In methemoglobinemia, the hemoglobin is unable to release oxygen effectively to body tissues. People with the disorder have chocolate-colored blood and blue skin.

A look at methemoglobinemia, ... A baby born with the condition may have a bluish tinge to their skin, which is called cyanosis. This color might be apparent at birth or shortly afterward.

The woman's blue skin was caused by methemoglobinemia, ... It also explains the unusual brown color of the blood, which darkens from a typical bright red as a result of holding on to oxygen.

Too much topical benzocaine gave a woman acquired methemoglobinemia, which turns the blood blue, ... “The skin color looked exactly the same,” Warren told NBC News.

When that level rises to 10-20 percent, the result is blue-tinged skin. While the genetic condition didn’t seem to have any notable health impact, it did affect the Fugate family psychologically ...

“The skin color looked exactly the same,” Warren told NBC News. “You see it once, and it stays in your mind.” The diagnosis prompted Warren to take a more precise measurement of the woman ...

A syringe filled with the dark blood of the 25-year-old woman who was diagnosed with methemoglobinemia New ... a fast heartbeat, dizziness and cyanosis—where the skin turns a blueish color.

Doctors in Rhode Island say a 25-year-old woman's skin and nails turned blue from a condition called acquired methemoglobinemia. (New England Journal of Medicine /New England Journal of Medicine) ...

The skin discoloration suggested that her body wasn’t getting enough oxygen. When doctors drew some of her blood, it appeared as a dark, chocolate-brown color rather than the usual vibrant red.