What is the role of electrolytes and renal function tests in hip fracture management?

• A. To evaluate overall health and surgical risk.
• B. To assess electrolyte balance and hydration status.
• C. To determine blood type for transfusion.
• D. To screen for liver disease.

Answer: (B)

The main concept is that electrolytes and kidney function tests are used to gauge fluid and electrolyte status before surgery and to assess baseline renal function. In hip fracture patients, especially older adults, dehydration and electrolyte disturbances are common and can significantly affect perioperative risk. Abnormal electrolyte values (such as imbalances in sodium, potassium, or bicarbonate) can cause arrhythmias, hypotension, or delayed recovery, while impaired kidney function influences drug dosing, fluid management, and the risk of acute kidney injury after surgery. By identifying and correcting these issues preoperatively, clinicians optimize hemodynamics, tailor fluid therapy, and adjust medications to reduce complications. The tests aren’t primarily for blood type or liver disease screening, which are addressed by other assessments.