Hypokalaemia
Definitions
Causes
Symptoms
Often asymptomatic
Symptoms include:
Tests
Management
Identify and treat the underlying cause
Oral potassium supplements*
Oral supplementation is well absorbed, but large doses limited by nausea and vomiting
Mild: Sando-K (12mmol each) – 1 tablet three times a day
Moderate: sando-K 2 tablets three times a day
Prescribe for a max of 3 days then review
Other K+ supplements only after discussion with renal
Provide advice on potassium rich foods e.g bananas, apricots, dark chocolate
For longer term management of recurrent hypokalaemia discuss with medical team
When to admit
Severe hypokalaemia (<2.5mmol/L)
Failure to improve on oral supplements
Consider if appropriate to attend SDEC for IV replacement if needed
Any other clinical concerns
Author: Dr Chris Bell, Feb 2023