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 Best of Five 3.96

 

   

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BOF: 3.96

A healthy 47-year-old male was found to have a serum potassium of 6.5 mmol/L when he had blood sent for a medical check up by his GP. The blood sample was not haemolysed.

He was admitted to the emergency admission unit but on admission his serum potassium was found to be 4.5 mmol/L

There were no ECG changes; he was not on any medication.

What is the most likely cause of this phenomenon?

a)      Pseudohyperkalaemia

b)      Laboratory error

c)      Acute renal failure

d)      Chronic renal impairment

e)      Excessive dietary potassium intake

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