Mental Health Flashcards

1
Q

Define generalised anxiety disorder:

A

Generalized Anxiety Disorder (GAD) constitutes a chronic and pervasive condition characterized by excessive, uncontrollable worry extending across various life domains.

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2
Q

What is the ICD-11 criteria for anxiety disorder?

A

Excessive worry and apprehension.
Difficulty controlling worry.
Associated symptoms: Restlessness, muscle tension, fatigue.
Duration: At least 6 months.

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3
Q

What is the DSM-V criteria for anxiety disorder?

A

Excessive anxiety and worry about various domains.
Difficulty controlling worry.
Associated symptoms: Restlessness, muscle tension, fatigue, irritability.
Duration: At least 6 months.

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4
Q

What is the epidemiology of generalised anxiety disorder?

A

Predominantly affects females.
Affects up to 10% of the general population.
Commonly comorbid with depression, substance misuse, and personality disorder.
An onset beyond the age of 35-40 years is more likely indicative of depressive disorder or organic disease.
Associated risk factors include lower socioeconomic status, unemployment, divorce, renting rather than owning a home, lack of educational qualifications, and urban living.

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5
Q

What are the clinical features of generalised anxiety disorder?

A

Psychological: Fears, worries, poor concentration, irritability, depersonalization, derealization, insomnia, night terrors
Motor symptoms: Restlessness, fidgeting, a feeling of being on edge
Neuromuscular: Tremor, tension headache, muscle ache, dizziness, tinnitus
Gastrointestinal: Dry mouth, dysphagia, nausea, indigestion, “butterflies” in the stomach, flatulence, frequent or loose bowel movements
Cardiovascular: Chest discomfort, palpitations
Respiratory: Dyspnea, tight/constricted chest
Genitourinary: Urinary frequency, erectile dysfunction, amenorrhea

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6
Q

What is first line management for generalised anxiety disorder?

A

low-intensity psychological interventions:
Individual non-facilitated self-help - written/electronic materials that the patient can work through over a period of around 6 weeks, with occasional but minimal therapist contact.
Individual guided self-help - written/electronic materials that a patient works through with 5–7 weekly or fortnightly face-to-face or telephone sessions (30 minutes each) with a trained practitioner.
Psychoeducational groups - interactive CBT-guided group sessions consisting of 6 weekly 2-hour sessions

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7
Q

What is second line for generalised anxiety disorder?

A

Second line: for people with GAD and marked functional impairment, or with GAD that has not improved following the above:

High-intensity psychological intervention such as CBT or applied relaxation

Medical management - SSRIs are preferred i.e. sertraline, and if one does not work an alternative can be trialled e.g. escitalopram, paroxetine, or an SNRI (venlafaxine or duloxetine) can be used

In the first week of treatment there may be increased anxiety, agitation, and sleeping problems, and in people aged under 30 years that in a minority of people aged under 30 years, SSRIs and SNRIs are associated with an increased risk of suicidal thinking and self-harm.
Patients under 30 should therefore have a follow-up appointment within 1 week to monitor progress.

Symptomatic management with propranolol for palpitations can also be used

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8
Q

What are the three steps to generalised anxiety disorder management?

A
  • Step 1- education & monitoring
  • Step 2- low intensity psychological intervention
  • Step 3- CBT or pharmacology
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9
Q

What is ICD-11 criteria for depression?

A

Depressive Episode: Depressed mood, loss of interest (anhedonia), and reduced energy (fatigue) persisting for at least two weeks.

This consists of the presence of at least five out of a possible eight defining symptoms, during the same two-week period, where at least one of the symptoms is depressed mood or loss of interest or pleasure

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10
Q

What is the DSM-V criteria for depression?

A

Major Depressive Disorder (MDD): Presence of a major depressive episode lasting at least two weeks, with specific criteria regarding mood, cognitive, and physical symptoms.
Persistent Depressive Disorder (Dysthymia): A chronic form of depression lasting for at least two years.

This consists of the presence of at least five out of a possible eight defining symptoms, during the same two-week period, where at least one of the symptoms is depressed mood or loss of interest or pleasure

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11
Q

What are the different severities to depression?

