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Feet turn black in peripheral gangrenous changes, in diseases of arteries which lack to supply blood distally, due to insufficiency.e.g.DIABETIC FOOT .
Feet turn blue in Peripheral cyanosis, in cardiovascular diseases , especially in children,in arterial insufficiency to regulate oxygenated blood to the distal extrimities. E.g. TETRAD OF FALLOT.
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In which of earth's atmosphere does the sky turn from blue to black?
100,000 feet.
Why do fingers and feet turn blue in the elderly?
Fingers and feet turn blue in the elderly because these individuals have poor circulation. The blue color is the effect of the area becoming cold.
Why does a red t shirt turn black under a blue light?
red and blue makes black
Why does silver nitrate turn blue?
Silver Nitrate does not turn blue - it turns purple-black and then black. It was the basis for early photography before the digital age.
Why do your feet turn black and blue and how do you treat it?
If you are wearing black or blue socks, wash your socks in hot water to get rid of the excess dye. Or perhaps your shoes are too tight. If that's not it, then you should see a doctor. Tomorrow. Maybe even tonight.
Why don't your feet turn red when you are standing?
because there blue
What is the black keys new album?
turn blue
What color does iodine turn a onion?
blue
Why do your feet turn blue-purple?
Your feet turn blue-purple when they do not get enough blood flow or when they are lacking circulation or some times they are cold the best thing to do is rub them or run them under warm water.
What colors could you mix with green to turn black?
blue
What color does iodine turn in the presence of startch?
blue/black
Why do feet turn black?
One reason can be frost bite.
