An evaluation of potassium usage in ambulatory hypertensive patients

Area of Science:

• Cardiology
• Nephrology
• Family Medicine

Background:

• Diuretic therapy is common for hypertension management.
• Potassium supplementation practices for patients on diuretics lack clear evidence.
• Hypokalemia is a potential risk associated with diuretic use.

Purpose of the Study:

• To review potassium monitoring and supplementation habits in hypertensive patients on diuretics.
• To assess the impact of potassium prescribing on serum potassium levels.
• To evaluate the clinical benefit of potassium supplementation in this patient group.

Main Methods:

• Chart review of 134 hypertensive patients receiving diuretic therapy.
• Analysis of serum potassium levels before and after diuretic initiation.
• Comparison of potassium levels and hypokalemia incidence between supplemented and non-supplemented groups.

Main Results:

• 84% of patients had serum potassium monitored.
• Mean potassium levels decreased from 4.1 to 3.8 mEq/liter with diuretic therapy.
• 29% of patients developed hypokalemia (serum potassium ≤3.5 mEq/liter).
• Nearly half of patients received potassium therapy (diet or pharmacologic).
• Little evidence of benefit from potassium prescribing was observed.

Conclusions:

• Current practices for potassium monitoring and supplementation in hypertensive patients on diuretics may not be optimally beneficial.
• Further research is needed to establish evidence-based guidelines for potassium management in this population.
• Individualized assessment of potassium status and risk is recommended.