A man has narrowed coronary arteries. His doctor discusses two treatments, statins and a stent.
The Table shows information about the two treatments.
Table
| Treatment | How often the treatment is needed | Possible risks |
|---|---|---|
| statins | tablets taken every day for life | muscle pain, liver problems |
| stent | one operation | infection, bleeding, a blood clot forming in the stent |
Explain how a stent increases the amount of oxygen reaching the heart muscle.
Explain how statins reduce the risk of a heart attack.
Use the Table to give one advantage and one disadvantage of statins compared with a stent.
The doctor also advises the man to change his lifestyle.
Explain why.
44 exam-style questions on Edexcel GCSE Biology 5.4 Non-communicable diseases, covering 5.4.1 Interaction of factors in non-communicable disease, 5.4.2 Lifestyle factors and non-communicable disease, and 5.4.3 Treatments for cardiovascular disease. Each one has a worked solution and a mark scheme showing where the marks go.