Psychiatry Flashcards
What are the 4 Ps used in psychiatry?
Predisposing
Precipitating
Prolonging
Protective
What is measured in a Mental State examination?
- Appearance and Behaviour
- Speech
- Thought and Delusions
- Perceptions and Hallucinations
- Cognition
- Insight
Describe what is seen in Tardive Dyskinesia?
Chronic condition associated with long time anti-psychotic use.
You will see tongue protrusion, rolling of tongue and sucking and smacking movements
What does the following MH Acts and Laws say?
Section 2 Section 3 Section 4 Section 5(2) Section 5(4)
Section 2: you need to come into hospital for an assessment and diagnosis. 28 days
Section 3: treatment and 6 months
Section 4: emergency for any patients up to 72 hours
Section 5(2): emergency for INPATIENTS up to 72 hours
Section 5(4): emergency for inpatients by a nurse for max 6 hours
What does the following sections mean?
Section 136
Section 137
136: detention from public place ie not their home for up to 72 hours
137: police can force entry into someone’s house.
What two hormones/neurotransmitters does alcohol increase ?
GABA and dopamine
What are 5 RF that increase the risk of suicide?
Male Age Previous suicide attempts Substance abuse Depression Lack of social support Single Chronic disease
How long do you have to have seasonal affective disorder to get a diagnosis?
Need to have had it for at least two years
What is the pathophysiology behind seasonal affective disorder?
Happens in the winter. related to an affected circadian rhythm.
You get more nocturnal melatonin production
What are 3 presentations of seasonal affective disorder?
- Increased eating
- Increased sleeping
- Symptoms of depression
What is the management of seasonal affective disorder?
- You need to give Light therapy
- CBT
- SSRI
How does Lithium work as a medication?
It inhibits cAMP production. This means that you get increased monoamines supplies
How do the anti psychotics (1st gen and 2nd gen) work?
- They block the post synaptic D2 receptor
How do anti epileptics work like sodium valproate?
They inhibit the sodium channels. Stabilising the membrane potentials and reducing neuronal excitability
How do benzodiazepines work?
They work by enhancing the binding of GABA to the GABA receptor
How does normal pressure hydrocephalus present?
Ataxia
Incontience
Dementia
What are two causes of normal pressure hydrocephalus?
- SAH
2. Trauma
What is the management of a patient who has normal pressure hydrocephalus?
- Shunt b
Where in the brain does Korsakoff psychosis effect?
Mammillary Bodies
What is Cotard’s Syndrome?
Nihilistic Beliefs that have associations of delusions of poverty
What is Diogene’s Syndrome?
When a previous very eccentric individual becomes increasingly isolated and neglect theirselves.
What are some of the complications of doing ECT ?
Memory Loss
Muscle Pain
Confusion
Nausea and Vomiting
How would you describe what happens in an acute dystonic reaction?
How do you treat it?
Acute Dystonia?
This is when you get head and neck involvement. You get involuntary muscle contractions. You can get eye involvement. You get tongue protrusion, grimacing etc.
Treatment is the anti cholinergic IM Procyclidine
What is the presentation of neuroleptic malignant syndrome?
How do you treat this?
You get
Muscle rigidity
Hyperthermia
Hypotension and incontience and altered mental state
Mx: cool the patient, Benzos, IV fluids and muscle relaxants bromocriptine
How does serotonin syndrome present?
Hyper reflexia
Impaired consciousness-> coma
Rigidity, tremor and ataxia
Hyperthermia, tachycardia and dilation of pupils.
What are the 3 core symptoms of depression?
Anhedonia
Depressed mood for more than 2 weeks
Affect on sleep / poor fatigue