A

Mild: Few, if any, symptoms in excess of those required to make the diagnosis (associated symptoms, see below), and the symptoms result in minor functional impairment.
Moderate: Symptoms or functional impairment between “mild” and “severe.”
Severe: The number of symptoms, intensity, and impairment are all greatly increased.

To diagnose mild depression according to ICD-10, look for a minimum of two key symptoms and additional symptoms for a minimum duration of two weeks.

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12
Q

What are the clinical features of depression?

A

Depressed mood or irritability for most of the day, indicated by either subjective report (feels sad or empty) or observation by others (appears tearful).
Anhedonia: Decreased interest or pleasure in most activities, most of the day.
Significant weight change (5%) or change in appetite.
Sleep alterations: Insomnia or hypersomnia.
Activity changes: Psychomotor agitation or retardation.
Fatigue or loss of energy.
Guilt or feelings of worthlessness: Excessive or inappropriate guilt or feelings of worthlessness.
Cognitive issues: Diminished ability to think or concentrate, or increased indecisiveness.
Suicidality: Thoughts of death or suicide, or formulation of a suicide plan.

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13
Q

What are some additional features to depression?

A

Psychotic Features: Delusions (e.g. nihilistic delusions, Cotard’s syndrome) and hallucinations.
Depressive Stupor: Profound immobility, mutism, and refusal to eat or drink, sometimes necessitating electroconvulsive therapy (ECT).

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14
Q

What are the investigations for depressions?

A

Standard investigations for depression may include Full Blood Count (FBC), Thyroid Function Test (TFT), Urea and Electrolytes (U&E), Liver Function Test (LFT), Glucose, B12/folate levels, cortisol levels, toxicology screen, and imaging of the Central Nervous System (CNS).
These help rule out organic causes (listed above) such as endocrine disorders (e.g. thyroid disorders).
There are several questionnaires that can also be used to help assess depressive symptoms, such as the Hospital Anxiety and Depression (HAD) Scale and Patient Health Questionnaire (PHQ-9).

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15
Q

What are the three steps for treatment for mild-to-moderate depression?

A

1st line = Low-intensity psychological interventions (individual self-help, computerised CBT).
2nd line = High-intensity psychological interventions (individual CBT, interpersonal therapy)
3rd line = Consider antidepressants

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16
Q

What is the treatment for mild depression unresponsive to treatment and moderate-to-severe depression:

A

1st line = High-intensity psychological interventions + antidepressants (1st line = SSRI)
2nd line (Treatment-resistant depression) – switch antidepressants and then use adjuncts

17
Q

What is the treatment for severe depression and poor oral intake/pyschosis/ stupor?

A

1st line = ECT
Although the exact mechanism remains elusive, it is thought that the induced seizure, rather than the ECT procedure itself, has therapeutic benefits. Short-term side effects of ECT include headache, muscle aches, nausea, temporary memory loss, and confusion, while long-term side effects can include persistent memory loss. Due to the induced seizure, there is a risk of oral damage, and due to the general anaesthetic, a small risk of death.

18
Q

What is the treatment for recurrent depression?

A

Treated with antidepressant + lithium

19
Q

To reduce the risk of depression relapse what does NICE recommend for antidepressants?

A

To reduce the risk of depression relapse, NICE recommends continuing antidepressant treatment for at least six months after symptom improvement.

20
Q

Opiate overdose features?

A
  • Bilateral miosis (pinpoint pupils)
  • Resp depression (bradypnoea)
  • Altered mental status
  • Constipation
  • Needle track marks
  • Rhinorrhoea
21
Q

Paracetamol overdose clinical features?

A
  • nausea & vomiting
  • RUQ pain
  • jaundice (may signify acute liver failure)
  • hepatomegaly
  • altered conscious level
22
Q

Aspirin overdose clinical features?

A
  • tinnitus
  • nausea and vomiting
  • lethargy
  • tachypnoea (hyperventilation)
  • diaphoresis- excessive sweating
  • hyperthermia
  • agitation
  • seizures
  • coma
23
Q

Opiate overdose management?

A
  • Airway management & oxygen
  • IV naloxone
24
Q

paracetamol overdose management?

