Mental health Flashcards
Condition and Presentation
Anorexia nervosa
serious mental health disorder characterized by self-imposed starvation and a relentless pursuit of extreme thinness.
Subtypes of anorexia
*. Restrictive Subtype: Characterized by minimal food intake and excessive exercise.
- Bulimic Subtype: Involves episodic binge eating followed by behaviors like laxative use or induced vomiting.
ICD-11 Criteria:
- Significantly Low Body Weight
- Fear of Gaining Weight
- Distorted Body Image
- Restrictive Eating
DMS-5 criteria anorexia
- Restriction of Energy Intake
- Intense Fear of Gaining Weight
- Body Image Disturbance
Anorexia nervosa
- more common in females
- more common in dev countries
- co-occurs with other psychiatric disorders, such as depression and anxiety
Signs and symptoms of anorexia
Hypotension
Bradycardia
Enlarged salivary glands
Lanugo hair (fine hair covering the skin)
Amenorrhoea
BMI- AN vs Bulemia
- bulemia may have normal BMI
AN blood investigations q
- Deranged electrolytes - typically low calcium, magnesium, phosphate and potassium
- Low sex hormone levels (FSH, LH, oestrogen and testosterone)
- Leukopenia
- Raised growth hormone and cortisol levels (stress hormones)
- Hypercholesterolaemia
- Metabolic alkalosis, either due to vomiting or use of diuretics
Managment of AN
- CBT
- MANTRA
- SSRI
When to admit patients for ano
USS test (sit-up, squat, and stand). Admission is also indicated if proximal muscle weakness suggests weak respiratory muscles.
If patients are very unwell the MARSIPAN checklist should be used to guide management.
Refeeding syndrome
A potentially fatal disorder that occurs when nutritional intake is resumed too rapidly after a period of low caloric intake
Symptoms of refeed syndrome
oedema, confusion and tachycardia
Electrolytes in refeed syndrome
Rapidly increasing insulin levels lead to shifts of potassium, magnesium and phosphate from extracellular to intracellular spaces‚ these need to be replenished
Managment of refeed syndrome
- high-dose vitamins (eg. Pabrinex) before feeding commences
- Monitoring with daily bloods and replenishing electrolytes early
- Building caloric intake gradually with the help of a dietitian‚ NICE recommends that refeeding is started at no more than 50% of calorie requirement
cardiac symptoms assoicated with cardiac arrhythmias
Bradycardia and prolonged QTc are often seen
Negative prognostic factors for ano
- Presentation after the age of 20 years‚ difficult to reverse fixed beliefs
- BMI <16 kg/m2
- Marked anxiety when eating in front of others, which indicates issues with socialisation
- Binging/vomiting responds less well to CBT than starvation
Cautions of SSRI
- Avoid in mania
- Should be used with caution in children and adolescents
- Sertraline is best for patients with ischaemic heart disease
SSRI side effects
- GI upset
- Anxiety and agitation
- QT interval prolongation (especially associated with citalopram)
- Sexual dysfunction
- Hyponatraemia
- Gastric Ulcer
Seretonin syndrome triad
- mental status changes
- autonomic hyperactivity
- neuromuscular abnormalities
Managment of Seretonin syndrome
discontinuation of the offending drug and supportive care.
SNRIs side effects
- Nausea
- Insomnia
- Increased heart rate
- Agitation
NaSSAs side effects
Sedation
Increased appetite
Weight gain
Constipation/diarrhoea
TCA cautions
- Contraindicated in those with previous heart disease
- Can exacerbate schizophrenia
- May exacerbate long QT syndrome
- Use with caution in pregnancy and breastfeeding
- May alter blood sugar in T1 and T2 diabetes mellitus
- May precipitate urinary retention, so avoid in men with enlarged prostates
- Uses the Cytochrome P450 metabolic pathway, so avoid in those on other CP450 medications or those with liver damage
TCA side effects
Urinary retention
Drowsiness
Blurred vision
Constipation
Dry mouth
TCA toxicity signs
drowsiness, confusion, arrhythmias, seizures, vomiting, headache, flushing, and dilated pupils
Investigations of TCA overdose
blood tests (FBC, UE, CRP, LFTs), Venous Blood Gas, and an ECG to check for QT interval prolongation.
Managment of TCA overdose
- Supportive care based on patient symptoms
- NAC or charcoal in 2-4 hours
Cautions of MAO inhibitors
Cerebrovascular disease
Manic phase of bipolar disorder
Phaeochromocytoma
Severe cardiovascular disease
Side effects of MOA inhib
Hypertensive reactions (‘cheese reaction’) with tyramine-containing foods (so patients need to avoid pickled herring, Bovril, Oxo, Marmite, cheese, salami).
