blood gas

"If you’re doing the combination of hyperventilation and breath holds, you’re shifting these blood gas levels up and down to the point that those shifts alone can have effects."

“If you’re doing the combination of hyperventilation and breath holds, you’re shifting these blood gas levels up and down to the point that those shifts alone can have effects,” he said.

She sent him to the hospital for an arterial blood gas draw.

Mr Johnson then asked Ms Letby about a blood gas record chart relating to one of the babies in this case, which was also found at her home.

“������ we were seeing anecdotally was exactly what we ended up showing in the final paper, that on the monitor in the patient’s room, the pulse oximeter would be reading ‘normal,’ but when we got an arterial blood gas, the saturation on the gas was low,” he said.