Pseudoscience Flashcards
Give the DSM5 definition of major depressive disorder
Presence of >5 defining symptoms, during the same two-week period, where >1 of the symptoms is depressed mood or loss of interest or pleasure.
Plus four or more of the following:
* Disturbed sleep (decreased / increased compared to usual)
* Decreased / increased appetite / weight
* Fatigue / loss of energy
* Agitation / slowing down of movements and thoughts.
* Poor concentration / indecisiveness.
* Feelings of worthlessness or excessive / inappropriate guilt.
* Recurrent thoughts of death, recurrent suicidal ideas, or a suicide attempt or specific plan.
Give the NICE classification of depression severity according to the PHQ9
Less severe depression (subthreshold / mild): less than 16 on the PHQ-9 scale.
More severe depression (moderate / severe): 16 or more on the PHQ-9 scale.
List the items in PHQ9 scale
Nearly every day 3 points
More than half the days 2 points
Several days 1 point
Not at all 0 point
- Little interest or pleasure in doing things
- Feeling down, depressed, or hopeless
- Trouble falling or staying asleep, or sleeping too much
- Feeling tired or have little energy
- Poor appetite or overeating
- Feeling bad about yourself or that you are a failure or have let yourself or your family down
- Trouble concentrating on things, such as reading the newspaper or watching television
- Moving or speaking so slowly that other people could have noticed. Or the opposite - being so fidgety or restless that you have been moving around a lot more than usual
- Thoughts that you would be better off dead, or of hurting yourself
List the criteria for chronic depressive symptoms
Symptoms which continually meet the criteria for the diagnosis of a major depressive episode for >2 years
Have persistent subthreshold symptoms for >2 years
Have persistent low mood with or without concurrent episodes of major depression for >2 years
Give the first line treatment for depression
SSRI
When may electroconvulsive therapy be used in depression?
Depression with psychotic symptoms, suicidality, or catatonia
Later in treatment for people with refractory depression or intolerance to antidepressants
When should hospitalisation be considered in severe depression?
Significant suicidal ideation/intent + inadequate safeguards in family environment
Intent to hurt others
Unable to care for themselves/adhere to treatment
Psychotic symptoms
Uncontrolled agitation + impulsive behaviour
List the differences between mood disorders with psychotic features vs primary psychotic disorders
Mood disorder with psychotic features - Psychotic symptoms occur exclusively during mood episodes.
Schizophrenia - Mood symptoms, if present, are brief and not prominent.
List the features of Schizoaffective disorder
Mood episodes occur concurrent with symptoms of schizophrenia.
Lifetime history of delusions/hallucinations for 2 weeks outside of a mood episode.
Mood episodes are prominent and recur throughout illness.
List the SSRIs
Sertraline
Fluvoxamine
Fluoxetine
Paroxetine
Citalopram
Escitalopram
List contraindications for SSRI
Maniac phase of bipolar disorder
Poorly controlled epilepsy
Long QT syndrome
Concurrent with other drugs that cause QT prolongation
Severe hepatic impairment (sertraline)
List the adverse effects of SSRI
Sexual dysfunction
Headache
QT prolongation
List the SNRIs
Venlafaxine
Desvenlafaxine
Duloxetine
Milnacipran
Levomilnacipran
List the SNRI contraindications
Uncontrolled hypertension.
Hepatic impairment (duloxetine).
