Quality Management to Improve CSF Gram Stain Turnaround Time

Area of Science:

• Clinical Microbiology
• Laboratory Medicine
• Quality Improvement Science

Background:

• Cerebrospinal fluid (CSF) Gram stains offer rapid diagnostic information for meningitis.
• Workflow inefficiencies were identified, leading to delays in CSF Gram stain result reporting.
• A quality management program was initiated to address these TAT issues.

Purpose of the Study:

• To evaluate the impact of a quality management program on CSF Gram stain turnaround time (TAT).
• To identify and rectify workflow gaps affecting diagnostic result reporting.
• To improve the efficiency of meningitis diagnosis through faster TAT.

Main Methods:

• Retrospective review of 6913 CSF specimens for bacterial culture TAT (August 2016 - July 2020).
• Prospective monitoring of CSF Gram stain TAT initiated in January 2019.
• Implementation of monthly TAT reviews, shift hand-off sheets, and pre/post-shift checks in April 2019.

Main Results:

• CSF samples with TAT > 60 minutes decreased from 27.3% to 9.89% (P < 0.0001).
• Median TAT decreased by 9 minutes (P < 0.0001), with reduced variability.
• Improvements were sustained across all shifts and transitions.

Conclusions:

• A monthly quality metric effectively tracked CSF Gram stain TAT.
• Workflow modifications successfully identified and addressed TAT barriers.
• Significant TAT improvements were achieved without requiring costly interventions.