A patient is diagnosed with high blood cholesterol and is identified as being at risk of coronary heart disease (CHD).
Statins are drugs often prescribed to individuals with high cholesterol levels. Explain how statins reduce the risk of coronary heart disease.
A surgeon decides to implant a stent in one of the patient's blood vessels to restore normal blood flow. In which type of blood vessel is a stent fitted?
Tick (✓\checkmark✓) one box.
Explain how a stent helps to prevent a myocardial infarction (heart attack).
Table 1 shows the relative risk of developing coronary heart disease (CHD) based on the percentage of daily dietary energy obtained from saturated fats. A relative risk of 1.00 represents the baseline risk of the reference group.
Table 1
| Dietary Group | Saturated fat intake (% of daily energy) | Relative risk of CHD |
|---|---|---|
| A | 5 | 1.00 |
| B | 10 | 1.15 |
| C | 15 | 1.45 |
| D | 20 | 1.50 |
Give two conclusions that can be made from the data in Table 1.
Describe one risk factor, other than dietary fat intake, that can increase the likelihood of developing coronary heart disease.
44 exam-style questions on AQA GCSE Biology 2.2 Animal tissues, organs and organ systems, covering 2.2.1 The human digestive system, 2.2.2 The heart and blood vessels, 2.2.3 Blood, 2.2.4 Coronary heart disease: a non-communicable disease, 2.2.5 Health issues, 2.2.6 The effect of lifestyle on some non-communicable diseases, and 2.2.7 Cancer. Each one has a worked solution and a mark scheme showing where the marks go.