A pulse oximeter measures the percentage of oxygen in the blood by using a small clip or tape with a sensor placed on a finger or toe. Individuals with SMA may need extra breathing support, particularly while sleeping, if their oxygen levels drop too low.1
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1.SMA News Today. Available at: https://smanewstoday.com/specialized-equipment-for-spinal-muscular-atrophy/ Accessed on 16 June 2025.
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