Psychiatry Flashcards
Acute stress disorder is defined as an acute stress reaction that occurs ……
in the first4 weeks after a person has been exposed to a traumatic event
Treatment of Acute stress disorder
- trauma-focused cognitive-behavioural therapy (CBT)is usually used first-line
- benzodiazepines ( sometimes used for acute symptoms e.g. agitation, sleep disturbance)
chronic alcohol consumption
- enhances ……..
- inhibits
- enhances GABA mediated inhibition in the CNS (similar to benzodiazepines)
- inhibits NMDA-type glutamate receptors
alcohol withdrawal
- decreased inhibitory……..
- increased …..
- decreased inhibitory GABA
- increased NMDA glutamate transmission)
In alcohol withdrawal
- tremor, sweating, tachycardia, anxiety start at … hours
- peak incidence of seizures at ….. hours
- peak incidence ofdelirium tremens is at ….. hours
- 6-12 hours
- at 36 hours
- at 48-72 hours
Management of alcohol withdrawal
- patients with Hx of complex withdrawals from alcohol should be admitted for monitoring until withdrawals stabilised
- first-line:long-acting benzodiazepinese.g.chlordiazepoxide or diazepam.
Treatment of alcohol withdrawal in patients with hepatic failure.
Lorazepam is preferable
Anorexia nervosa is associated with Physiological abnormalities
- hypercholesterolaemia
- hypercarotinaemia
- impaired glucose tolerance
- raised cortisol and growth hormone
- low T3, FSH, LH, oestrogens and testosterone
- hypokalaemia
Features of Anorexia nervosa
reduced body mass index
bradycardia
hypotension
enlarged salivary glands
Causes of aphonia
- recurrent laryngeal nerve palsy (e.g. Post-thyroidectomy)
- psychogenic aphonia
mental disorder where patients have a significantly distorted body image
Body dysmorphic disorder
mental disorder where the affected patient believes that they (or in some cases just a part of their body) is either dead or non-existent.
Cotard syndrome
Cotard syndrome is associated with
severe depression and psychotic disorders
form of paranoid delusion with an amorous quality. The patient, often a single woman, believes that a famous person is in love with her.
De Clerambault’s syndrome, also known as erotomania
condition where a patient has a fixed, false belief (delusion) that they are infested by ‘bugs’e.g. worms, parasites, mites, bacteria, fungus.
Delusional parasitosis
Depression in older people
- Features
- Treatment
- Features
- physical complaints (e.g. hypochondriasis)
- agitation
- insomnia - SSRIs first line
Factors suggesting diagnosis of depression over dementia
- short history, rapid onset
- biological symptoms e.g. weight loss,sleep disturbance
- patient worried about poor memory
- mini-mental test score: variable
- global memory loss (dementia characteristically causes recent memory loss)
Electroconvulsive therapy
The only absolute contraindications is
raised intracranial pressure.
Short-term side-effects of Electroconvulsive therapy
headache
nausea
short term memory impairment
memory loss of events prior to ECT
cardiac arrhythmia
Long-term side-effects of Electroconvulsive therapy
some patients report impaired memory
anterograde amnesia: inability to acquire new memories
retrograde amnesia
confabulation
Features of……?
Korsakoff’s syndrome
pathological jealousy where a person is convinced their partner is cheating on them without any real proof.
Othello’s syndrome
Features of Post-concussion syndrome
headache
fatigue
anxiety/depression
dizziness
transient paralysis of skeletal muscles which occurs when awakening from sleep or less often while falling asleep.
Sleep paralysis
Managment of Sleep paralysis
if troublesome clonazepam may be used
depression which occurs predominately around the winter months.
Seasonal affective disorder
Treatment of Seasonal affective disorder
- for mild depression, you would begin with psychological therapies and follow up with the patient in 2 weeks to ensure that there has been no deterioration.
- Following this an SSRI can be given if needed.
In seasonal affective disorder, you should not give the patient ……… as this can make the symptoms worse.
sleeping tablets
What is Somatisation disorder
multiple physical SYMPTOMSpresent for at least 2 years
patient refuses to accept reassurance or negative test results
Illness anxiety disorder (hypochondriasis )
persistent belief in the presence of an underlyingserious DISEASE, e.g. cancer
patient again refuses to accept reassurance or negative test results
fraudulent simulation or exaggeration of symptoms with the intention of financial or other gain
Malingering
Factitious disorder
(Munchausen’s syndrome)
the intentional production of physical or psychological symptoms
dissociation is a process of ‘separating off’ certain memories from normal consciousness
Dissociative disorder
Functional neurological disorder (conversion disorder)
typically involves loss of motor or sensory function
the patient doesn’t consciously feign the symptoms (factitious disorder) or seek material gain (malingering)
Examples of Serotonin and noradrenaline reuptake inhibitor (SNRI’s)
venlafaxine
duloxetine
Treatment of Post-traumatic stress disorder
- watchful waiting may be used for mild symptoms lasting less than 4 weeks
- trauma-focused cognitive behavioural therapy(CBT) or eye movement desensitisation and reprocessing (EMDR) therapy
- drug treatments should not be used as a routine first-line treatment for adults. If drug treatment is used then venlafaxine or SSRI.
eating disorder characterised by episodes of binge eating followed by intentional vomiting or other purgative behaviours such as the use of laxatives or diuretics or exercising.
Bulimia nervosa
Management of bulimia nervosa
- NICE recommend bulimia-nervosa-focused guided self-help for adults
- eating-disorder-focused cognitive behavioural therapy
- high-dose fluoxetine
Benzodiazepines enhance the effect of the inhibitory neurotransmitter gamma-aminobutyric acid (GABA) by increasing the ………
the frequencyof chloride channels
benzodiazipines increase the….1…..of chloride channels
barbiturates increase the…..2….of chloride channel opening
- frequency
- duration