Oxygen delivery devices need to be checked as part of the whole respiratory assessment. The device name and flow setting matter, but so do the prescribed target, the patient’s breathing, and whether support needs are increasing.

This adult nursing refresher covers bedside checks, not independent prescribing. Follow the current order, emergency protocol, manufacturer instructions, and your required competencies. Obtain prompt help when the patient is deteriorating.

Confirm the target and the intended device

The British Thoracic Society oxygen guideline describes treatment toward a target saturation range. Different patients may need different targets, including those at risk of hypercapnic respiratory failure. Check the documented plan rather than assuming that a higher saturation is always better.

Resolve a missing or contradictory order through the clinical team. In an emergency, follow the emergency oxygen pathway while seeking urgent assessment. Do not delay emergency care to complete routine documentation.

Check the device-specific setup

  • Nasal cannula: check placement and tubing, including whether the device remains in position.
  • Simple mask: use the specified operating flow and fit; it is not interchangeable with a cannula at the same numerical flow.
  • Venturi mask: match the adapter and required flow to the intended oxygen concentration and manufacturer instructions.
  • Reservoir mask: check the reservoir and equipment function according to the emergency protocol and device instructions.

The BTS guideline describes these systems in detail. High-flow nasal oxygen and other advanced support require their own setup, monitoring, and trained staff. A brief device list is not sufficient instruction for initiating them.

Look at breathing while you check the reading

Observe respiratory effort, rate, alertness, and the patient’s report of breathlessness. A reading inside the prescribed range does not explain why someone now needs substantially more support to stay there. Communicate that change.

The FDA’s pulse oximeter guidance explains that readings are estimates and can be affected by several factors, including circulation, movement-related measurement conditions, and skin pigmentation. Evaluate unexpected results alongside symptoms and the clinical assessment; do not dismiss distress because of a single reassuring display.

Trace the equipment and protect the skin

Check that the tubing connects to the intended supply and is not kinked or trapped. During routine care, look where the device contacts the skin and ask about discomfort. Follow local procedures for preventing pressure and for any humidification or comfort measures.

A useful practical question is: “If the patient moves to the chair or leaves for imaging, what has to remain connected and who will check it?” Confirm transport arrangements with the responsible team. Avoid discovering an equipment gap after the patient has left the room.

Keep oxygen fire precautions visible

Follow the facility’s fire safety rules. The NHS home oxygen guidance reinforces avoiding smoking, flames, and oil-based products around oxygen. For discharge teaching, use the patient’s actual supplier instructions and prescribed equipment plan.

Handoff support and response together

Report the device, settings, prescribed target, recent saturation trend, respiratory findings, and changes made under orders or protocol. “On oxygen” is too vague to explain the current situation.

For related assessment, see our vital signs guide. The COPD nursing interventions article adds condition-specific context without replacing the individual oxygen plan.