Severe renal impairment - creatinine clearance < 30 mL/min (duloxetine)
List the SNRI adverse effects
Hypertension
Headache
Diaphoresis
Bone resorption
List the TCA contraindications
Acute porphyria (lofepramine)
Arrhythmias, Heart block
During the immediate recovery period after MI
Severe hepatic/renal impairment (lofepramine)
During the manic phase of bipolar disorder
Taking a MAOi
List the TCA adverse effects
drowsiness (antagonism of histamine receptors)
antagonism of muscarinic receptors:
* dry mouth
* blurred vision
* constipation
* urinary retention
postural hypotension (antagonism of adrenergic receptors)
lengthening of QT interval
List the TCAs
Ami/Nor/Protriptyline
Doxepin
Clomi/Imi/Trimi/Desipramine
Maprotiline
Amoxapine
List the atypical antidepressants
Bupropion
Mirtazapine
Agomelatine
List the atypical antidepressant adverse effects
Bupropion- Seizures
Mirtazapine - Sedation, Weight gain
Agomelatine - hepatotoxicity
List the serotonin modulators
Nefazodone
Trazodone
Vilazodone
Vortioxetine
List the Serotonin Modulators adverse effects
Nefazodone - Hepatotoxicity (acute hepatitis with cholestasis and variable degrees of centrilobular necrosis)
Trazodone - Sedation, Priapism
Vilazodone - Diarrhoea
Vortioxetine - Nausea
List the Monoamine Oxidase Inhibitors (MAOIs)
Selegiline
Moclobemide
Tranylcypromine
Isocarboxazid
Phenelzine
List the MAOIs adverse effects
Potential for serotonin syndrome
Sexual dysfunction
List the TCA overdose effects
Fatal cardiovascular effects
* Tachycardia
* Postural hypotension
* Slowed cardiac conduction
Sedation
Coma
Seizures
List the Moclobemide (MAOI) overdose effects
Long QT syndrome
Hypertensive crisis
Serotonin and noradrenaline toxicity
Agitation, aggressiveness, and behavioural changes
List the Venlafaxine overdose effects
Vomiting
Sedation
Tachycardia
Hypertension
Seizures
List the Duloxetine overdose effects
Somnolence
Coma
Serotonin syndrome
Seizures
Vomiting
Tachycardia
List the triad in serotonin syndrome
Neuromuscular excitation
Autonomic effects
Altered mental status
List the clinical features in persistent depressive disorder (dysthymia)
Chronic depressed mood >2 years (1 year if children/adolescents)
No symptom-free period for >2 months
Presence of >2 of the following:
* Poor appetite / overeating
* Insomnia / hypersomnia
* Low energy / fatigue
* Low self-esteem
* Poor concentration / difficulty making decisions
* Feelings of hopelessness
List the drugs associated with serotonin toxicity
SSRI/SNRI/MAOI
Serotonin-releasing agents
* Fenfluramine
* Amphetamines
L-tryptophan - increase serotonin synthesis
Serotonin receptor agonists
Lysergic acid diethylamide (LSD)
Lithium
List the Hunter serotonin toxicity criteria
Serotonergic agent - increased dose, overdose, interaction
1. Spontaneous clonus
2. Inducible / Ocular clonus + Agitation OR Diaphoresis OR Hypertonia AND Hyperthermia
3. Tremor AND Hyperreflexia
If all null, not significant serotonin toxicity
List the serotonin syndrome severity grading
Mild toxicity
* Hyperreflexia
* Inducible clonus
* Tremor
* Myoclonic jerks
* Diaphoresis
* Headache
* Do not meet the HSTC
Moderate toxicity
* Anxiety and agitation
* Tachycardia
* Meets the HSTC, but no hyperthermia or hypertonia
Severe toxicity - Meet the HSTC and have hyperthermia and hypertonia
Give the characteristic for bipolar disorder
episodic depressed and elated moods and increased activity (hypomania / mania)
Define manic episode
Abnormally and persistently elevated, expansive, irritable mood lasting >7 days, with >3 additional symptoms:
* Abnormally elevated mood, extreme irritability, sometimes aggression.
* Increased energy/activity, restlessness, decreased need for sleep
* Pressure of speech/incomprehensible speech.
* Flight of ideas/racing thoughts.
* Distractibility, poor concentration.
* Increased libido, disinhibition, sexual indiscretions.
* Extravagant/impractical plans
* Psychotic symptoms: delusions (grandiose), hallucinations (voices).
And which:
* Is severe enough to cause marked impairment in social/occupational functioning/hospitalisation
* Includes psychotic features: delusions/hallucinations.
Define Hypomanic episode
Symptoms of mania that are:
* have lasted for at least 4 days
* not severe enough to cause marked impairment in social/occupational functioning/necessitate hospitalisation
* no psychotic features
Presentation
* Mild elevation of mood, irritability.
* Increased energy and activity, may lead to increased performance at work/socially.
* Feelings of well-being, physical mental efficiency.
* Increased sociability, talkativeness, over-familiarity.
