Final answer:
A blood pressure consistently below baseline is the client information that should indicate to the nurse that an older adult client requires re-evaluation of the IV therapy prescription.
Step-by-step explanation:
When a nurse on a medical-surgical unit is reviewing the medical record of an older adult client who is receiving IV fluid therapy, the information that should prompt a re-evaluation of the IV therapy prescription is a blood pressure consistently below baseline. This can indicate that the IV fluid therapy may be contributing to an imbalance, potentially causing hypotension which can lead to various complications. An albumin level within the normal range would generally not be cause for concern regarding IV fluid therapy. A urine output above baseline may indicate adequate kidney function or a response to fluids after dehydration, and a heart rate of 60 beats per minute can be normal for some adults, particularly if they are physically fit or on medications such as beta-blockers.