A
  • If <1 hour after ingestion and not staggered overdose- activated charcoal
  • If ingestion <4 hours ago- wait until 4 hours to take a level then treat with N-acetylcysteine based on level
  • If ingestion 4-15 hours ago- take immediate level and treat based on level
  • If staggered overdose (over >1 hour time period) or ingestion >15 hours ago/timing uncertainty then IV N-acetylcysteine
  • When would we give a liver transplant?If pH <7.3 more than 24 hours after ingestion
25
Q

What is the definition of delirium?

A

Delirium is an acute and fluctuating disturbance in attention and cognition, often accompanied by a change in consciousness

26
Q

What are the three subtypes of delirium?

A

Hyperactive Delirium: Marked by increased psychomotor activity, restlessness, agitation, and hallucinations.
Hypoactive Delirium: Characterised by lethargy, reduced responsiveness, and withdrawal.
Mixed Delirium: Combines features of both hyperactive and hypoactive delirium.

27
Q

What are the causes of delirium? (DELIRIUMS)

A

D: Drugs and Alcohol (Anti-cholinergics, opiates, anti-convulsants, recreational)
E: Eyes, ears and emotional disturbances
L: Low Output state (Myocardial Infarction, Acute Respiratory Distress Syndrome, Pulmonary Embolism, Congestive Heart Failure, Chronic Obstructive Pulmonary Disease)
I: Infection
R: Retention (of urine or stool)
I: Ictal (related to seizure activity)
U: Under-hydration/Under-nutrition
M: Metabolic disorders (Electrolyte imbalance, thyroid disorders, Wernicke’s encephalopathy)
(S): Subdural hematoma, Sleep deprivation

28
Q

What are the signs and symptoms of delirium?

A

Disorientation
Hallucinations - visual or auditory
Inattention
Memory problems
Change in mood or personality. Sundowning is agitation and confusion worsening in the late afternoon or evening.
Disturbed sleep
Patients may be hypoactive (sedated) or hyperactive (very agitated), and these presentations can fluctuate over time. Hyperactive delirium is easily seen due to the presentation, while hypoactive delirium can be easily missed as patients may appear more withdrawn.

29
Q

What are the investigations for delirium?

A

4AT and CAM are commonly used tools for delirium assessment.
Initial investigations should include a comprehensive physical examination and infection screen. Additional investigations should be guided by clinical suspicion based on the patient’s history and physical examination. These may include:
Bedside - bladder scan, review medications, ECG (arrhythmias, ischaemic changes that could cause hypoperfusion) urine MC&S - you should not perform urine dipstick if >65 as they are less sensitive in this age group.
Bloods: FBC, urea and electrolyes, liver function tests, thyroid function tests, and blood cultures.
Imaging: chest X-ray, or ultrasound of the abdomen. Neuroimaging with CT or MRI head is reserved for those without a clear identifiable cause.

30
Q

What is the management for delirium?

A

Management of delirium primarily focuses on treating the underlying cause. Non-pharmacological strategies should be the first line, which include:
Providing an environment with good lighting
Maintaining a regular sleep-wake cycle
Regular orientation and reassurance
Ensuring the patient’s glasses and hearing aids are used if needed
For patients who are extremely agitated and potentially a danger to themselves or others, pharmacological interventions such as small doses of haloperidol or lorazepam. Olanzapine may also be considered however, these should be used with caution, especially in the elderly, due to the risk of side effects.

Haloperidol is first line

31
Q

Aspirin overdose signs:

A

aspirin overdoses causes tinnitus and Venous blood gas classically shows respiratory alkalosis initially due to hyperventilation, before progressing to a metabolic acidosis

32
Q

Aspirin overdose management:

A

Decontamination:
Administer activated charcoal (1 g/kg, max 50 g) within 1–2 hours of ingestion.
Avoid gastric lavage unless massive ingestion with airway protection.
Monitor:
Serum salicylate levels, ABG, electrolytes, glucose, renal function.
Look for signs of acid-base disturbances (respiratory alkalosis + metabolic acidosis).
Enhanced Elimination:
IV sodium bicarbonate to alkalinize urine (target urine pH 7.5–8.0).
Correct hypokalemia to maintain alkalinization.

33
Q

Treatment for methanol toxicity

A

Methanol toxicity is treated with fomepizole which works by inhibiting alcohol dehydrogenase and preventing the conversion of methanol to toxic metabolites.