A cardiac rehabilitation service supports people after treatment for coronary heart disease (CHD).
Priya has had a stent inserted into a coronary artery. At her first rehabilitation appointment, the nurse records these features of Priya's lifestyle.
| Feature | Nurse's record |
|---|---|
| smoking | Priya smokes cigarettes every day. |
| diet | Priya often eats meals that are high in fat. |
| physical activity | Priya is rarely physically active. |
A scan was used to measure the diameter of the narrowest part of Priya's coronary artery.
| Time of measurement | Diameter in mm |
|---|---|
| before the stent was inserted | 1.1 |
| immediately after the stent was inserted | 3.2 |
Give two changes Priya could make to reduce her risk of further coronary heart disease.
Explain how the scan measurements provide evidence that the stent has worked and how this benefits Priya's heart muscle.
Use the measurements in your answer.
The rehabilitation service compares two follow-up packages. The table shows results from 100 people who used each package after having a stent inserted.
| Follow-up package | Support provided | Additional cost per person in the first year | Number whose coronary artery narrowed again within one year | Number reporting muscle pain |
|---|---|---|---|---|
| R | monthly sessions about diet and physical activity | £80 | 16 | 0 |
| S | the same monthly sessions and a statin tablet taken every day for life | £150 | 7 | 12 |
Evaluate which follow-up package the service should recommend.
In your answer, compare the results, consider the cost and a disadvantage, and give a justified conclusion.
181 exam-style questions on OCR GCSE Biology 6.3 Monitoring and maintaining health, covering 6.3.1 Health and disease, 6.3.2 Interactions between diseases, 6.3.3 Spread of communicable diseases, 6.3.4 Common infections and diseases, 6.3.5 Physical plant defence responses, 6.3.6 Chemical plant defence responses, 6.3.7 Detecting and identifying plant diseases, 6.3.8 White blood cells and platelets, 6.3.9 Non-specific defence systems, 6.3.10 The immune system, 6.3.11 Monoclonal antibodies, 6.3.12 Vaccines and medicines, 6.3.13 Aseptic techniques, 6.3.14 Discovery and development of new medicines, 6.3.15 Causes of non-communicable diseases, 6.3.16 Treatments for cardiovascular disease, 6.3.17 Lifestyle factors and non-communicable diseases, 6.3.18 Cancer, 6.3.19 Stem cells in medicine, 6.3.20 Gene technology in medicine, and 6.3.21 The human genome and medicine. Each one has a worked solution and a mark scheme showing where the marks go.