Skip to content

The Emergency Medicine Manual

Dunn RJ

  • Home
  • Contents
    • Format 1
    • Format 2
    • How to use the site
    • How to customise your content
    • How to renew your subscription
  • Other features
    • Quizzes
    • OSCE topics
    • ACEM procedure list
    • Calculators
    • Galleries
    • Links
    • Journal scans
      • Emergency Medicine Journals
      • General journals
    • Poll results
    • Videos
  • Take a tour
    • Home page
    • Search function
    • Index
    • Chapter contents
    • Customisable content
    • Quizzes
    • Video content
    • Audio content
    • Image galleries
    • Journal scan
    • Resource links
    • Calculators
    • User guide
    • Editorial panel
    • Summary
  • Help desk
  • My details
  • Log out
  • Buy now

Free water deficit formula

18/09/2026 by Bob Dunn

The Hypernatraemia page has been updated with a more accurate free water deficit formula.

Categories Updates Tags Clinical skills
Hypophosphataemia
0.45% Saline replacement volume formula for hypernatraemia

Current visitors

LOADING...

Contributors
Associate Professor Robert Dunn

Previous contributors
Associate Professor Meredith Borland
Dr Deborah O'Brien
Dr Stuart Dilley
Dr Jennifer Brookes
Associate Professor Deborah Leach

Formula of the day

MgSO4 1 g = 4 mmol = 8 meq

Medical wisdom

The pure and simple truth is rarely pure and never simple. - Oscar Wilde

The version of the Manual I use the most is

View Results

Loading ... Loading ...

Contact us

Venom Publishing, 19A Seaview Road, Tennyson, SA 5022, Australia, venompublishing@bigpond.com, info@temm.com.au, www.venompublishing.com

© 2026 The Emergency Medicine Manual • Built with GeneratePress