During the clinical assessment, the doctor noted that the patient's oxygen pulse was lower than expected, suggesting reduced oxygen uptake per heartbeat at rest.

The diver checked the oxygen tank before descending.

During the emergency drill, the instructor showed us how to secure the oxygen mask quickly and comfortably.

After the severe asthma attack, the patient required oxygen therapy to stabilize her breathing.

After a long week, she and her friends went to an oxygen bar to breathe aromatherapy-scented oxygen and unwind.

In models of massive stars, oxygen burning is the nucleosynthesis phase that follows carbon burning, during which neon disintegrates and oxygen fuses to form silicon, phosphorus, sulfur, and other elements up to atomic number 40.

Before the summit push, she double-checked her oxygen bottle and tightened the regulator to ensure a steady flow.

The paramedic quickly checked the oxygen cylinder before entering the smoke-filled building.

After the sprint, she measured her oxygen debt to plan a cooldown that would clear the accumulated lactic acid.

The wastewater treatment report showed that the plant's oxygen demand exceeded legal limits.