PT - JOURNAL ARTICLE AU - Josman, Nicky AU - Tee, Nancy W S AU - Maiwald, Matthias AU - Loo, Liat Hui AU - Ho, Clement K M TI - Pragmatic and evidence-based approach to paediatric cerebrospinal fluid reference limits for white cell count and concentrations of total protein and glucose AID - 10.1136/jclinpath-2018-205090 DP - 2018 Jun 15 TA - Journal of Clinical Pathology PG - jclinpath-2018-205090 4099 - http://jcp.bmj.com/content/early/2018/06/15/jclinpath-2018-205090.short 4100 - http://jcp.bmj.com/content/early/2018/06/15/jclinpath-2018-205090.full AB - Background It is often impractical for each laboratory to establish its own paediatric reference intervals. This is particularly true for specimen types collected using invasive procedures, for example, cerebrospinal fluid (CSF).Methods Published CSF reference intervals for white cell count, and concentrations of total protein and glucose were reviewed by stakeholders in a paediatric hospital. Consensus reference intervals for the three CSF parameters were then subjected to verification using guidelines from the Clinical Laboratory Standards Institute and residual CSF specimens.Results Consensus paediatric reference intervals adapted from published studies with minor modifications were locally verified as follows. White cell count (x106 cells/L): 0–20 (<1 month); 0–10 (1–2 months); 0–5 (>2 months). Total protein (g/L): 0.3–1.2 (<1 month); 0.2–0.6 (1–3 months); 0.1–0.4 (>3 months). Glucose (mmol/L): 2.0–5.6 (<6 months); 2.4–4.3 (6 months or older).