Public health Flashcards
what are some definitions of health?
WHO 1948 definition:
– “Health is a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity”
WHO 1984 definition:
– “The extent to which an individual or a group is able to realise aspirations and satisfy needs, and to change or cope with the environment. Health is a resource for everyday life, not the objective of living; it is a positive concept emphasising social and personal resources as well as physical capabilities”
What is public health
The science and art of promoting and protecting health and prolonging life through the organised efforts in society.
What levels of intervention are there in public health?(least to most invasive)
Do nothing or monitor situation, Provide information, Enable choice, Guide choice by changing default, guide choice through incentives, guide choice through disincentives, restrict choice, eliminate choice.
Why is prevention important?
it is better than a cure
What is Primary prevention?
Preventing the onset of disease
What is Secondary prevention?
Preventing the progression of a disease from a pre-clinical stage.
What is tertiary prevention?
Preventing morbidity or mortality through treatment of clinical disease
What needs to be taken into account when launching a public health campaign.
Which type of prevention. What age people? Which services are needed? What budget will you require? What are the political considerations?
What are the unmodifiable determinants of health?
Age, sex, ethnicity, sexuality genetics.
What are some determinants for health?
Income, environment, occupation, culture, societal status and access to education
What are the three domains of public health?
Health improvement, Health protection and Healthcare
What does health improvement involve?
Inequalities Education Housing Employment Family / community Lifestyles Surveillance / Monitoring
What does healthcare public health involve?
Clinical Effectiveness Efficiency Service planning Audit and evaluation Clinical governance Equity
What does health protection public health involve?
Infections diseases Chemicals / poisons Radiation Emergency Response Environ. health
What could be the reason someone smokes?
Parental or peer pressure, educational attainment, quit rates and deprivation.
What are important in publc health and diet (AAAA)?
Access, Availability, affordability and awareness.
what are cultural norms?
Activities or behaviours that are expected or seen as normal.
What are some norms in our society?
can breastfeed in public, smoking is bad, too much alcohol is antisocial but also everyone drinks.
What must you consider when trying to change someone’s behaviour?
• Do people know how to make a change?
• Do people have the skills to implement that
knowledge?
• Do people understand the benefits of change?
• And the risks or costs associated with change?
• Are their any social barriers to change?
• Or any physical barriers?
• Or psychological barriers?
Why is ethics important?
new issues arise all the time like assisted death, fertility problems, transplants
What is ethics?
The attempt to arrive at an understanding of the nature of human values, of how we ought to live, and of what constitutes right conduct. Not certain, it involves value claims. can involve two different perspective
What is meta-ethics?
Explored fundamental questions (can things be right or wrong)
What is ethical theory?
Philosophical attempts to create ethical theories (virtue, categorical imperative, utilitarianism, 4 principles)
What is applied eithics?
Recent emergens of ethical investigation in specific areas.
What is a fact?
Something that is happening
What is the is/ought issue?
you can’t get an ought from an is. just because something is like that it shouldn’t be that way.
What can ethics be based on?
Laws, codes of ethics, religious and/or cultural beliefs, personal conscience
What types of law are important in medicine?
negligence, assault, confidentiality, data protection, mental capacity, homicide.
What is the link between law and ethics?
Laws can set ethics in stone but they often have gaps or lag behind development.
Why can ethics and religion be slightly incompatible?
Religion lacks logic to some of the beliefs.
What are the problems with codes of eithics?
They are not often followed, they are too specific and don’t allow thinking. The codes could be reasoned from poor logic. They might not apply to all situations
What is top down logic?
Deductive logic goes from a general theory to a medical problem.
What is bottom up logic?
Inductive logic takes a settled case and creates a theory or guide to medical practice.
What is the ad Hominem fallacy?
shifting claim to an irrelevant aspect of person making the argument.
What is the authority claim fallacy?
Arguig a claim is correct simply because someone is in authority has said it
What is the Dissenters fallacy?
Identifying people who disagree with an argument does not in itself show that it is wrong.
What process shoudl you use if you come across an eithical dilemma?
Recognise the situation, identify the key problems, identify the legal and professional guidance, if no solution found apply critical ethical analysis and then justify your reasoning.
Which act sets out rules for infection prevention?
The 2010 health and social care Act
Who’s responsibility is infection control?
Everyone’s responsibility
What are the reasons to reduce care related infections?
Costs money, causes harm, increases length of stay, allows antibiotic resistance to increase
What make someone a susceptible host?
Low immunity, elderly neonatal or malnourished, on antibiotics, invasive procedures, those who have IV or catheters inadequate levels of hygiene/cleaning
What is the problems with microbes in hospital?
