Intended for healthcare professionals

Letters Reducing routine inpatient blood testing

Authors’ reply to Smith, Johnson, and Gray and Jani

BMJ 2023; 380 doi: (Published 03 January 2023) Cite this as: BMJ 2023;380:o3042
  1. William K Silverstein, general internal medicine fellow1 2,
  2. Adina S Weinerman, medical director of quality and patient safety, assistant professor14,
  3. Cindy Dumba, patient and public adviser2,
  4. Christopher Moriates, assistant dean for healthcare value, associate professor of internal medicine5 6,
  5. Karen Born, assistant professor7
  1. 1Department of Medicine, University of Toronto, Toronto, ON, Canada
  2. 2Choosing Wisely Canada, Toronto
  3. 3Division of General Internal Medicine, Sunnybrook Health Sciences Centre, Toronto
  4. 4Centre for Quality Improvement and Patient Safety, University of Toronto
  5. 5Department of Internal Medicine, Dell Medical School, University of Texas at Austin, Austin, TX, USA
  6. 6Costs of Care, Boston, MA, USA
  7. 7Institute of Health Policy, Management & Evaluation, Dalla Lana School of Public Health, University of Toronto
  1. William.Silverstein{at}

We thank Smith, Johnson, and Gray and Jani for their responses.123 Our intent was to highlight the harms associated with a common form of overuse—routine and repetitive blood testing performed on stable inpatients.4 By this, we mean blood tests that are ordered for stable inpatients on a regular basis, without a specific clinical question in mind. The 2021 National Minimum Retesting Intervals …

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