Skip to content

Psychiatry

Mental illness and behaviour: assessment, diagnosis, psychological treatment and psychiatric drugs.

41 topics published

Introduction

Psychiatry is the care of disorders of mood, thought, behaviour and perception. The diagnosis rests on a careful history, a structured mental state examination and an honest assessment of risk, because few conditions have a blood test or a scan that decides.

This section starts with assessment and treatment, then childhood disorders, psychosis and mood disorders, anxiety and trauma, substance use and eating disorders, and finally the emergencies, organic disorders and special groups.

Every topic uses the same layout: a short summary, what you should be able to do afterwards, the mechanism, the clinical picture, tests, treatment and the traps. Doses, thresholds and criteria are checked against named guidelines and shown with their source, because guidelines and countries sometimes differ.

How to study psychiatry

Learn psychiatry by the diagnostic criteria and the one question that separates look-alikes: how long, how severe, and what else could explain it, such as drugs, medical illness or delirium. Always ask about suicide and about harm to others.

Learn the high-yield drug facts: the first-line treatment for each disorder, the serious adverse effects, the monitoring and the emergencies such as neuroleptic malignant syndrome, serotonin syndrome, lithium toxicity and withdrawal states. The check-yourself questions at the end of each topic test them a few days later.

Link psychiatry to other chapters: delirium and dementia meet neurology, eating and substance disorders meet gastroenterology and emergency medicine, and perinatal conditions meet obstetrics.

Contents by part

The topics below are in teaching order. Each part builds on the one before it.

  1. Assessment and treatment. The psychiatric history and mental state examination, the main treatments and the law that governs them.
  2. Childhood and developmental disorders. Attention deficit, autism, intellectual disability, tics and the psychiatry of children and adolescents.
  3. Psychosis and mood disorders. Schizophrenia, depression, bipolar disorder, grief, and the postpartum psychiatric emergencies.
  4. Anxiety, trauma and related disorders. Generalised anxiety, panic and phobias, obsessive-compulsive disorder, post-traumatic stress and dissociation.
  5. Substance use and eating disorders. Alcohol, opioids, tobacco, cannabis and stimulants, and the eating disorders.
  6. Emergencies, organic and special groups. Delirium, dementia, catatonia, agitation, suicide risk, sleep, personality, older people and gender identity.

Topics