The nurse is assessing a client during the first stage of labor. Which action is correct when evaluating the characteristics of uterine contractions? -Place a hand on the abdomen below the umbilicus and palpate uterine tone with fingertips. -Evaluate intensity by pressing fingertips into the uterine fundus. -Assess uterine contractions every 30 minutes throughout the first stage of labor. -Determine frequency by timing the end of one contraction until the end of the next contraction.