[Metabolic acidosis].

Area of Science:

• Nephrology
• Critical Care Medicine
• Internal Medicine

Background:

• Metabolic acidosis is a common clinical finding, particularly in critically ill patients and those with renal failure.
• Its complex mechanisms are often identifiable through patient history, pathophysiology, and key acid-base parameters.
• Acute forms, like lactic acidosis or diabetic ketoacidosis, can precipitate medical emergencies.

Purpose of the Study:

• To outline a diagnostic strategy for metabolic acidosis.
• To differentiate between high anion gap and normal anion gap metabolic acidosis.
• To guide initial therapeutic interventions.

Main Methods:

• Differential diagnosis initiated by identifying high vs. normal anion gap metabolic acidosis.
• Utilizing medical history, pathophysiology, and accessible acid-base parameters.
• Evaluating concurrent clinical problems and patient status.

Main Results:

• Metabolic acidosis significantly impacts homeostasis and hemodynamics, especially in acute, high anion gap forms.
• Early management prioritizes correcting clinical issues like shock or respiratory failure.
• Severe acidosis necessitates careful consideration of alkalizing agents and potential renal replacement therapy.

Conclusions:

• Bedside diagnosis of metabolic acidosis hinges on distinguishing between high and normal anion gap subtypes.
• Therapeutic strategies involve addressing underlying clinical problems concurrently with diagnosis.
• Management of severe metabolic acidosis requires careful risk-benefit assessment of interventions like alkalization and renal replacement therapy.