Customer Service Delivery in Clinical Laboratories: Challenges, Innovations, and Policy Directions for Strengthening Quality Management Systems in Nigeria.

Background: Clinical laboratories are central to healthcare delivery in Nigeria, yet service quality is frequently undermined by infrastructural deficits and weak quality management systems (QMS). Beyond technical accuracy, customer experienceis critical to patient trust and treatment adherence. Persistent challenges such as unstable power supply, workforce shortages, and the absence of mandatory accreditation continue to erode public confidence. This review synthesizes these systemic challenges and evaluates the intersection of QMS and customer service to propose actionable reforms for the national laboratory network. Methodology: A narrative synthesis was conducted on literature published between January 2010 and October 2025. Searches in PubMed, Google Scholar, and African Journals Online identified 317 records. Following a PRISMA-based screening process, 68 articles were eligible, and 36 were purposively selected for thematic synthesis. Data were analyzed to classify findings into systemic challenges, innovations, and policy recommendations using a quality appraisal matrix. Results: Service delivery was found to be severely constrained by structural barriers, including over 90% reliance on unstable national power grids and a critical workforce shortage, with ratios as low as one laboratory scientist to 5,000 individuals. These deficits drive process failures such as poor adherence to Standard Operating Procedures and low accreditation uptake, resulting in prolonged turnaround times and weak patient communication. Conversely, innovations including Laboratory Information Management Systems, Point-of-Care Testing, and the WHO-AFRO SLIPTA program demonstrated measurable improvements in error reduction and patient satisfaction. Conclusion: Improving customer service in Nigerian clinical laboratories requires a paradigm shift that positions patient experience as a core component of quality assurance. Sustainable improvement depends on competency-based licensing, mandatory accreditation for tertiary facilities, and strategic infrastructure investment to integrate customer-centered practices within robust QMS frameworks.