An x-ray can look for an extra rib at the base of the neck, called a cervical rib.Blood tests can also help to show if you have primary or secondary Raynaud’s. Blood tests can show how many white and red blood cells you have, as well as other information that will help a doctor decide if you have Raynaud’s.There are various tests your doctor can carry out if they suspect you have Raynaud’s phenomenon. Raynaud’s may also develop as a side effect of some drugs such as beta blockers, which are used in the treatment of high blood pressure and angina. This is called hand-arm vibration syndrome (or vibration white finger). Raynaud’s phenomenon can occur as a result of using vibrating machinery, for example pneumatic drills, hammer drills, hedge cutters and other power tools. The blood vessels reduce in size, and so less blood can flow through them.Įmotional changes, such as feeling worried, can also cause an attack of Raynaud’s by triggering the nerves to shut down the blood supply. People with Raynaud’s phenomenon probably respond too much to cold temperatures and shut off the blood supply more quickly than normal. This is a natural reaction, to prevent a loss of heat from the body. The nerves can reduce the blood supply in response to certain situations, one of which is extreme cold temperatures. The blood supply to the fingers and toes is controlled partly by nerves connected to the blood vessels. However, we do know that the colour changes and pain of Raynaud's are due to a short-term reduction in blood supply. We don’t fully understand why some people develop Raynaud’s phenomenon. But men, babies, children and older people can also be affected. Primary Raynaud’s phenomenon usually affects young women and teenage girls. When this happens, it’s called secondary Raynaud’s phenomenon. Raynaud’s can also be linked with other conditions, such as scleroderma, and less commonly lupus. Most people with primary Raynaud’s won’t go on to develop any further problems. Primary Raynaud’s is a fairly common condition. This is called primary Raynaud’s phenomenon. Raynaud’s phenomenon often occurs on its own. Going out on a cold day, or even reaching into the freezer to take out some frozen food, can bring on an attack of Raynaud’s. These colour changes often happen alongside pain or a tingling feeling. For example, your hands may just go blue then red. You may not experience all four stages every time. Usually they will go white, then blue, sometimes black, and then red. The most common thing to happen is for fingers, and slightly less commonly toes, to change colour. It most commonly affects fingers and toes, but can sometimes also affect lips, noses, ears and nipples. This happens mainly when you get cold, and it can also happen because of stressful situations. Raynaud’s phenomenon (Ray-nodes fen-om-e-non) causes blood to stop flowing properly to the outer parts of the body.
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