CNA Certification (Written Exam)Basic Nursing SkillsMedium
A nurse aide is using a pulse oximeter to check a resident's oxygen saturation. The device reads 94%. What should the nurse aide do?
- ADocument the reading and report it since it is below the normal range
- BRemove the oximeter because the reading is inaccurate
- CReport this reading immediately as a medical emergency
- DRecognize this as within the normal range and continue routine care
Show answer & explanationAnswer & explanation
Correct answer: A. Document the reading and report it since it is below the normal range
Normal pulse oximetry (SpO2) readings are typically 95%-100%. A reading of 94% is slightly below normal and should be documented and reported to the nurse, though it may not be an immediate emergency requiring urgent action like calling for help.
Why the other options are wrong
- B. There is no indication the device is malfunctioning.
- C. 94% is low but not automatically an emergency; report through normal channels.
- D. 94% falls just below the normal 95-100% range, so it is not normal.
Normal Oxygen Saturation (SpO2)
Normal pulse oximetry readings range from 95% to 100%. Readings below 95% should be reported to the nurse.
- Normal SpO2: 95%-100%
- Below 90% is often considered critical
- Always report abnormal readings promptly
Memory trick: '95 to stay alive' — below that, report it!