Final answer:
The priority nursing intervention for a client with hypertonic uterine dysfunction is to provide pain relief measures.
Step-by-step explanation:
The priority nursing intervention for a client with hypertonic uterine dysfunction experiencing uncoordinated contractions is to provide pain relief measures. Hypertonic uterine dysfunction is characterized by erratic contractions that are irregular in frequency, duration, and intensity. These uncoordinated contractions can cause intense pain and discomfort for the client.