Final answer:
Do not feed a newborn if their respiratory rate is more than 60 breaths per minute as this may indicate a health issue requiring medical attention. Option b is correct.
Step-by-step explanation:
You should not feed a newborn at a respiratory rate more than 60 breaths per minute (b). Newborns normally have a respiratory rate between 30 and 60 breaths per minute. Feeding at a rate higher than this range could indicate respiratory distress or other health issues, requiring medical attention rather than feeding.
Adequate ventilation control is crucial for ensuring that newborns receive the correct oxygen and carbon dioxide exchange, which can be compromised with very high respiratory rates.