Define Depressive episode
A period of at least 2 weeks during which there is either
* Depressed mood or
* Loss of interest or pleasure in nearly all activities (irritability in children and adolescents)
Accompanied by at least four additional symptoms:
* Disturbed sleep (decreased / increased compared to usual)
* Decreased / increased appetite / weight
* Fatigue / loss of energy
* Agitation / slowing down of movements and thoughts.
* Poor concentration / indecisiveness.
* Feelings of worthlessness or excessive / inappropriate guilt.
* Recurrent thoughts of death, recurrent suicidal ideas, or a suicide attempt or specific plan.
List the symptoms and signs that may help distinguish bipolar disorder from unipolar depression
Hypersomnia, lability, weight instability
Earlier age of onset (peak age 15-19 years), abrupt onset (possibly triggered by stressor).
More frequent episodes of shorter duration.
Comorbid substance misuse.
Higher postpartum risk.
Psychosis, psychomotor retardation, catatonia.
Lower likelihood of somatic symptoms.
Family history of bipolar disorder
State the diagnostic criteria for bipolar disorder in children and young people
Mania must be present.
Euphoria must be present on most days and for most of the time, for at least 7 days.
Irritability is not a core diagnostic criterion.
Define rapid-cycling bipolar disorder
At least four depressive, manic, hypomanic, or mixed episodes within a 12-month period.
Define Bipolar I disorder
> 1 manic episode with/without history of major depressive episodes.
Define Bipolar II disorder
One or more major depressive episodes and by at least one hypomanic episode, but no evidence of mania.
List the risk factors for bipolar disorder
Genetics - first-degree relatives
Environmental
* Early life stress, maternal death before a child reaches five years of age, childhood trauma, childhood abuse, emotional neglect/abuse.
* Toxoplasma gondii exposure.
* Cannabis use, cocaine exposure.
List the complications for bipolar disorder
Suicide / self-harm
Consequences of disinhibition and impaired social functioning
Associated psychological and physical illness
* Anxiety disorder, alcohol and other substance misuse disorders, personality disorders, ADHD
* Cardiovascular disease, hypertension
* Type 2 diabetes, dyslipidaemia, metabolic syndrome, obesity
* Chronic kidney disease
* COPD
Give the management for acute episode of mania and mixed episodes
First line: haloperidol, olanzapine, quetiapine, risperidone
If not effective: add lithium/sodium valproate
Give the management for acute episode of depressive episodes
Quetiapine
Fluoxetine + olanzapine
Olanzapine
Lamotrigine
Give the long term management plan for bipolar disorder
4 weeks after the acute episode has resolved:
Continue current treatment for mania
Start long-term treatment with lithium to prevent relapses
If lithium is not effective, add sodium valproate
If lithium poorly tolerated, use sodium valproate or olanzapine
Define Cyclothymia
Chronic disturbance of mood, consisting of periods of depression and hypomania, where the depressive symptoms do not meet the criteria for a depressive episode.
How is antipsychotic use monitored?
BMI - weekly for the first 6 weeks, then at 3 months, thereafter annually
FBC, U&E, eGFR, LFT, CK - annually
Blood lipids, HbA1c - 3 months after starting treatment, then every 12 months
Prolactin - 6 months after starting treatment, then every 12 months
ECG, blood pressure - during dose titration and change
List the adverse reactions related to clozapine
Neutropenia / agranulocytosis
Impairment of intestinal peristalsis (constipation, paralytic ileus)
List the contraindications for IM olanzapine
Unstable angina, Acute myocardial infarction.
Bradycardia.
Severe hypotension.
Sick sinus syndrome.
Recent heart surgery.
