A patient's right ventricle is failing. While the patient waits for surgery, doctors connect a temporary pump that does the work of the right ventricle. The pump can run at two settings. The table shows the pressure at the pump outlet at each setting.
| Setting | Pressure at pump outlet (kPa) |
|---|---|
| A | 3.3 |
| B | 16.0 |
Explain which setting the doctors should use.
67 exam-style questions on Edexcel GCSE Biology 8.2 Blood and circulation, covering 8.2.1 Structure and function of the blood, 8.2.2 Structure of blood vessels, 8.2.3 Structure of the heart and circulatory system, and 8.2.4 Cardiac output. Each one has a worked solution and a mark scheme showing where the marks go.