3. Physiology
        3.12. Renal
            3.12.8. Renal regulation of potassium
3.12.8.1. Potassium

Potassium

[KB2:p15-16]

Total K+ in body
= 40-45mmol/kg

 

Body distribution

ICF = 90%

ECF = 2%

Bone = 8%

 

Measurement of total body potassium

Isotope 44K
* Used to measure total body potassium, including bone
* Naturally occurring

Isotope 42
* Injected to measure total exchangeable potassium pool, excluding bone

 

Treatment options

IV calcium

For severe hyperkalemia

Glucose and insulin

Sodium bicarbonate

Resonium

Dialysis

????Salbutamol

 

 

Other notes

During exercise

 

Buffering

[K+] and [H+]



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