Increased number in healthcare setting. Antibiotic treatments develop resistant strains.
What are resivours or sources?
Patients and visitors, Staff, Fomites inanimate objects like door handles
What are portals of entry or exit?
Respiratory tract, GI tract, Genito-urinary tract, broken skin
What are the modes of transmission?
Direct transmission- direct contact, bodily fluids, vertical transmission
Indirect- fomites
Vector spread
Airborne spread these are exogenous spread Cross-infections
there are also cases of self spread where moving of bacteria around the body can cause infection.
What is the main infection prevention measure?
washing hands with correct technique less than 50% compliance
What infection control measures are there?
Bare below the elbow to allow effective washing.
When should you wash your hands?
before entering and leaving a clinical area, before and after any patient contact, before and after a procedure, before removing aprons and gloves, after going to the toilet, before food preparation and eating.
What are the types of handwashing?
Level 1- social or routine hadnwash
Level 2- aseptic for on ward
Level 3- Surgical hand scrub
What can you use to wash your hands?
Alcohol gel wont get rid of C diffficile or norovirus and should only be used when hands are visibly clean.
Antimicrobial liquid soap and water
Why is it important to use the hand barrier cream or moisturiser?
dry skin cracks and skin integrity is comprimised.
What types of waste are there on the ward?
Household waste
Clinical waste- Infectious waste for incineration, bloody swabs body parts, orange infectious waste offensice/hygien waste can be general waste. black bags general household waste.
What is a sharp?
Any item that could cut or penetrate the skin.
Why is it important to look after sharps?
To protect staff from injuries and prevents blood borne viruses.
What are the golden rules for sharps?
Disposed in appropriate way, never on the floor, put in sharps bin straight away don’t re sheath a sharp, don’t retrieve it, close it off if its full.
What are standard infection control precaution?
Gloves and aprons when contamination is at risk from bodily fluid. Broken skin, protective eye wear, cuts,
What are barrier precautions?
To protect others from people with a known infection
What is the problem with text books?
They catch up to developments very slowly
Where can you get advice on treatment from?
Guidelines either locally or internationally
How to keep up with developments?
Look for focused studies, only read important clinically relevant articles,
What is the best evidence down?
Systems with computerised support systems, evidence based guidlines or systematic reviews then at the bottom is the actual studies only get to this if other levels don’t get you there
What are good solutions to information overload?
Critically appraising research, reading critically appraised summaries and looking at synopses
What is NNT?
Number to treat to prevent one problem
What is NNH
number needed to harm
What is ARR?
absolute risk reductions
How do you get NNT?
1/ARR
What are some quality markers in diagnostics?
Spectrum of participants, get both tests, interpret separately and blind.
What can you use to look at study quicky?
PECOT population, exposure, comparison, outcome, time.
RAAMbo. representitive adjusted or allocated accounted for measurement and blind of objective.
What is Trip database?
Lookup index of appraised evidence
How is it best to cope with uncertainty?
be aware of it acknowledgement and discuss it to find support
What is Occam’s razor?
The simplest explanation is usually true
What is hickam’s dictum?
Patients can have as many diseases as they want and the sipleset explanation may be multiple diseases.
What is crabtree’s bludgeon?
sometimes there is not a single answer for something complex.
What is pretest probability?
Knowing whether it is worth testing for a certain thing. start with the obvious and the common explanation is often true. it is very likely that that will happen.
What is sensitivity?
The proportion of true positives correctly identified
What is specificity?
Proportion of true negatives that are correctly identified.
What is the biomedical model of medicine?
Western medicine, the mind and body are separate and can be treated separately, solutions are often technological, it is reductionist that there is a cause for diseases, knowledge is presumed to be objective.
What is the social model of health?
Medical knowledge is a social construct, it embraces a mind body dualism, health is affected by the wider socioeconomic context, medical knowledge is not objective
What is the Health as an ideal state theory?
Health is the goal of perfect well being in every respect must be free from disease illness and forms of handicap. who definition used to be based on it. criticisms we can’t be perfect
What is Health as a daily state of functioning?
That its a means towards the end of social functioning, can have chronic disease but be healthy this is linked to biophychosoical model. criticisms, its narrow often much more than absence of disease, sometimes refusing to function is healthy.
What is health as a personal strength or ability?
it is humanist and focus on how people resond to the challenges, its about responding well to things, is trying to be holistic. criticisms- too vague unclear on what, hard to know how to intervene with this definition.
What are the objections to defining health?
things change over time, the medical definition is new and older understanding can be more meaningful as they open up more routes to improving health, narrow definition of health you have to consider wider causes of disease.
How can you define disease?
Disease is an aggregate of conditions judged to be painful or disabling an deviating from the norm social or statistical. Culver and Gert but it mixes disease and illness you can be ill but not feel it.
