Table 1

- Definition of an inappropriate test.

TestsInappropriate repetitionsReferences
TSHRepeated testing within 8 weeksAACE hypothyroidism guidelines12
Lipid profileRepeated testing within 3 monthsCCS dyslipidemia guidelines13
Vitamin B12Repeated testing within 3 monthsBest practice in primary care pathology14
Vitamin DRepeated testing within 3 monthsOsteoporosis Canada guidelines15

TSH: thyroid-stimulating hormone, AACE: American Association of Clinical Endocrinologists, CCS: Canadian Cardiovascular Society