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Dunn RJ

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Recent updates

  • Albumin corrected calcium calculation is no longer recommended 22/09/2026
  • Large bore peripheral IV cannulae 22/09/2026
  • Substances to avoid giving through a peripheral IV line 22/09/2026
  • Intraosseous access 22/09/2026
  • US guided vascular access 22/09/2026
  • Analytical errors in biochemistry 18/09/2026
  • Sodium measurement 18/09/2026
  • Hypernatraemia 18/09/2026
  • 0.45% Saline replacement volume formula for hypernatraemia 18/09/2026
  • Free water deficit formula 18/09/2026
  • Hypophosphataemia 18/09/2026
  • Normal serum phosphate levels 18/09/2026
  • Transient synovitis 18/09/2026
  • 8.4% NaHCO3 for severe hyponatraemia 10/09/2026
  • Osmotic demyelination syndrome 10/09/2026
  • Stroke prevention in AF 10/09/2026
  • LAA occlusion in AF 10/09/2026
  • Device detected AF 10/09/2026
  • Limitations of the CHA2DS2VA score 05/09/2026
  • CHA2DS2VA and stroke risk table 05/09/2026
  • Atrial fibrillation stroke risk 05/09/2026
  • Minimum O2 flow rate through a Hudson mask is 5L/min. 05/09/2026
  • Blood gas calculations require PaCO2 or PaO2 values, not venous PCO2 or PO2 values 05/09/2026
  • PaO2 and PaCO2 05/09/2026
  • Ensuring extent of neuromuscular paralysis is measured and reversed prior to extubation 02/09/2026

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AbdominalCardiologyClinical skillsConnective tissueDermatologyEndocrinologyENTEnvironmentalEye disordersGynaecologyHaematologyIDImmunologyManagementMental healthNeurologyObstetricsOrthopaedicsPaediatricsPrehospitalQuizResearchRespiratoryResuscitationSoft tissueToxicologyTraumaUrologyVascular

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Contributors
Associate Professor Robert Dunn

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

Formula of the day

Delta ratio: = (AG – 12)/(24 - [HCO3-])

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Data is not information, information is not knowledge, knowledge is not understanding, understanding is not wisdom. - Clifford Stoll

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