Physician’s WeeklyMoving Beyond Lactate-Guided Resuscitation in Critical Care

Serum lactate has guided critical care resuscitation for decades, but emerging trial data suggest lactate-targeted strategies cause harm. The ANDROMEDA-SHOCK trial found lactate-guided resuscitation led to excess fluid administration, organic injury, and a >90% probability of increased mortality versus capillary refill time-guided care.

🩺 Clinical Considerations

• Elevated lactate reflects catecholamine-driven glycolysis, not necessarily tissue hypoxia, making it an unreliable perfusion marker in sepsis and cardiogenic shock
• Routine lactate rechecks every 3–4 hours with fluid escalation in response likely worsen outcomes and increase costs without clinical benefit
• ANDROMEDA-SHOCK II confirmed that personalized hemodynamic profiling paired with capillary refill assessment produced faster illness resolution than lactate targets
• Beta-agonist therapy independently raises lactate via Na⁺/K⁺-ATPase upregulation, complicating interpretation in cardiac patients on inotropes

🎯 Practice Applications

• Replace routine serial lactate checks with hemodynamic and capillary refill assessment
• Reassess fluid resuscitation protocols that use lactate elevation as the primary trigger
• Educate team that elevated lactate in catecholamine-treated patients may reflect adaptation, not failure
• Document clinical rationale when escalating vasopressors in the setting of rising lactate

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