Q.1 The prostate gland surrouns the water pipe (urethra) in men. It gets larger as men get older and may cause various problems with the waterworks as it does so.
Q.2 An x-ray of your back gives you a radiation dose 75 times that of one of your chest and often is not very useful in normal cases of back pain as these are caused by muscular and ligament problems which do not show up on x-rays.
Q.3 Rheumatic fever is something completely different to rheumatoid arthritis and is an infection which may damage the valves in the heart.
Q.4 Goodpastures disease affects the kidneys.
Q.5 When you are in shock, your blood presure is low.
Q.6 If you were dyspnoeic you would be short of breath.