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Evidence to Improve Care

Chloride Testing


Ontario Health Technology Advisory Committee Recommendations

  • The Ontario Health Technology Advisory Committee recommends that chloride be removed from the Ontario laboratory requisition form.

Read the full OHTAC Recommendation report



Chloride is an electrolyte (a salt) that can be measured in the blood. Chloride levels are often tested, along with other electrolytes, such as potassium and sodium. The number of chloride tests performed in Ontario community laboratories rose from about 3 million in 2005/06 to about 4 million in 2011/12.


Health Quality Ontario Reviews Chloride Testing

Health Quality Ontario talked to experts to find out whether chloride testing in community-based laboratories is helpful.


Chloride Testing in Community-Based Laboratories: An Expert Consultation (PDF)
June 2013


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The Ministry of Health and Long-Term Care has accepted this recommendation.

The Ministry of Health and Long-Term Care has provided the following response: The chloride test was removed from the Ontario Laboratory Requisition form in January 2013.




Health Technology Assessment at Health Quality Ontario

As part of our core function to promote health care supported by the best available evidence, we use established scientific methods to analyze the evidence for a wide range of health interventions, including diagnostic tests, medical devices, interventional and surgical procedures, health care programs and models of care. These analyses are informed by input from a range of individuals, including patients and clinical experts. The Ontario Health Technology Advisory Committee (OHTAC) — a committee of the Health Quality Ontario board of directors — reviews the evidence and makes recommendations about whether health care interventions should be publicly funded or not. Draft recommendations are posted on the Health Quality Ontario website for feedback. Final recommendations are approved by our board of directors and then shared with the Ministry of Health and Long-Term Care. For more detailed information, visit our Evidence to Improve Care pages.


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