http://www.nice.org.uk/guidance/cg174
The NICE clinical guideline 'Intravenous fluid therapy in
adults in hospital' (CG174) recommends daily serum chloride monitoring in
patients receiving intravenous fluids with chloride concentrations greater than
120 mmol/L, including 0.9% ('normal') saline.
To facilitate this, all inpatient requests for serum
electrolyte and creatinine measurements will automatically also have a serum
chloride measured and reported.
Up until now chloride has been something of an obscure
add-on. Generally chloride levels go up and down with sodium levels, so
measuring chloride is a good way to spot an “iffy” sample.
Having said that, I really need to bone up on the topic.
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