List the typical antipsychotics
(Dopamine receptor antagonists)
Phenothiazines
* trifluoperazine, prochlorperazine, perphenazine, acetophenazine, triflupromazine, mesoridazine
Haloperidol
Thioxanthenes
Loxapine
Molidone
Pimozide
List the atypical antipsychotics
(Serotonin-dopamine antagonists)
Risperidone
olanzapine
quetiapine
clozapine
List the adverse effects of antipsychotics
Extrapyramidal symptoms (typical antipsychotics)
* Dystonia and pseudoparkinsonism - alleviated by procyclidine (antimuscarinic)
* Akathisa (motor restlessness) - relieved by reducing the dose
* Tardive dyskinesia
* Oculogyric crisis
Weight gain (atypical antipsychotics)
* Greatest potential: clozapine, olanzapine
* Followed by: quetiapine, risperidone
Hyperprolactinaemia
* Galactorrhoea
* Amenorrhoea
* Gynaecomastia
* Hypogonadism
* Sexual dysfunction
* Increased risk of osteoporosis
Dyslipidemia
Impaired glucose tolerance
Sedation
Anticholinergic effects
* Dry mouth
* Blurred vision
* Urinary retention/Constipation
* Cutaneous flushing
Reduced seizure threshold
Diplopia
Cardiovascular
* Postural hypotension
* Hypertension
* Cardiomyopathy, myocarditis, cutaneous vasculitis
* QT interval prolongation
* Stroke risk
* Venous thromboembolism
Neuroleptic malignant syndrome
Pneumonia
Neutropenia
Abnormal LFT
* Hepatitis (transaminase 3x normal)
* Abnormal prothrombin time / albumin
Photosensitivity (chlorpromazine)
Drug Reaction with Eosinophilia and Systemic Symptoms (olanzapine)
* High fever
* Morbilliform skin rash eruption
* Haematological abnormalities
* Lymphadenopathy
* Inflammation of one or more internal organs.
List the symptoms for neuroleptic malignant syndrome
Within 72 hours of dopamine antagonist / agonist withdrawal:
Hyperthermia
Muscle rigidity (cardinal feature)
Altered mental status
Sympathetic nervous system lability
* BP elevation/fluctuation
* Sweating
* Urinary incontinence
Hypermetabolism
* 25% increase heart rate
* 50% increase respiratory rate
Give the key investigation in neuroleptic malignant syndrome
Serum creatine kinase (CK) levels
Give the management of neuroleptic malignant syndrome
Remove causative drug
Rehydration - IV fluids
Cooling
Sedation - oral/IV benzodiazepine
List two DPA agonists
bromocriptine
amantadine
Give the definition for generalised anxiety disorder
Chronic, excessive worry for > 6 months that causes distress/impairment, and is hard to control.
Give the DSM-5-TR criteria for generalised anxiety disorder
> 3 out of 6 in adults, 1 in children:
Muscle tension
Sleep disturbance
Fatigue
Restlessness/sense of feeling ‘on edge’
Irritability
Poor concentration
Other symptoms:
Muscle aches
Sweating, Dizziness
Shortness of breath, Chest pain
Nausea, diarrhoea
Gastrointestinal complaints
Give the childhood risk factors in generalised anxiety disorder
Maltreatment
Parental mental health problems / substance use
Family disruption (e.g., divorce)
Overly harsh/protective parenting style
Bullying
Give the management options for generalised anxiety disorder
First line options:
* Psychological therapy - cognitive behavioural therapy
* SSRI - sertraline
* Alternative - Mirtazapine (atypical antidepressant)
Second line: SNRIs (duloxetine, venlafaxine)
Third line:
* Pregabalin (anticonvulsant)
* Buspirone (non-benzodiazepine anxiolytic)
Give the DSM5-TR criteria for panic disorders
Recurrent, unexpected panic attacks
>1 of the attacks followed by a period of >1 month of one or both of:
* persistent concern/worry about additional panic attacks/consequences (heart attack)
* a significant maladaptive change in behaviour related to the attacks (avoidance)
Panic symptoms must not be attributable to substance-related effects, other medical conditions, or other psychiatric disorders
Give the symptoms for panic attacks
Sudden onset intense physical + cognitive symptoms of anxiety
Peak within minutes
The need to do something urgently (e.g. escape to a safe place)
List other symptoms in panic attacks
Nocturnal panic attack
Heightened sympathetic nervous system activity
* Palpitations
* Increased SBP
* Hyperventilation
* Sweating
* Flushing
Chest pain and discomfort
Dizziness
Tingling or numbing sensations in the hands, feet, and facial areas
Nausea and vomiting
List the symptoms for phobias
Intense anxiety/panic during exposure to specific objects/situations
Sleep disruption
Depression
Extreme anticipatory anxiety may co-occur
Coping behaviours
* Avoidance
* Safety seeking
* Substance misuse
Give the classification for PTSD
Dissociative subtype - symptoms of depersonalisation (experience of being an outside observer) or derealisation (experience of unreality, distance, distortion) are present.
