Calculates a simplified apparent strong ion difference as sodium plus potassium minus chloride.
Formula
value = sodium + potassium - chloride
What this calculator does
Calculates a simplified apparent strong ion difference as sodium plus potassium minus chloride.
Clinical use
This is a simplified electrolyte difference, not a complete Stewart acid–base analysis.
Important limitations
Label simplified SID calculations clearly so they are not mistaken for models incorporating calcium, magnesium, lactate and other ions.
References
- Use current equine medicine references, local protocols and patient-specific veterinary judgement.