KCl must NEVER be administered via IV push — it can cause fatal cardiac arrest. During KCl infusion, the critical monitoring parameter is urine output (renal function).

Safe KCl infusion requires:

• Urine output \\geq 30 \\text{ mL/hr} — confirms kidneys can excrete excess potassium
• Urine output < 25–30 mL/hr indicates oliguria → STOP infusion immediately (risk of fatal hyperkalemia)
• Maximum peripheral infusion rate: 10 \\text{ mEq/hr}
• Maximum concentration peripherally: 40 mEq/L
• Never administer undiluted KCl

Signs of KCl toxicity/hyperkalemia: peaked T-waves, widened QRS, bradycardia, cardiac arrest. As a Charge Nurse, monitoring IV KCl infusions is a major patient safety responsibility.