Delayed expression - full diagnostic criteria are not met until at least 6 months after the stressor.
Give the DSM-5-TR criteria for PTSD
Symptoms should
* Cause significant distress/functional impairment
* Not be caused by medication, substance use, or other illness.
* Be persistent for >1 month.
The person must have:
Been exposed to actual/threatened death/serious injury/sexual violence in >1 of the following ways:
* Directly experiencing
* Witnessing
* Learning that the traumatic event occurred to a close family member/friend.
* Experiencing repeated/extreme exposure to aversive details of the traumatic event
Persistently re-experience >1 of the following intrusive symptoms:
* Recurrent, involuntary, intrusive memories.
* Recurrent traumatic nightmares
* Dissociative reactions (e.g. flashbacks) in which the person feels or acts as if the traumatic event is recurring.
* Intense or prolonged distress after exposure to traumatic reminders.
* Marked physiologic reactivity after exposure to trauma-related stimuli.
Persistently avoid stimuli associated with the traumatic event
Experience >2 negative changes in mood or thoughts that began or worsened after the traumatic event:
* Unable to recall key features of the traumatic event.
* Persistent (usually distorted) negative beliefs and expectations about themselves or the world.
* Persistent distorted blame of self or others for causing the traumatic event or for resulting consequences.
* Persistent negative emotional state (e.g. fear, horror, anger, guilt or shame).
* Markedly diminished interest in (pre-traumatic) significant activities.
* Feelings of detachment or estrangement from others.
* Persistent inability to experience positive emotions (happiness, satisfaction, love).
> 2 trauma-related alterations in arousal and reactivity that began/worsened after the traumatic event:
* Irritable/aggressive behaviour (with little or no provocation).
* Self-destructive or reckless behaviour.
* Hypervigilance.
* Exaggerated startle response.
* Problems in concentration.
* Sleep disturbance.
Give the severity grading in PTSD
Mild
Distress caused by the symptoms is manageable
Social and occupational functioning are not significantly impaired.
Moderate
Distress and impact on functioning lie somewhere between mild and severe
Not considered to be a significant risk of suicide, harm to self, or harm to others.
Severe
Distress caused by the symptoms is felt to be unmanageable
Significant impairment in social and/or occupational functioning
Considered to be a significant risk of suicide, harm to self, or harm to others.
Give the managements in PTSD
Psychological therapies
First line: Trauma-focused cognitive behavioural therapy
* Exposure therapy - the person confronts traumatic memories and is repeatedly exposed to situations which they have been avoiding that elicit fear.
* Trauma-focused cognitive therapy - identifies and modifies misrepresentations of the trauma and its aftermath that lead the person to overestimate the threat.
Eye movement desensitisation and reprocessing
Antidepressants:
* Venlafaxine (SNRI)
* SSRI
List the symptoms of PTSD in adults
Re-experiencing the event
Avoidance of external reminders/thoughts/memories of the event.
Hyperarousal (hypervigilance, anger, irritability).
Negative alterations in mood and thinking.
Negative self-perception
Emotional numbing.
Emotional dysregulation.
Dissociation.
Interpersonal difficulties/problems in relationships
List the symptoms of PTSD in children
Dreams of the trauma, nightmares.
Re-living the trauma in their play.
Losing interest in things that they previously enjoyed.
Expressing the belief not live long enough to grow up.
Stomach aches and headaches.
List the mental health complications for PTSD
Depression
Anxiety disorders
Substance use disorders
Somatic symptom disorder
Psychoses
Suicidal ideation
In children
* ADHD
* Oppositional defiant disorder
* Conduct disorder
List the 5 stages of grief
Denial
Depression
Bargaining
Aggression
Acceptance
List the positive and negative symptoms in psychosis
Positive symptoms:
* Hallucinations (perceptions in the absence of stimulus)
* Delusions (fixed or falsely-held beliefs)
* Disorganised behaviour, speech, thought disturbance
Negative symptoms:
* Emotional blunting.
