How Alberta Canada restricts Vitamin D testing
LESS IS MORE, Testing Vitamin D Levels and Choosing Wisely
JAMA Internal Medicine - Research Letter | May 23, 2016
Robert Ferrari, MD, MSc (Med), FRCPC1,2; Connie Prosser, PhD, FCACB3
JAMA Intern Med. Published online May 23, 2016. doi:10.1001/jamainternmed.2016.1929

The study by Rosenberg et al1 illustrates how difficult it may be to achieve substantial reductions in unnecessary testing despite extensive awareness and publication of recommendations from the Choosing Wisely campaign. It may be that, rather than education, physicians need implementation tools built into the system of ordering laboratory or radiologic tests. Examples of this can be a priori criteria introduced onto the laboratory requisition form for a given test (ie, minimal criteria must be met for the test to be ordered), frequency-based restrictions (eg, a test cannot be ordered more often than every 3 months, with the timing of the most recent test monitored by the laboratory), or simply placing the test on a separate ordering form so that it is not captured in a carte blanche approach to test ordering.
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