SBA questions Flashcards

1
Q

The differences in health outcomes between social classes

A

1) Artefact – the differences in health status that are observed are due to the limitations of measurement.
2) Social selection/mobility - health determines class position not vice versa: the healthy more likely to move up social hierarchy, the unhealthy more likely to move down
3) Behavioural/cultural - Differences in health status arise because of class differences in behaviours that are health damaging or health promoting
4) Materialist/ structuralist – Differences in health status is caused by differences in income, occupation, housing & work environment, economic and social deprivation (i.e. structural factors)

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2
Q

Define rheumatic fever

A

A systemic post streptococcal inflammatory disease affecting the heart and other sites (joints, brain and skin)

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3
Q

4 clinical manifestation of mitral stenosis

A

Dyspnoea, fatigue, dizziness, palpitations, oedema, diastolic murmur

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4
Q

The haemodynamic mechanism of mitral stenosis

A

Dyspnoea usually results from the elevation in left atrial pressure, and pulmonary venous hypertension, which leads to reduced compliance of the lungs and a decrease in vital capacity. Dyspnoea also may be related to an inability to increase the cardiac output with increased metabolic demands

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5
Q

The initial steps after a needle stick injury

A

1) Ensure patient is safe
2) Immediately encourage bleeding by applying pressure around the wound
3) Wash the area with soap under running water for approximately 5 minutes.
4) Inform the appropriate staff as an accident form will need to be completed and appropriate action taken

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6
Q

The common histopathological type of colonic carcinoma

A

Adenocarcinoma

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7
Q

The pathophysiological mechanism of diabetes

A

Net insulin deficiency leads to hyperglycaemia

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8
Q

Why do diabetics pass more urine

A

Osmotic diuresis (hyperglycaemia)

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9
Q

A test used to determine the sensitivity of microorganisms to antibiotics

A

1) Disc diffusion method / Kirby-Bauer method

2) Broth dilution method/assay

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10
Q

Name the four principles that feature in principalism

A

autonomy: self-determination
beneficence: well-being or best interests
non-maleficence: the ‘no harm’ principle
justice: fairness or equity

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11
Q

Three areas of the GMC’s ethical guidance

A
Consent and shared decision making
Confidentiality
Leadership and management
Research
Care at the end of life
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12
Q

Explain with examples the biopsychosocial model

A

The biopsychosocial model states that a persons health is influenced by social (eg unemployment, social isolation), psychological (eg. stress, traumatic life events) and biological (eg. genetics, blood pressure) factors and that all should be taken into account when treating a patient.

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13
Q

Explain the three stage model of reflection

A

What- the experience
So what?- reflection
Now what- learning from the experince

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14
Q

Explain the basis of systolic and diastolic blood pressure and the meaning of the values?

A

Systolic pressure represents the pressure of arterial blood measured in mm of mercury in the brachial artery during cardiac systole, the second is during cardiac diastole

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15
Q

The mechanism in which hypertension damages arteries?

A

Hypertension causes injury to vessel walls. It also causes endothelial injury and vascular cell proliferation which amplifies the atherosclerotic pathway

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16
Q

List the 4 organs commonly damaged by Hypertension and the mechanism of injury

A

1) The heart via coronary artery disease.
2) The brain via aneurysms and stroke. It can damage the aorta via aneurysms and dissection.
3) The kidneys via renal artery stenosis.
4) The eyes can be damaged via retinal emboli which are commonly sourced from the carotids

17
Q

Why does Hypertension cause left ventricular hypertrophy?

A

Hypertension increases the force required for the heart muscle to eject blood through the aortic valve. Initially there will be an increased left ventricular afterload. This will cause increased levels of multiple hormones and increase contractility. As with any muscle, repeated stimulation of a muscle causes it hypertrophy.

18
Q

Describe the findings on the fundoscopy that you would expect to find in grade 1-4 hypertensive retinopathy

A

Grade 1 hypertensive retinopathy shows vascular attenuation only.
Grade 2 hypertensive retinopathy demonstrates vascular attenuation and AV nipping
Grade 3 shows the same as grade 2 plus cotton wool spots and flame haemorrhage
Grade 4 retinopathy shows the same as grade 3 plus optic disc odema, a muscular star and silver wiring

19
Q

Investigations into left ventricular hypertrophy

A

ECG changes- left axis deviation, Sokolov-Lyon criteria.

