Approach to Hypokalemia: Diagnosis and Treatment

All causes of hypokalemia can be divided into 3 big groups:

  • Decreased intake (unlikely to be a sole cause)
  • Intracellular shift
  • External loss (GI or renal)

A step-by-step approach to diagnosis of hypokalemia

Step 1: Review current medication history. Drugs that can promote hypokalemia (via intracellular shifting or increased losses/decreased intake):

  • K-deficient fluids
  • loop/thiazide diuretics
  • insulin, dextrose
  • albuterol, terbutaline and other beta agonists
  • catecholamines
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A Tricky Enterococcus

Enterococci are commensal bacteria inhabiting GI tract of animals and humans. It typically emerges in debilitated patients exposed to broad-spectrum antibiotics and as part of polymicrobial infections (especially, GI and/or urogenital). Enterococci are usually part of mixed aerobic and anaerobic flora, and antimicrobial regimens with minimal in vitro anti-enterococcal activity are often effective in treating mixed infections; therefore, the pathogenicity of enterococci in this setting is questionable. These and other factors limit the ability of investigators to determine the independent contribution of enterococcal infections to mortality and morbidity.

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Approach to Hyperkalemia: Diagnosis and Treatment

This blog post commences a series of articles on diagnostic and therapeutic approaches to potassium and sodium derangements. This is meant to be a quick reference/guideline for emergency veterinarians, students and technicians. All readers are welcome to leave feedback and comments below.

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Dysnatremias: The role of urine sodium and osmolality

All living organisms originated in the sea. A constant salt concentration was important to maintain their vital functions. To overcome their dependency on the sea environment, a sophisticated renal system has developed in modern mammals that allows them to maintain a steady concentration of various electrolytes and water balance.

Understanding sodium and water balance is important for clinicians who treat animals with renal disorders, sodium derangements and other critical conditions. Not surprisingly, this topic may appear complex and daunting to the majority of veterinary practitioners.

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