He looked horrible in the delivery room, but we got him up here and his blood gas came back great.

On the other hand, perhaps he could test blood gases.

He turned to the computer and punched in a request for blood gases.

"They see the impact of ordering blood gases every four hours instead of twice daily," he said.

Once oxygen is started, arterial blood gases should be checked.

The 2 groups had similar ages, arterial blood gases, and spirometry.

Arterial blood gas is taken from an artery instead of a vein.

"There's an arterial blood gas to be drawn on a patient up here."

"I got a call to draw an arterial blood gas on a patient in the recovery room."

If the blood gases show enough improvement, the amounts and pressure of oxygen will be reduced.