Dictionary » H » Hypokalaemia



(Science: biochemistry) Abnormally low potassium concentration in the blood, it may result from potassium loss by renal secretion due to renal disease or drug actions or by gastrointestinal loss due to vomiting or diarrhoea.

It may be manifested clinically by neuromuscular disorders ranging from weakness to paralysis, by electrocardiographic abnormalities (depression of the t wave and elevation of the u wave).

Severe hypokalaemia can result in cardiac arrhythmias and death.

Origin: gr. Haima = blood

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How can hypokalaemia lead to increased pacemaker rate?

If there is deficiency in K+ outside the cell, aint the K+ in the cells going to rush out rapidly during repolarisation, causing the a even more negative membrane potential?and woluldnt this be causing a longer time for the cell to reach the threshold for the next action potential and hence leading ...

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by jning
Tue Sep 23, 2008 7:07 am
Forum: Human Biology
Topic: How can hypokalaemia lead to increased pacemaker rate?
Replies: 1
Views: 1448

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