What should you know about creative medical pulse oximeter?

A small sensor, commonly clipped to a fingertip, detects changes in light passing through the tissue. It provides an estimate rather than a complete assessment of breathing, circulation or illness. Cold fingers, movement, nail products, poor circulation and an incorrectly positioned sensor can make a result less dependable.

A single unexpected result is best checked by sitting quietly, warming the hand, keeping still and repeating the measurement. Trends and symptoms are more useful than treating one number as a diagnosis.

Follow the device instructions, remove anything that blocks the sensor, and rest before measuring. Record the reading with the time, pulse rate and symptoms if a clinician has asked you to monitor it. Do not delay care because the display appears reassuring, and do not change prescribed treatment based on the device alone.

If readings are repeatedly unexpected or the device is difficult to use, arrange a GP Consultation for an assessment of the result and your symptoms. See Pulse Oximeter for more information about the technology.

Seek emergency help for severe breathlessness, blue or grey lips, sudden confusion, fainting, severe chest pain, or rapidly worsening symptoms, regardless of the displayed reading. Contact a clinician promptly when breathlessness, fast breathing, unusual sleepiness or worsening illness continues, especially if repeated readings are lower than expected for you.

How should I measure and record readings at home? What result or symptom should prompt urgent help in my situation? Could my circulation, medication or lung condition affect the measurement? Do I need an examination or another test?