Final answer:
The nurse should ensure privacy and maintain a warm room temperature for the postpartum assessment.
Step-by-step explanation:
The nurse should plan to ensure privacy and maintain a warm room temperature for the postpartum assessment of the client who gave birth 5 hours ago. This precaution is important to create a comfortable and conducive environment for the assessment. Privacy allows the client to feel more comfortable and secure, while a warm room temperature helps to relax the client's muscles and promote a sense of well-being.