Final answer:
A blood pressure of 76/58 mm Hg would require immediate action by the nurse as it indicates hypotension.
Step-by-step explanation:
Among the given options, the finding that would require immediate action by the nurse is a blood pressure of 76/58 mm Hg. This blood pressure reading indicates hypotension (low blood pressure), which can be a sign of inadequate perfusion to the organs and tissues. The nurse should take immediate action by assessing the client's condition, adjusting the CVVH parameters if necessary, and notifying the healthcare provider for further intervention.
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