Content governance
Editorial Policy
This policy explains how MedMaths calculator pages are written, sourced, reviewed, dated, tested, and corrected.
Last reviewed: 11 July 2026
Authorship and review labels
Each calculator or topic page identifies its author and the date it was last reviewed. A named clinical reviewer is displayed only when a separate person has completed that review.
A last-reviewed date means the page content, formula presentation, examples, links, and safety wording were checked at that time. It does not mean the calculator replaces current medicine-specific guidance.
Sources and formula references
Recognised equations are checked against primary publications, professional guidance, government or health-service resources, university education material, open textbooks, or other authoritative references where practical.
References are selected to show the calculation method transparently. The source list does not turn a general arithmetic calculator into a medicine-specific prescribing or administration protocol.
Calculation and safety checks
Calculator changes are tested with known input-and-output cases, unit checks, invalid-input checks, and review of the displayed working. Higher-risk areas receive additional prompts for issues such as concentration, drop factor, dose frequency, measurement limits, or final-volume meaning.
Safety text is written to clarify what remains outside the calculator, including patient assessment, maximum doses, contraindications, compatibility, stability, route, technique, local policy, and independent double checks.
Updates and review timing
Pages are reviewed when a calculator is rebuilt, a formula or explanation changes, a material source is updated, or a reported issue requires correction. Review dates are updated only when the page has actually been checked.
There is no claim that every linked external page is continuously monitored. Broken or changed sources are corrected when identified.
Corrections and concerns
Reports of incorrect arithmetic, unclear wording, unsafe presentation, broken links, or accessibility problems are prioritised. A calculator may be amended or temporarily removed when a material issue cannot be resolved immediately.
To report a concern, include the calculator name, the values entered, the result shown, the expected result, and the reference or reasoning supporting the correction.
Medical safety position
MedMaths provides calculation support and education. It does not prescribe medicines, validate orders, choose a preparation method, confirm patient suitability, or replace current product information, clinical references, pharmacy advice, local policy, and professional judgement.