Final answer:
The nurse should first tend to the client with the PCA pump containing morphine because it presents a potential for immediate harm and requires immediate attention, as opposed to the non-urgent needs of the other clients.
Step-by-step explanation:
When determining which client a nurse should address first at the start of a shift, it's essential to prioritize care based on the urgency and potential for harm to the client. In this scenario:
- A client who needs assistance with a bath is a routine care need and does not require immediate attention.
- A client requesting a referral for home health services requires planning and coordination which is important but not acutely time-sensitive.
- A client asking about his PCA pump that contains morphine may have a pressing need either due to issues with medication delivery or potential side effects, which can be critical given the nature of the medication.
- A client who has questions about his new prescription is seeking important information but this does not constitute an immediate health risk.
Therefore, the nurse should prioritize the client with the PCA pump containing morphine, as it poses a potential for immediate harm and requires urgent attention.