Management of Hypotension Post Iron Sucrose Infusion

Immediate Management Steps

For mild hypotension following iron sucrose infusion, immediately stop the infusion, switch to normal saline at keep-vein-open rate, and administer IV normal saline bolus to maintain systolic blood pressure >100 mmHg 1
Immediately discontinue the iron sucrose infusion and switch the IV line to normal saline at keep-vein-open (KVO) rate, as recommended by the American Journal of Hematology 1, 2
Administer normal saline IV bolus of 1000-2000 mL to maintain systolic blood pressure >100 mmHg, which is the primary intervention for mild hypotension related to iron infusion reactions 1, 2
Avoid first-generation antihistamines (diphenhydramine) and vasopressors, as these can paradoxically convert minor infusion reactions into hemodynamically significant serious adverse events 1
If symptoms persist or worsen after 15 minutes of monitoring, consider IV corticosteroid: Hydrocortisone 200 mg IV (or equivalent) 1

The hypotension is most likely due to complement activation-related pseudo-allergy (CARPA) rather than true IgE-mediated anaphylaxis, according to the American Journal of Hematology 3

Continue monitoring for at least 15 minutes after symptom onset, as most minor infusion reactions, including hypotension, are self-limiting and resolve spontaneously with supportive care 1
Do not discharge until symptoms have completely resolved and vital signs are stable 1

If hypotension was isolated and completely resolved, wait approximately 15 minutes after complete resolution before considering rechallenge, and restart at 50% of the initial infusion rate 1, 2

Use slower infusion rates for patients with previous reactions, as recommended by the American Journal of Hematology 1, 3
Inform patients about possible delayed reactions (flu-like symptoms, arthralgias, myalgias) that can occur hours to days after infusion, which typically last up to 24 hours and are managed with NSAIDs 1

Call emergency services immediately if the patient develops sudden onset with rapid intensification of symptoms, loss of consciousness, severe systemic hypotension, angioedema of tongue/airway, respiratory stridor or wheezing, or involvement of multiple organ systems 1, 2, 3
For true anaphylaxis, administer EPINEPHRINE 0.3 mg IM (1 mg/mL concentration) into the anterolateral mid-third portion of the thigh, as recommended by the Praxis Medical Insights 2