Should also avoid broad bean pods as these contain dopa.
class A personality disorders
- PARANOID PERSONALITY DISORDER
- SCHIZOID PERSONALITY DISORDER
- SCHIZOTYPAL PERSONALITY DISORDER
PARANOID PERSONALITY DISORDER
Characterised by a pervasive and enduring pattern of irrational suspicion and mistrust of others
Demonstrates hypersensitivity to criticism and potential slights
Exhibits reluctance to confide in others due to fear of information being used maliciously against them
Often preoccupied with unfounded beliefs about perceived conspiracies against themselve
Schizoid personality disorder
Characterised by an enduring pattern of detachment from social relationships and a restricted range of emotional expression
Displays a pervasive lack of interest in or desire for interpersonal relationships, often preferring solitary activities
Shows an emotional coldness, detachment, or flattened affectivity
Often has few, if any, close relationships outside of immediate family
Schizotypal personality disorder
Characterised by a chronic pattern of impaired social interactions, distorted cognitions and perceptions, and eccentric behaviours
Demonstrates inappropriate or constricted affect, and peculiar, eccentric or bizarre behaviour
Displays odd thinking and speech, such as magical thinking, peculiar ideas, paranoid ideation, and belief in the influence of external forces
Shares certain cognitive or perceptual distortions with schizophrenia, but maintains a more intact grasp on reality
Class B personality disorders
ANTISOCIAL PERSONALITY DISORDER
BORDERLINE PERSONALITY DISORDER
HISTRIONIC PERSONALITY DISORDER
NARCISSISTIC PERSONALITY DISORDER
ANTISOCIAL PERSONALITY DISORDER
Defined by a pervasive pattern of disregard for and violation of the rights of others.
Individuals with this disorder exhibit a lack of empathy and frequently engage in manipulative, impulsive actions.
Manifestations include aggressive, unremorseful behaviour, and consistent irresponsibility, which often results in a failure to obey laws and social norms.
Children diagnosed with conduct disorder are at increased risk of developing this as they grow older. Prevention can be through parenting programmes, as well as trialling group-based CBT.
BPD
Characterised by a recurring pattern of abrupt mood swings, unstable personal relationships, and self-image instability.
The propensity towards self-harm is commonly observed in these patients.
Relationships often fluctuate between extremes of idealisation and devaluation, a process known as “splitting”.
There is often an inability to control temper and manage affective responses appropriately.
Also known as emotionally unstable personality disorder (EUPD) there may be a history of previous trauma, including sexual abuse.
Management is with dialectical behavioural therapy (DBT).
Histronic personality disorder
Predominantly characterised by attention-seeking behaviours and excessive displays of emotion.
Individuals may display inappropriate sexual behaviours.
Their emotional expressions tend to be shallow, dramatic, and often perceived as exaggerated.
They often perceive relationships as being more intimate than they truly are, reflecting a distorted perception of interpersonal boundaries.
Narcissistic personality disorder
Characterised by a persistent pattern of grandiosity, a strong need for the admiration of others, and a marked lack of empathy.
Individuals with this disorder often display a sense of entitlement and will exploit others to fulfil their own desires.
Tendency to be arrogant and preoccupied with personal fantasies and desires, often at the cost of disregarding others’ feelings and needs.
Class C personality disorder
AVOIDANT PERSONALITY DISORDER
DEPENDENT PERSONALITY DISORDER
OBSESSIVE-COMPULSIVE PERSONALITY DISORDER
OCD
Characterised by an excessive preoccupation with orderliness, perfectionism, and control, often at the expense of flexibility, openness, and efficiency
Contrary to obsessive-compulsive disorder (OCD), obsessive-compulsive personality disorder (OCPD) is not associated with recurrent, intrusive thoughts or rituals
Indications may include strict adherence to routines, perfectionism to the point of dysfunction, and a persistent reluctance to delegate tasks to others
Symptoms are generally ego-syntonic, meaning the patient perceives them as rational and desirable, thereby differentiating OCPD from OCD, where symptoms are typically ego-dystonic and distressing to the individual.
Dependant personality disorder
Characterised by a pervasive and excessive need to be taken care of, leading to submissive and clinging behaviour
Individuals often lack self-confidence and initiative, relying excessively on others for decision-making
Patients may urgently seek new relationships as a source of care and support when existing ones end
Avoidant personality disorder
Characterised by intense feelings of social inadequacy, fear of rejection, and hypersensitivity to criticism
* Patients often self-impose isolation to avoid potential criticism, despite a strong desire for social acceptance and interaction
Bullimia nervosa
binge-eating episodes followed by compensatory behaviors, such as self-induced vomiting, laxative abuse, diuretics, fasting, or excessive exercise
epidemiology of Bulimia nervosa
Affects adolescents and young adults, with onset in late adolescence or early adulthood.
Prevalence: Lifetime 1-2% in women, less than 0.5% in men.
Female to male ratio: Approximately 10:1.
Relatively stable prevalence over the last few decades.
Psychological symptoms of bulimia
- Binge Eating: Loss of control, consuming large amounts of high-caloric food urgently.
- Purging: Induced vomiting, laxative or diuretic misuse, and excessive exercise.
- Body Image Distortion: Distorted perception despite maintaining normal or slightly above average weight.
Physical symptoms of bulimia
Dental Erosion: Resulting from recurrent self-induced vomiting.
Parotid Gland Swelling: Resulting from recurrent self-induced vomiting.
Russell’s Sign: Scarring on the back of the hand or knuckles from repeated self-induced vomiting.
Amenorrhea: Present in 50% despite normal weight.
Excessive Vomiting Complications: Boerhaave syndrome or Mallory-Weiss tear.