Final answer:
The priority for a nurse caring for a patient receiving hemodialysis is the frequent monitoring of vital signs to ensure patient stability and the early detection of complications.
Step-by-step explanation:
The priority action for a nurse caring for a patient receiving hemodialysis is to record the vital signs every 30 to 60 minutes. This is crucial as it helps to monitor the patient's stability and detect any sudden changes that could indicate serious complications, such as hypotension or cardiovascular events. While it is also important to check the patient's skin condition and weight before and after the procedure, closely monitoring vital signs throughout hemodialysis is essential for the immediate detection and response to potential life-threatening situations.