Echocardiogram- direct evidence of left ventricular hypertrophy

20
Q

Features of chest pain that would suggest it’s cardiac in origin

A

1) Central or left
2) Crushing in nature
3) Radiating to left arm or jaw
4) Associated with palpitations, sweating and nausea
5) Associated with exercise

21
Q

4 conditions which result from atheroma

A

1) Ischaemic heart disease
2) Vascular dementia
3) Aortic aneurysm
4) Renal artery stenosis

22
Q

Explain the pathological difference between a myocardial infarction where ST elevation is present and when it is not

A

In ST elevation the myocardial infarction is full thickness infarction of the myocardium.

23
Q

Describe how an ‘inferior’ myocardial infarction can cause heart block

A

An inferior myocardial infarction refers to an infarction of the right coronary artery territory. The AV node is usually supplied by the right coronary artery and when infarcted it leads to heart block.

24
Q

State an advantage of using an MRI scan instead of a CT scan for pregnant woman

A

MRI does not use ionising radiation like a CT scan so is safer for pregnant woman

25
Q

Causes of sporadic dilated cardiomyopathy (DCM)

A

Sporadic DCM: happens in a person with a normal heart in response to an insult

myocarditis: viral, bacterial or parasitic
toxins: chemotherapy, alcohol
autoimmune: rheumatoid, systemic lupus erythematosus
endocrine: thyrotoxicosis
neuromuscular

26
Q

A complication atherosclerosis may lead to?

A

Aneurysm- a true aneurysm is a localised permanent dilation of the arteries

27
Q

What can a urine sample contain in a UTI

A

Leucocytes, nitrites, protein and sometimes traces of blood

28
Q

Symptoms of kidney

A

1) No symptoms at early stage
2) Swollen ankles, feet or hands
3) Dyspnoea
4) Tiredness
5) Haematuria
6) Increased urinary frequency
7) Nausea
8) Pruritis
9) Erectile dysfunction

29
Q

Why do patients with CKD need to protect their bones)

A

At risk from renal bone disease. The kidneys are a key organ in the regulation of bone metabolism through regulation of calcium, phosphate and vitamin D. Their bones can get weaker and thinner

30
Q

The two main treatment options for end stage renal disease

A

Dialysis or renal transplant are the main treatment options for end stage renal disease. Dialysis is a method of filtering the patient’s blood and removing waste products in the manner that a healthy kidney would. Renal transplant is another good option but there is often a long waiting list awaiting a suitable donor.

31
Q

Strengths and weaknesses of a cross-sectional study

A

Looking at one specific population of individuals at a specific moment in time
Strengths- measures prevalence, association between exposure and disease. Quick, low cost
Weakness= Only useful in common illnesses, might miss severely ill, snapshot (misses acute illness)

32
Q

Causes of Hyperkalaemia

A

1) Kidney/renal disease
2) Hypoaldosteronism
3) Diabetes
4) ACE inhibitors

33
Q

How does the UK bowel screening program go against WHO guidline

A

The screening test is not acceptable to a large proportion of the population who decide not to take part

34
Q

Modifiable risk factors which increase the risk of bowel cancer

A

1) Red meat consumption
2) Low fibre diet
3) Obesity
4) Alcohol consumtpion
5) Smoking

35
Q

Non-modifiable risk factors for bowel cancer

A

1) Diabetes
2) Inflammatory bowel disease
3) Family history of bowel cancer
4) Bowel adenomas

36
Q

Causes of macrocytic anaemia

A

1) Vitamin B12 or folate deficiency
2) Medication
3) Alcohol
4) Liver disease
5) Bone marrow dysfunction

37
Q

What criteria must a screening test fulfil

A

1) The disease
2) The screening test- valid, simple and cheap, reliable, safe and acceptable
3) Diagnosis and Treatment
4) The Programme.