Final answer:
Visual assessment of cyanosis is not a reliable indicator of a baby's oxygen saturation.
Step-by-step explanation:
Visual assessment of cyanosis is not a reliable indicator of a baby's oxygen saturation. Cyanosis is a bluish discoloration of the skin due to reduced oxygen in the blood. While cyanosis can be a sign of low oxygen levels, it can also be caused by other factors such as poor circulation or certain medications.
A more accurate and objective measure of a baby's oxygen saturation is through the use of a device called a pulse oximeter. A pulse oximeter measures the amount of oxygen in the blood by using light sensors.
Therefore, option 1 is true.