Management of Hypokalaemia - Flowchart
Management of Hypokalaemia - Flowchart Management of Hypokalaemia Management of Hypokalaemia
Flowchart

(2) Hypokalaemia (Tables 86.1 and 86.4)

(2) Hypokalaemia (Tables 86.1 and 86.4)

(2) Hypokalaemia (Tables 86.1 and 86.4)

86.1 86.4

ECG, monitor IV access

ECG, monitor IV access

ECG, monitor IV access

End

End

End

Check electrolytes (including magnesium), creatinine, glucose, ECG

Check electrolytes (including magnesium), creatinine, glucose, ECG

Check electrolytes (including magnesium), creatinine, glucose, ECG

IV potassium 40 mmol over 4 h (maximum 20 mmol/h), preferably via central vein, then recheck K+

IV potassium 40 mmol over 4 h (maximum 20 mmol/h), preferably via central vein, then recheck K+

IV potassium 40 mmol over 4 h (maximum 20 mmol/h), preferably via central vein, then recheck K+

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Identify/treat cause (Table 86.4)
Correct coexisting magnesium depletion

Identify/treat cause (Table 86.4)
Correct coexisting magnesium depletion

Identify/treat cause (Table 86.4)
Correct coexisting magnesium depletion

Table 86.4

Review ECG and cardiac rhythm (Table 86.1)


ST depression?
Small T wave, large U wave?

Review ECG and cardiac rhythm (Table 86.1)


ST depression?
Small T wave, large U wave?

Review ECG and cardiac rhythm (Table 86.1)

Table 86.1


ST depression?
Small T wave, large U wave?


ST depression?
Small T wave, large U wave?

Plasma potassium
< 3 mmol/L or
< 3.5 mmol/L with arrhythmia

Plasma potassium
< 3 mmol/L or
< 3.5 mmol/L with arrhythmia


or
Plasma potassium

Plasma potassium
3-3.5 mmol/L

Plasma potassium
3-3.5 mmol/L


Plasma potassium

Oral potassium supplement and/or increase dietary K+ intake
If due to loop diuretic, add spironolactone/amiloride

Oral potassium supplement and/or increase dietary K+ intake
If due to loop diuretic, add spironolactone/amiloride

Oral potassium supplement and/or increase dietary K+ intake
If due to loop diuretic, add spironolactone/amiloride

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