Final answer:
The most suitable nursing action for a 7-month-old suspected of having shaken baby syndrome is to document assessment information objectively.
Step-by-step explanation:
In the case of a 7-month-old admitted for suspected shaken baby syndrome, the most appropriate nursing action is to document assessment information objectively (option d). Shaken Baby Syndrome is a serious form of child abuse that results in severe brain damage, and precise, objective documentation is crucial in these cases for medical, legal, and evaluative purposes. Actions such as maintaining low continuous suction or administering morphine may not be relevant or safe in this context, and a child of 7 months old is unlikely to be concerned with maintaining self-image.
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