Faulty heart valves can be replaced using biological or mechanical valves. The faulty valve is replaced during an operation. Biological valves: . are from animals or human donors • allow blood to flow through them normally • wear out and stiffen over time, so may need to be replaced. Mechanical valves . are made from synthetic materials ● may cause blood clots on the surface of the valve • require anti-clotting drugs to be taken for the rest of the patient's life . can last for a very long time in ideal conditions. A young woman enjoys extreme sports and would like to start a family. The woman needs a heart valve replacing Describe the advantages and disadvantages for this young woman of having a biological heart valve instead of a mechanical heart valve [4 marks]
