Eating Disorders Flashcards
what is Russels sign?
callouses on knuckles from sticking hands down throat to vomit
Treatment of bullemia nervosa?
CBT
Fluoxetine
why seizures in bullemia?
electrolyte imbalance
Binges followed by regret, preoccupation with food, compensator actions and body image distortion?
bullemia nervosa
BMI in anorexia?
less than 17.5
main difference between anorexia and bullemia?
weight. anorexia must technically be classified as underweight. Bullemia more aware of their behaviours, anorexia are not
self induced weight loss, body image distortion, endocrine disorders, delayed or arrested puberty ?
ANOREXIA
signs of anorexia?
cold peripheries, lanugo hair, cold sensitivity, poor sleep, bradycardia, hypotension
what BMI constitutes very high risk?
under 13.5
what cardiac abnormalities do you get in anorexia?
QT prolongation
General management of anorexia?
education, monitoring, dietician input, CBT, family therapy
when do you use anti depressants anorexia?
those who have co morbid illness
Difference between binge eating disorder and bullemia?
no compensation to counter the binges and body shape and weight less important
most things are low in anorexia. which levels are high?
G’s andC’s raised:growth hormone,glucose, salivaryglands,cortisol,cholesterol,carotinaemia
examples of TCAs?
amytryptyline, nortryptyline, lofepramine
what is their mode of action?
they primarily block the reuptake of noradrenaline and serotonin from the synapse by blocking their transporters
why do you get side effects from TCAs?
they antagonise dopamine, histamine and muscarinic acetyl choline receptors
when would you use a TCA?
they are usually second line to SSRIs
ability to drive and operate machinery with TCA?
t for tired
they are a strong sedative. This may affect ability to drive or operate heavy machinery
what is worse to over dose on? SSRI or TCA?
TCA
when would a TCA be avoided ?
if recent MI or history of arrhythmia
effect of TCA on anxiety?
tackles anxiety
side effects of TCAs?
sedation and weight gain
remember they block Acetylcholine, side effects due to this?
dry mouth, constipation, blurred vision, urinary retention, sexual dysfunction
what are SNRIs?
serotonin and noradrenaline reuptake inhibitors
examples of SNRIs?
venlafaxine and duloxetine
method of action of SNRI?
block serotonin and noradrenaline reuptake
side effects of SNRIs?
GI upset
hypertension, palpitations, diziness
mirtazipine - what drug class?
NASSA
mechanism of NASSA?
antagonizes presynaptic noradrenaline, serotonin and histamine receptors
when would you use mirtazipine?
weight loss and sleep issues
what type of drug is phenelzine?
MAOI
is phenelzine reversible?
no
reversible MAOI?
moclobemide
when would you use MAOI?
atypical depression
side effects ?
diziness, postural hypotension, anticholinergic effects
if you are starting a MAOI, what do you need to do about SSRI/SNRI?
need to stop these first as SSRI/SNRI interacts with MAOI