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Kidney problems,dialysis,bruises,itching on feet.

I am 95 years old, and I get bruises quite frequently and all over my body. Recently I had them on my legs, and before the bruises appeared, I had this terrible itcht on the bottom of my legs. The following day my carer pointed out the bruises to me. I think it is important to let you know that I do have Kidney problems, for that I go two times a week for dialysis . I am physically well, what do you think is causing the buises to appear and then later go away. Thanking you
Asked On : Sat, 21 Apr 2012
Answers:  2 Views:  138
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Gastroenterologist, Surgical 's  Response
In patients suffering from chronic renal failure , the platelets usually develop a dysfunction. They are responsible for preventing small bleeds. But if they cease to function then the patient develops a propensity for small hemorrhages which usually develop spontaneously. As soon as the dialysis session is completed the platelets will function optimally for some time. If the problem goes beyond control then a particular medication is given which is a synthetic anologue of vasopressin. You should consult your nephrologist who will guide you in this respect.
Answered: Sat, 21 Apr 2012
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General & Family Physician Dr. Abeed Basheer's  Response
As you told in your history your having dialysis two times a week can explain the cause of your bruises.An increased incidence of spontaneous bleeding occurs in hemodialysis patients which is related to several factors like heparinisation during dialysis,ongoing anticoagulation therapy and platelet abnormality of uremia.First I will tell you about heparin.It is a substance given to prevent blood from clotting.It is given in hemodialysis to prevent your blood from clotting when it is taken out of your body into the dialysis machine.The effect of heparin stays for sometime after dialysis which can be one of the factors causing your bruising.Secondly the platelets or the cells which cause clotting will be abnormal in people having kidney problems .The platelets can adhere to the dialysis machine membrane releasing other chemicals which prevent blood from clotting.As such the bruises on your body need not worry you but it is there to remind you that you are always under risk of severe bleeding.As such I would recommend you to have your blood pressure at least twice daily and any drop in your blood pressure should be carefully investigated
Answered: Sat, 21 Apr 2012
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