A group of nurses conducting a systematic review to identify best practice evidence for hemodialysis...

Randomized controlled trials (RCTs) are considered the highest level of evidence in research because they reduce bias and provide the most reliable results. When conducting a systematic review to identify best practice evidence for hemodialysis in patients with anemia, RCTs should be prioritized. These studies provide strong evidence on the efficacy of interventions. Case-control studies, non-experimentalstudies, and quasi-experimental studies provide valuable information but are considered lower levels of evidence compared to RCTs.