Laboratory test inappropriateness: lessons revisited and clarified in seven questions

The objective of this review article is to address the most frequently asked questions that pathologists and primary care physicians might face when dealing with laboratory test inappropriateness. More specifically, the article discusses the causes behind request inappropriateness, reasons to reduce such inefficiency, strategies to correct it, and a practical pathway to design and establish them to identify and correct the problem and to monitor success after interventions. We include data from the Spanish REDCONLAB working group and discuss insights for the future.