Cardio & respiratory test
Oxygen Saturation (SpO2)
Pulse oximetry check of blood oxygen levels.
Duration
2 min
Category
Cardio & respiratory
Included in
2 medicals
What It Involves
A quick finger-clip reading of the oxygen level in your blood, taking only a few seconds. It's often paired with other cardio-respiratory checks (spirometry, ECG) in more comprehensive medicals like offshore and diving, where working at height, underwater or in confined spaces makes good baseline oxygen saturation especially relevant.
What to Bring
Valid photo ID (passport or driving licence) (and 1 more items)
Frequently Asked Questions
Yes - dark nail polish can interfere with the finger clip sensor, so it's worth removing it beforehand if you can.
Healthy adults typically read 95-100% - your clinician will flag anything below that for a closer look.
Health questionnaire
If your clinic requires a pre-visit health form, we'll email you their link. You complete it directly with the clinic — we never see or store your answers.