Final answer:
The client should measure and record the amount of drainage every 8 hours.
Step-by-step explanation:
The correct answer is d. I will measure and record the amount of drainage every 8 hours. This statement indicates that the client understands the proper care for the Hemovac drain. It is important to measure and record the amount of drainage regularly to monitor the client's progress and to identify any abnormal changes. This information can help healthcare providers assess the client's condition and make appropriate adjustments to the treatment plan if needed.