Disease is a state of the organism tat is fiting a losing battle.
A disturbance of the structor of function of the body.
often lead to circular arguements
What is the biomedical model of health?
More diseas and pain = worse health
The problems they have can be treated. health is something that can be provided by treatment. it was used to inspire governments to invest in health services.
What is Health as a commodity?
Commodities can improve help. but there can be mysticism with this definition, we feel that we can regain something that we lost because of some sort of failing, the commodities provided to us by medical practitioners will somehow help us to regain our lost state of health. can be delusional.
Why is the definition of illness important?
Disease isn’t homogeneous and social problems can end up being labelled as medical ones.
Why are definitions of health important?
Definition of disease affect how we treat it and what services we provide and how we view disease and illness.
What is the sick role?
The privileges and obligations that accompany illness
What are doctors roles in the sick role?
Illness is a state of social deviance and is an unnatural state. Doctors are actors of social control, moral guardians and distinguishing between normality and deviance.
What do you get as part of adopting the sick role?
Legitimate withdrawal from social obligations, not blamed for their condition, must want to et well as soon as possible and take up their social responsibilites, and seek medical help
What does the professional have to do in the sick role?
Objectibve and non judgemental, must not act out of self interest, must obey a code of practive, be professionally competent, has the right to examine a patient.
What is the role of the doctor in the sickrole?
Only a doctor can allow entry gives official guidance that they are not malingering. the medical profession is neutral in its fulfilment of community intersts rather than its own self interest.
What are some problems with the sickrole?
Disabilities aren’t suited, chronic condition, medically unexpained symptomes, not all conditions involved, some are caused by the person, people aren’t criticized for not fulfilling their duties.
what are the strengths of the sickrole?
people get care sympathy financial allowances and time off work which helps them
What is the theory of consequentialism?
Looking at the morality of an action by its consequences.
What is utilitarianism?
maximising good well being and welfare for the most number of people
What are the types of consequentialism?
Act and rule based.
What is Act vs Omission?
Is harm by omission wors than harm than by action.
What is the doctrine of double effect?
You do something because the act you do is with good intentions but there is a secondary harm that is a consequence eg morphine palliative care.
What are challenges of utilitarianism?
what is useful, it discriminates minorities
What is deontology?
To do with the innate worth of the action. either kantiamism or virtue ethics
What is Kantianism?
Imperatives are categorical set rules like don’t lie or hypothetical do something to get an outcome.
What are the problems with deontology?
The key concernt is duties and rights not about consequences of actions but have a worthiness the duties can conflict
What is virtue ethic?
Focuses on the character of an agent integrates reason and emotion.
What are the limitation of virtue ethics?
Is it culture-specific? its too broad to have practical application, emphasiss of character can ignore the effects
What are the four principals?
Benificeience, Autonomy, Non-maleficence, justice
What is Autonomy?
Self determination, need Agency (cognitve ability to make decisions)Liberty( not be pressured)
What is Justice?
Like case like and unlike cases differently, need vs benefit, utility
What is medicalisation?
It is explaining problems in medical terms, in can be conceptual in the terms used to define a problem, institutionally when organasiation adopt a medical approach to a problem. Doctor-patient interations where a problem is defined as medical.
What is the process of medicalisation?
Behaviour defined as deviant, mecial conception of such behavior in a journal, claims from groups to help, legitimation of claim and it is designated a disease.
Is medicalsiation reversible?
Medicalisation is reversible eg homosexuality.
What are causes of medicalsiation?
It’s medical profession using its power to define and control, broader social processes and doctors facilitate, bureauccratization with industrialisation, pharma companies want in.
What are causes of iatrogenesis in medicalisation?
Clinical unintended side effects of treatments, Social leads to sick role, Cultural health professionals have an even deeper heath denying impact that removes peoples ability to deal with their weakness and vulnerability.
What are the benefits of medicalisation?
Alleviate symptoms, legitimates and reduces stigma, counteracts blame
What are the criticisms of medicalisation?
Over simplistic, underestimates the degree to which modern medicine has been successful in eradicating disease, the addition of patients to modern medicine is considerably over.
What is genetic counselling?
Process that patiente or relatives at risk of a disorder than mat be hereditary are advised of the consequences and risks.
What are two concepts for counselling?
Non-directive and Non-judgemental
Why would you want directive counselling?
Family dosen’t understand full counselling. family may expect to be directed, doctors know best? reduce disease frequency?
Why should counselling be non- directive?
Family might have personal experience, decisions on reproduction are personal, can be counter productive, aim of it is to help them
What is a diagnostic test?
Confirmed whether a condition is present or not