
1.5-2.5
stupor, seizure, hypotension, coma, death occur at what range of lithium
> 2.5
when to monitor lithium concentrations
after steady state (5 days)
obtain 12-hour levels (trough)
baseline monitoring for lithium
renal panel (BUN, SCr, lytes)
thyroid
pregnancy test
ECG for patients >40 or underlying risks
how often to monitor lithium levels
5-7 days after dose adjustments
then for 1 month
then every 6 months
how often to monitor renal & thyroid function for Lithium
every 6-12 months
how to take lithium
with food
at bedtime
how to mitigate GI side effects with lithium
take with food
how to mitigate tremor/fatigue with lithium
HS dosing, give CR, propranolol
how to mitigate polyuria & polydipsia with lithium
HS dosing & avoid caffeine
other side effects with lithium
weight gain (diet & exercise)
dermatologic (topical tx)
leukocytosis (benign)
hypothyroidism (supplement)
diabetes insipidus
MILD toxicity lithium
hand tremor, GI, fatigue