Week 8 Flashcards
List some Anxiety diagnosis’
What is the most common mental health condition?
Anxiety
What % of people suffer with anxiety?
7.3 ~ 1:14
What is the ratio of men to women who suffer with anxiety?
1:2
Define Anxiety
Characterised by excessive fear and anxiety
What is the current theory of what causes anxiety?
How does Anxiety effect NT levels?
- Serotonergic - Low
- Noradrenergic - High
- GABA system - Dysregulated
- Cortico-steroid regulation (leads to hippocampal reduction)
What are some associated conditions of anxiety?
- Depression / Low mood
- Obsessive compulsive disorder (OCD)
- PTSD
- Stress
- Addiction
- Insomnia
What are some risk factors for Anxiety?
What are some symptoms of Anxiety?
- Agitation
- Trembling
- Restless
- Emotional distress
- Avoidance
- Low mood
- Nothing
Describe the Generalised Anxiety Depression score
What other conditions is Chronic Anxiety related to?
HT
CV disease
Dementia
What are some non-pharmacological options for the treatment of Anxiety
What challenges are there to helping an individual with Anxiety?
What are some of the negative effects of caffeine?
What may patients be anxious about before surgery?
What are some post-operative outcomes for individual who experience high anxiety pre-operatively?
Less likely to understand informaion presented to them
Less likely to adhere to exercises designed to help with recovery
What are some effective approches to help patients who are anxious about a medical procedure?
Define Anxiolysis
Minimal sedation
A drug induced state during which the patient responds normally to verbal comands. Cognitive function and coordination may be impaired. Ventilatory and CV functions are unaffected
What drug is used to treat seizures lasting longer than 5 mins?
IV Lorazepam
(if IV not accessable, consider rectal diazepam)
What drug is used for Anticipatory Care Plan for End Of Life care?
IV Midazolam
What drug is used to treat Alcohol withdrawal?
Chlordiazepoxide
What are the 3 main classifications of Anxiety disorders?
What are the 6 main classes of drugs used to treat Anxiety?
What are some antidepressants that may be used to treat Anxiety?
What are some Benzodiazepines that may be used to treat Anxiety?
Are Benzodiazepines used for the management of Mild Actute, Severe Acute, Mild Chronic or Sever Chronic Anxiety?
Severe Acute
Describe the pharmacokinetics of Benzodiazepines
What are the 5 main clinical effects of Benzodiazepines?
Describe Benzodiazepines action on GABAa Receptors
What are some antiepileptics that may be used to treat Anxiety?
What is a 5-HT 1A receptor agonist that may be used to treat General Anxiety Disorder?
What are some Atypical antipsychotics that may be used to treat Anxiety?
What are some Beta-Adrenoceptor antagonists that may be used to treat Anxiety?
Describe the bodies tolerance to Benzodiazepines?
When has someone developed dependence on drugs used for treatment of anxiety?
3 of the 6 criteria in last 12 months
What are some symptoms of withdrawals from anxiety medication?
What are anti anxiety drugs at risk of being used for
Drug of misuse / abuse
What drug(s) would be prescribed to treat insomnia?
Short acting Benzo or Z-drug
(lowest effective dose for shortest time)
How could one establish a healthy Sleep hygiene?
Name and describe Z-drugs
What is the therapeutic role of Melatonin?
What are the 3 catagories of harm?
What are the 3 classes of drugs?
What are the 3 catagories of CNS stimulants?
Name an example of a Convulsant and Respiratory Stimulant and its function?
What catagory of drugs are Hallucinogens
AND
what is their function?
Psychotomimetic drugs
What are the pharmacological effects of Hallucinogens?
How quickly do we develop Tolerance to Hallucinogens
AND
What are the withdrawl symptoms?
Tolerance develops quickly
No physical withdrawals
Some psychological effects (flashbacks, psychosis)
What are some risks of taking Hallucinogens?
What are 2 examples of Dissociative anaesthetics
AND
What receptor do they antagonise?
Both are NMDA receptor antagonists
How quickly do we develop Tolerance to Dissociative anaesthetics
AND
What are the withdrawl symptoms?
Develop tolerance rapidly over regular repeated doses
Physical and psychological dependance, withdrawal syndromes with PCP
What are some risks of taking Dissociative anaesthetics?
What type of drug is Cannabis?
Psychotomimetics
What are 3 examples of Psychomotor Stimulants?
- Amphetamine
- Dextroamphetamine
- Methylamphetamine
What are the main effects of Psychomotor Stimulants?
