He had a carboxyhemoglobin level of 64%, or 14% higher than lethal levels, officials said earlier this month, according to ABC News. He was found dead in his hotel room, CNN reported.

OIJ Director Randall Zúñiga reported a carboxyhemoglobin level of 64% in Gardner’s blood, well above the lethal 50% threshold, per a toxicology report finalized April 2. Tests detected 600 parts per ...

"It's likely a baseline level of elevated carboxyhemoglobin levels in the community," Dr. Cynthia Morrow, with the Virginia Department of Health, said.

COVINGTON, Va. (WDBJ) - Health officials said elevated levels of carbon monoxide at Covington Middle School may be the result of a larger community issue. Officials held a news conference Thursday ...

Dr. Cynthia Murrow added, “The Department of Environmental Quality, we have been looking at potential community sources of elevated carboxyhemoglobin levels, so whether there’s an ...

A toxicology report cited this week found Miller's carboxyhemoglobin levels, which is the amount of oxygen-carrying hemoglobin tied up by carbon monoxide, to be 64 percent; federal guidelines for ...

Carboxyhemoglobin saturation levels above 50% are considered lethal, according to the center. Toxicity levels of 10% to 30% may also be lethal in patients with underlying ischemic cardiomyopathy.

Carboxyhemoglobin saturation levels above 50% are considered lethal, according to the center. Toxicity levels of 10% to 30% may also be lethal in patients with underlying ischemic cardiomyopathy.

Carboxyhemoglobin saturation levels above 50% are considered lethal, according to the center. Toxicity levels of 10% to 30% may also be lethal in patients with underlying ischemic cardiomyopathy.