* Reduced speech.
* Loss of motivation.
* Self-neglect.
* Social withdrawal
List the medical causes of psychosis
Central nervous system
* Trauma
* Space-occupying lesions
* Infection
* Stroke
* Epilepsy
* Cerebral hypoxia
Metabolic disturbances
* Urea cycle disorders
* Acute intermittent porphyria
* Wilson disease
* Renal / liver failure
* Hypoglycemia
* Na+/Ca2+/Mg2+ disturbances
Systemic
* SLE
* Thyroiditis
Give the ICD10 criteria for schizophrenia
Symptoms present most of the time for >1 month
One or more of the following features:
Hallucinatory voices
Thought echo, thought insertion/withdrawal, thought broadcasting.
Delusions
Persistent delusions of other kinds that are culturally inappropriate and completely impossible
Or any two of the following criteria:
Persistent hallucinations in any form accompanied by
* fleeting or half-formed delusions without clear affective content
* persistent overvalued ideas (similar to preoccupations)
* when occurring every day for weeks or months on end
Breaks or interpolations in the train of thought, resulting in incoherence or irrelevant speech, or neologisms (invented words).
Catatonic behaviour
* Excitement, posturing, or waxy flexibility
* Negativism
* Mutism
* Stupor
Negative symptoms
A significant and consistent change in the overall quality of some aspects of personal behaviour
List the features of prodromal period for psychosis
Transient, low-intensity psychotic symptoms - intermittent, self-limiting episodes, typically lasting less than a week
* hallucinations/unusual perceptual experiences
* unusual thoughts
* unusual or uncharacteristic behaviour
Reduced interest in daily activities
* poor personal hygiene
* reduced performance at school or work
Problems with mood, sleep, memory, concentration, communication, affect, and motivation.
Anxiety, irritability, or depressive features.
Incoherent or illogical speech - thought disturbance.
List the risk factors for schizophrenia
Stressful life events (bereavement, job loss, eviction, relationship breakdown)
Childhood adversity (abuse, bullying, parental loss / separation)
Family heritage
Migration
Urban living
Cannabis
Substance use
* amphetamines, cocaine, ketamine, LSD
* inhaled substances eg. toluene and certain types of glue
High-dose corticosteroid
Early life factors
* exposures in utero to medication
* maternal stress
* nutritional deficiency
* Infection
* intrauterine growth restriction
* birth and postnatal trauma
Paternal age > 40 years and parental age < 20 years
Exposure to Toxoplasma gondii
List the complications for schizophrenia
Increased risks of
* Suicide
* Cardiovascular disease
* T2DM
* Smoking-related illness
* Cancer eg. breast
Social exclusion
Substance misuse
Give the management for acute psychosis
First line = de-escalation
Sedation
* IM lorazepam
* IM haloperidol + promethazine
List the antipsychotic treatment options
Aripiprazole, amisulpride, haloperidol, lurasidone, olanzapine, risperidone
Give the DSM5-TR criteria for schizoaffective disorder
An uninterrupted period of illness, during which there is a major mood episode (major depressive or manic) concurrent with a schizophrenia episode characterised by two or more of the following symptoms present for a considerable part of a 1-month period (at least one of these must be delusions, hallucinations, or disorganised speech):
* Delusions
* Hallucinations
* Disorganised speech (e.g., frequent derailment or incoherence)
* Grossly disorganised or catatonic behaviour
* Negative symptoms (i.e., diminished emotional expression or avolition).
During this time, there should be a period of at least 2 weeks with delusions and hallucinations, in the absence of a major mood episode (depressive or manic) during the lifetime duration of illness.
Symptoms that meet criteria for a major mood episode are present for the majority of the total duration of the active and residual period of illness.
Other possible etiologies or general medical conditions have been ruled out.
List the management options for schizoaffective disorder
Atypical antipsychotics
* Paliperidone
* Olanzapine
* Ziprasidone
Give the DMS5 TR criteria for brief psychotic disorder
> 1 psychotic symptoms, where >1 must be delusions, hallucinations, or disorganised speech
Episodes lasts for >1 day, but <1 month, return to premorbid level of functioning.
No better accounted for by other conditions.