How to size a clinical chemistry analyzer for your daily test volume

Clinical chemistry analyzers are the backbone of most hospital and reference laboratories, running hundreds to thousands of tests per day. Choosing the wrong throughput class — too small and you create bottlenecks; too large and you pay for capacity you never use.

Understand your daily test volume

Start with 12 months of historical data from your LIS or manual logbooks. Calculate your average daily test volume (ADTV) and your 90th-percentile peak day. Analyzers are rated by tests-per-hour (TPH) under ideal conditions; real-world throughput is typically 70–80% of rated capacity.

Rule of thumb: your analyzer should handle your 90th-percentile peak day within a single 8-hour shift, at 75% of rated TPH — leaving headroom for maintenance cycles, reagent changeovers, and growth.

Match throughput class to volume

Consider reagent and consumable costs

A higher-throughput analyzer often carries a higher reagent kit price. Calculate cost-per-reportable result (CPRR) across your actual test mix — not just the headline price per kit. An apparently cheaper analyzer can cost more per result if reagent yields are lower.

Plan for test menu expansion

Laboratory test menus expand with clinical demand. Ask vendors for a list of tests available on the platform and the roadmap for new assay additions. Reagent rental agreements that lock you to one vendor can limit your flexibility to add tests.

What MCVSIX recommends

For most Philippine district hospitals running 300–800 tests/day, a mid-range chemistry analyzer with an open-reagent option provides the best balance of throughput, cost, and flexibility. Contact our team for a free workload analysis.