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Related Experiment Videos

Metabolic alkalosis.

A Khanna1, N A Kurtzman

  • 1Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas, USA.

Journal of Nephrology
|June 1, 2006
PubMed
Summary
This summary is machine-generated.

Metabolic alkalosis results from excess bicarbonate or acid loss, impacting kidney function and various body systems. Understanding its causes and maintaining acid-base balance are key to effective treatment.

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Area of Science:

  • Nephrology
  • Physiology
  • Biochemistry

Background:

  • Metabolic alkalosis is a disorder of acid-base balance.
  • It involves the gain of bicarbonate or loss of nonvolatile acid.
  • The kidney plays a crucial role in maintaining acid-base homeostasis through bicarbonate reabsorption and generation.

Purpose of the Study:

  • To elucidate the pathophysiological mechanisms of metabolic alkalosis.
  • To identify factors influencing bicarbonate handling by the kidney.
  • To outline clinical manifestations and treatment strategies for metabolic alkalosis.

Main Methods:

  • Review of renal physiology concerning acid-base balance.
  • Analysis of factors affecting bicarbonate reabsorption and generation.

Related Experiment Videos

  • Examination of clinical conditions associated with metabolic alkalosis.

    • Main Results:

    • Bicarbonate reclamation occurs in the proximal tubule (Na-H antiporter, H-ATPase).
    • Bicarbonate regeneration is influenced by distal sodium delivery, aldosterone, and arterial pH/pCO2.
    • Factors maintaining alkalosis include decreased GFR, volume contraction, hypokalemia, hypochloremia, and aldosterone excess.

    Conclusions:

    • Metabolic alkalosis arises from base gain or acid loss (GI or renal).
    • Clinical states include vomiting, diuretic use, and mineralocorticoid excess.
    • Treatment involves addressing underlying causes and may include specific therapies for severe cases.