Estimating the Weight of Children During Simulated Emergency Situations Using the Broselow Tape: Are We Underestimating the Risks of Errors?

OBJECTIVE: The objective of this study was to evaluate whether residents can accurately estimate children's weight using the Broselow tape. METHOD: We conducted a preplanned secondary analysis from an experimental trial. Participants were residents in pediatrics, family medicine, and emergency medicine rotating in the ED. Residents were randomly assigned to 2 sets of paired scenarios during 2 sessions. They were asked to estimate the weight of a manikin using the Broselow tape at the beginning of each scenario. The first scenario from the initial session and the last scenario from the second session were used for the current study. The primary analysis was the proportion of participants who accurately estimated manikin weight within a 10% margin of error. RESULTS: Forty residents were recruited. Thirty-two (80%) reported knowledge of the Broselow tape and 13 (32.5%) reported previous use. Weight estimation was accurate in 60% (24/40; 95% confidence interval [CI], 45%-74%) during the first scenarios. Error in weight estimation differed by greater than 25% in 28% (11/40). Error in estimation was not associated with previous knowledge (odds ratio, 6.2; 95% CI, 0.68-56) or previous use (odds ratio, 0.9; 95% CI, 0.23-3.5) of the Broselow tape. In the last scenario, 88% accurately estimated manikin weight (35/40; 95% CI, 73%-95%). CONCLUSIONS: Although most residents reported knowledge of the Broselow tape, 40% made erroneous weight estimations by at least 10% with the first use in this simulation study. With repeated use, they improved significantly over time. Teaching appropriate use of the Broselow tape should be part of residency-training curricula and pediatric advanced life support course.

Decreasing Prescribing Errors During Pediatric Emergencies: A Randomized Simulation Trial.

OBJECTIVE: To evaluate whether a clinical aid providing precalculated medication doses decreases prescribing errors among residents during pediatric simulated cardiopulmonary arrest and anaphylaxis. METHODS: A crossover randomized trial was conducted in a tertiary care hospital simulation center with residents rotating in the pediatric emergency department. The intervention was a reference book providing weight-based precalculated doses. The control group used a card providing milligram-per-kilogram doses. The primary outcome was the presence of a prescribing error, defined as a dose varying by ≥20% from the recommended dose or by incorrect route. Residents were involved in 2 sets of paired scenarios and were their own control group. Primary analysis was the difference in mean prescribing error proportions between both groups. RESULTS: Forty residents prescribed 1507 medications or defibrillations during 160 scenarios. The numbers of prescribing errors per 100 bolus medications or defibrillations were 5.1 (39 out of 762) and 7.5 (56 out of 745) for the intervention and control, respectively, a difference of 2.4 (95% confidence interval [CI], -0.1 to 5.0). However, the intervention was highly associated with lower risk of 10-fold error for bolus medications (odds ratio 0.27; 95% CI, 0.10 to 0.70). For medications administered by infusion, prescribing errors occurred in 3 out of 76 (4%) scenarios in the intervention group and 13 out of 76 (22.4%) in the control group, a difference of 13% (95% CI, 3 to 23). CONCLUSIONS: A clinical aid providing precalculated medication doses was not associated with a decrease in overall prescribing error rates but was highly associated with a lower risk of 10-fold error for bolus medications and for medications administered by continuous infusion.