3. Physiology
        3.4. General physiology
            3.4.6. Electrolytes
3.4.6.2. Magnesium

Magnesium

[Ref: KB2:p17]

Reference range

[HH26:p416]

[KB2:p17]

 

Function

1. Act as cofactors or catalyst

2. Effects on nerves and muscles

NB:

Increased [Mg2+]
--> Potentiation of succinylcholine and non-depolarising relaxant blockade

3. Effecs on smooth muscles

4. Others

 

 

Hypermagnesaemia

Usually asymptomatic until Mg2+ > 4mmol/L

Main abnormality
= Neuromuscular transmission becomes impaired

Early symptoms

Serum levels

NB:

 

 

 



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