Anatomy & Physiology › Section X · Fluid, electrolyte, and acid-base balance › Topic X.3
Electrolyte balance
A few dissolved ions decide where body water sits, whether nerves and heart muscle can fire, and how blood clots. This topic covers the six most important electrolytes, the units used to measure them, and the hormones that hold each one in range.
In this topic
- Electrolytes and their jobs
- Units: mmol/L and mEq/L
- Worked example: converting calcium units
- Sodium
- Worked example: estimating plasma osmolality
- Potassium
- Chloride and bicarbonate
- Calcium and phosphate
- Hormones for sodium and potassium
- Common mistakes to avoid
- Key takeaways
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