Begin labetalol infusion at 2 mg/min. Monitor blood pressure (BP) every 5 minutes.
If BP doesn’t decrease sufficiently after 10 minutes (target reduction is typically 20-25%), increase the infusion rate by 2 mg/min. Continue this titration process, increasing by 2 mg/min increments every 10-15 minutes as needed until the desired BP is achieved, or the maximum infusion rate of 8 mg/min is reached.
Closely observe for hypotension. If systolic BP drops below 90 mmHg or the patient experiences symptomatic hypotension (dizziness, lightheadedness), immediately decrease the infusion rate by 1-2 mg/min.
Adjust the rate based on the patient’s response. Some patients may require less labetalol to achieve target BP, while others might need higher doses within the safe limits. Always prioritize patient safety and individual variability.
Once the target BP is reached, maintain a constant infusion rate. Regularly monitor BP every 30-60 minutes to maintain BP within the target range and to detect any potential rebound hypertension after the initial reduction.
Maintain continuous ECG monitoring for bradycardia. If heart rate falls below 50 bpm, reduce the labetalol infusion rate or temporarily discontinue it. Closely collaborate with the attending physician to manage any significant fluctuations in BP or heart rate.
Document all infusion rate adjustments, BP readings, and heart rate measurements throughout the titration process.