What are some of the behavioural effects of Amphetamine?
What is the MoA of Amphetamines?
What are the two 5-HT pathways in the brain?
What are the 3 Dopamine pathways in the brain?
What are the 2 Noradrenaline pathways in the brain?
How quickly do we develop Tolerance to Amphetamines
AND
How dependant do we become?
Develop rapid tolerance to euphoric and anorexic effects, slowly for others
Moderate dependance due to euphoria
What is, and how does one get Amphetamine psychosis?
What are some side effects of taking Amphetamines?
What are some examples of clinical uses of the Amphetamine drugs:
Lisdexamfetamine mesylate
Phentermine and Diethylpropion
What type of drug are Khat and Nicotine examples of?
Psychomotor Stimulants
What are the effects of Cocaine?
Potent inhibitor of catecholamine reuptake into nerve terminals
How quickly do we develop Tolerance to Cocaine
AND
How dependant do we become?
Tolerance occurs rapidly
Mild physical dependance
Strong psychological dependace
What are the acute risks of Cocaine?
What are the chronic risks of Cocaine?
What are the 2 main Methylxanthines?
What are the main psychological effects of Methylxanthines?
Reduce fatigue
&
Improve mental performance w/o euphoria
What is the MoA of Methylxanthines?
How quickly do we develop Tolerance to Methylxanthines
AND
What are the withdrawl symptoms?
Develop small amounts of tolerance and habituation
What are Eugeroics?
What are the 3 main Eugeroics?
What is PTSD
AND
What is it associated with?
What is PTSD often related to historically speaking?
War (shellshock)
What is the estimated lifetime prevalence of PTSD?
6.8%
What are the most common causes of PTSD for men and for women?
Men - Combat
Women - Sexual molestation
What % of people who experience trauma will develop PTSD?
25 - 30%
What are some challenges with PTSD?
What are some examples of signs of PTSD / CPTSD?
Bottom 3 needed for Complex PTSD
Roughly describe Complex PTSD
What is meant my avoidance in PTSD?
Avoidance of thoughts, feelings, people, places, and activities related to event that caused PTSD
What are 5 issues of Hyperarousal in PTSD?
What are some risk factors for PTSD?
- Exposure to traumatic event
- Certain professions (e.g. A&E, police, prison, fire services ect.)
- Female sex
- Younger age
- Severity of incident (greater threat to life)
- Multiple life stressors
- History of mental health disorders
How may the characteristics of the event effect the PTSD likelyhood?
What are some other psychological factors that may impact PTSD?
- Personal impact of the event
- Extent of percieved control over future threats
- How one is preped to deal with stressor
- One’s beliefs and assumptions about trauma
What are the 2 main treatment options for PTSD?
Psychological prevention and treatment
&
Pharmacological treatment
Why was psychological debriefing ineffective in preventing PTSD
Increased risk of PTSD
- secondary traumatisation
- medicalising normal distress
- may prevent potentially protective responses of denial and distancing
What are some interventions for individuals with PTSD?
What niche form of treatment may be used for non-combat related PTSD
EMDR
(eye movement desensitisation and reprocessing)
What are some pharmacological treatments for PTSD?
Describe General Anaesthesia
Give 4 examples of commonly used general anaesthetics drugs
IV induction agents which will induce loss of conciousness in one arm brain circulation time (20-30s)
Name some commonly used General anaesthetic agents delivered via inhalation (gas / vapour)
May be used for children or to maintain anaesthesia
What is Entonox, and what are its functions?
50:50 - NO:O2
Analgesic
Labour
Trauma
Describe MAC (minimum alveolar conc)
Higher MAC -> Lower Potency
The more soluble a drug is in oil (lipophilic) the more potent its effects are
What is the relation between lipid soluability and potency in inhalation analgaesic agents?
More lipophilic -> More Potent
More Blood soluble -> Slower onset
What receptors do general anaesthetics mainly act on?
GABAa receptors
Describe the MoA of General Anaesthetic upon GABAa receptors
Where do general anaesthetics act in the brain?
Describe Special K and some associated issues
What is an issue with NO?
Misuse
What is the relation between blood solubility of a drug and its rate of clearance?
Lower blood solubility -> Faster clearance
What’s the difference between fat and lean tissues in euilibrium of inhalation anaesthetics?
What is an issue with the use of Isoflurane (anaesthetic)
Causes cough and laryngospasm
What is an issue with the use of Desflurane (anaesthetic)?
