Which lab finding indicates worsening maternal status?

Which lab finding indicates worsening maternal status?

• A. Rising lactate (>2)
• B. Decreasing lactate
• C. Elevated bicarbonate
• D. Normal creatinine

Answer: (A)

Rising lactate signals worsening maternal status because it reflects tissue hypoperfusion and a shift to anaerobic metabolism. When organs don’t receive enough oxygen, cells produce more lactate, causing levels to climb. A lactate above about 2 mmol/L is an abnormal, early warning of poor perfusion and possible progressing shock or sepsis, guiding urgent resuscitation. If lactate trends downward, that indicates improving perfusion and response to treatment. Elevated bicarbonate would more likely point to metabolic alkalosis or a compensatory response in other contexts, not a marker of worsening perfusion in this setting. Normal creatinine doesn’t indicate deterioration; kidney injury can occur with perfusion failure, and creatinine can stay normal early, so it’s less reliable for signaling worsening status.

Rising lactate signals worsening maternal status because it reflects tissue hypoperfusion and a shift to anaerobic metabolism. When organs don’t receive enough oxygen, cells produce more lactate, causing levels to climb. A lactate above about 2 mmol/L is an abnormal, early warning of poor perfusion and possible progressing shock or sepsis, guiding urgent resuscitation.

If lactate trends downward, that indicates improving perfusion and response to treatment. Elevated bicarbonate would more likely point to metabolic alkalosis or a compensatory response in other contexts, not a marker of worsening perfusion in this setting. Normal creatinine doesn’t indicate deterioration; kidney injury can occur with perfusion failure, and creatinine can stay normal early, so it’s less reliable for signaling worsening status.