If you are using a pulse oximeter on a neonate post-delivery, which hand do you use?

If you are using a pulse oximeter on a neonate post-delivery, which hand do you use?

• A. Right hand
• B. Left hand
• C. Either hand
• D. Foot

Answer: (A)

Place the pulse oximeter on the right hand because that site provides pre-ductal arterial oxygen saturation—blood that has just left the heart before passing through the ductus arteriosus. Reading pre-ductal saturations gives the most accurate early picture of systemic oxygenation in a newborn and helps guide resuscitation decisions. The feet measure post-ductal saturations and can lag or differ from the pre-ductal reading, so they’re not preferred for the initial assessment. In practice, the right hand is used for consistency with established pediatric SpO2 targets, and it’s the most reliable single-site location when monitoring a neonate right after birth.

Place the pulse oximeter on the right hand because that site provides pre-ductal arterial oxygen saturation—blood that has just left the heart before passing through the ductus arteriosus. Reading pre-ductal saturations gives the most accurate early picture of systemic oxygenation in a newborn and helps guide resuscitation decisions. The feet measure post-ductal saturations and can lag or differ from the pre-ductal reading, so they’re not preferred for the initial assessment. In practice, the right hand is used for consistency with established pediatric SpO2 targets, and it’s the most reliable single-site location when monitoring a neonate right after birth.