Patients wake up very quickly
What are the Therapeutic Disadvantages of Inhalation anaethetics?
Desflurane
- Must be delivered using a special vaporiser
Nitrous Oxide
- Incomplete anaesthesia
- No muscle relaxation
- Must be used with other anaethetics for surgical anaesthesia
Sevoflurane
- Potential renal toxicity at low flows
What are the Therapeutic Advantages of Inhalation anaethetics?
Nitrous Oxide
- Good analgesia
- Rapid onset/emergence
- Safe, nonirritating
Isoflurane
- Good muscle relaxation
- Rapid emergence
- Stability of cardiac output
- Does not raise intracranial pressure
- No sensitisation of heart to epinephrine
Sevoflurane
- Bronchial smooth muscle relaxation good for patients with asthma
- Rapid onset/emergence
- Nonirritating; useful in children
What are the Therapeutic Disadvantages of Intravenous anaethetics?
Thiopental
- Poor analgesia
- Causes significant nausea
- Little muscle relaxation
- Laryngospasm
Propofol
- Poor analgesia
What are the Therapeutic Advantages of Intravenous anaethetics?
Thiopental
- Rapid onset of action
- Potent anaesthesia
Ketamine
- Good analgesia
Fentanyl
- Good analgesia
Propofol
- Not likely to cause nausea
- Rapid onset
- Lowers intracranial pressure
What is Psychosis?
Any disorder so severe that the victim loses contact with reality
What are some examples of disorders w/ psychosis?
- Schizophrenia
- Schizoaffective disorders
- Persistent delusional disorders
- Bipolar disorder w/ psychotic symptoms
- Secondary to drug use, focal epilepsy, dementia, organ brain disease
What % of people have schizophrenia?
1%
What are some +ve symptoms of Schizophrenia?
+ve symptoms tend to be transient and during acute episodes
What are some -ve symptoms of Schizophrenia?
-ve symptoms tend to be chronic
What are some examples of Cognitive deficits / decline in Schizophrenia?
What are some risk factors for Schizophrenia?
Bilogical
- Genes
- Physiological
- Anatomical
Environmental
- Difficult labour
- Hypoxia at birth
- Cannabis
Early indicators
- Few childhood friends
- Withdrawn
Describe the Diathesis model for Schizophrenia?
Genetics generates a predisposition / vulnerability to developing schizo
Stressors / environmental risk factors push an individual over the threshold which leads them to develop schizo
What anatomical changes occur in an individual w/ Schizophrenia?
Atrophy of Caudate nuc.
Increased lateral ventricles
What psychosocial factors are relevant in Schizophrenia?
What are the outcomes of individuals w/ Schizophrenia?
What are some psychological interventions used for Schizophrenics?
- Family Intervention
- Cognitive Behaviour Therapy
- Social-skills Training
What are some catagories of early intervention and assessment targets for adults w/ Schizophrenia?
What is the treatment for a Schizophrenic’s first episode?
Oral antipsychotic medication
In conjunction with psychological intervention (family intervention and individual CBT)
What should be done in the case of continuing treatment and care for Schizophrenic’s?
What are the % of the 3 Schizophrenia prognoses?
Independant - 30%
Relatively dependant - 50%
Highly dependant - 20%
What are Antipsychotics also know as?
- Neuroleptics
- Antischizophrenic drugs
- Major tranquillisers
What is the main action of Antipsychotics?
Antagonising the actions of dopamine in the brain
What are antipsychotics mainly used for?
Describe the Dopamine Theory of Schizophrenia
What is the correlation between efficacy of Antipsychotic and its affinity for D2 receptors?
Dirrectly correlated
High affinity = High efficacy
Describe the Glutamate Theory for Schizophrenia
Name some First Gen Antipsychotics (FGAs)
- Chlorpromazine
- Haloperidol
- Flupentixol
- Zuclopenthixol
Name some Second Gen Antipsychotics (SGAs)
What is the difference between Classic (First gen) and Atypical (Second gen) Antipsychotics?
What are the relative receptor affinities of antipsychotic drugs?
Green - Classic
Pink - Atypical
What are some of the behaivioural effects of Antipsychotics?
What are common side effects of Antipychotics?
What are the two main Extrapyramidal Motor Disturbances in the use of Antipsychotics?
Describe Tardive Dyskinesia
What are some unspecific unwanted side effects of Antipsychotics?
What should be taken into account when using Antipsychotics w/ elderly patients?
What should be done when treating First Episode Schizophrenia?