What should be the nurse's first action for a cyanotic newborn at 6 minutes of life, according to practice guidelines?

The initial action for a cyanotic newborn at 6 minutes of life should focus on assessing the situation to determine the severity of the condition. Checking the infant's pulse oximeter reading allows the nurse to obtain a quick and objective measurement of the baby’s oxygen saturation level. This assessment is critical to gauge whether the cyanosis is due to a lack of oxygenation and helps inform subsequent interventions.

If the pulse oximeter indicates a low oxygen saturation, the nurse can then proceed to supplemental oxygen if necessary. This systematic approach prioritizes understanding the baby's condition before taking further steps, ensuring that the interventions provided are appropriate based on the clinical findings.

In contrast, administering 100% oxygen without checking the pulse oximeter first may not be warranted if the baby’s saturation levels are acceptable. Performing chest compressions would be indicated only if the infant showed signs of poor perfusion or cardiac arrest, which cannot be determined without prior assessment. Wrapping the infant in additional blankets might provide warmth but does not address the immediate concern of cyanosis and potential hypoxia. Thus, the pulse oximeter reading serves as a crucial step for evidence-based nursing practice in responding to the cyanotic newborn.