Safety, quality & education

Examining Critical Task Performance in Blue and Green Ambient Lighting Environments in Modern Interventional Suites: An Anesthetic Care Perspective

Anesth AnalgPublished Randomised controlled trial

Authors' conclusion

This study demonstrated that ambient blue and green lighting significantly impairs the ability of OR staff to distinguish color hues, compromising color-dependent decision-making.

Study context

Population
OR staff and volunteers at the Royal Brisbane and Women's Hospital, simulated environment266 eligible
Participants
300 participants
Comparison
Blue and green ambient lighting vs white light
Primary endpoint
Task performance (success rates, error rates and completion times) on Farnsworth D-15 Test (FT) and Drug Label Matching Test (DLMT) under blue and green vs white light
Methodological detailscrossover, single-centre
  • Crossover
  • Single-centre

Primary result

As reported in the abstract

FT success

Secondary outcomes

FT completion time

DLMT completion time — Blue vs White · significantly faster under white light

P < 0.001

OutcomeOdds of an error (95% CI)P value
DLMT completion timeGreen vs White · significantly faster under white lightP < 0.001
DLMT failure (error)Blue/green vs White · failure rates significantly higher under blue/green3.67 (1.05–12.87)P = 0.033

Drug label features relied on for identification

Reliance on color, white to blue/green
96.6% to ≈41%-42.5%
Use of drug names, white to blue/green
76.3% to ≈80%-83%
Grouping, white to blue/green
8.3% to ≈50%-56.8%
Memory, white to blue/green
0.4% to ≈42%-45%

Original publication

Examining Critical Task Performance in Blue and Green Ambient Lighting Environments in Modern Interventional Suites: An Anesthetic Care Perspective. Anesth Analg. Published 25 August 2025. doi:10.1213/ane.0000000000007696

Composed by AI from the published abstract and checked against it. How Briefs are made →

Get them every week

New studies on this topic in My Week and in your Monday e-mail.

We e-mail you a sign-in link and a code. No password, no spam.