The Difficult Airway App3.3 - App Store
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Publisher Description
The Difficult Airway App (v.3.3)
The Difficult Airway App(TM) is an essential tool for clinicians who manage emergency airways in any setting: the ED, ICU, in-patient unit or the many EMS practice environments.
THE RIGHT DRUGS, THE RIGHT DOSES, THE RIGHT WAY!
This app rapidly and easily selects the right drugs for RSI, automatically adjusting for obesity and hemodynamics. Pediatric dosing and equipment selection is a snap using the Broselow-Luten color system or the child's estimated weight.
Stay out of trouble! The Difficult Airway App(TM) guides the user quickly and easily through important algorithms, predictors of the difficult airway, and the step-by-step approach to RSI taught in The Difficult Airway Course: Emergency(TM).
The Difficult Airway App(TM) features:
EASY, YET SOPHISTICATED ADULT AND PEDIATRIC DRUG DOSING
. For adult dosing, a few simple clicks bring you to recommended doses that incorporate patient weight, body habitus and hemodynamics.
. The pediatric drug dosing function incorporates the color-coded system created by James Broselow, MD and Robert C. Luten, MD for rapid, safe management of pediatric airway cases.
. The option to customize your formulary means that only the drugs you use will appear in the recommendations.
DECISION-MAKING SUPPORT
. Straight-forward algorithms allow you to quickly determine the best approach to your patient’s airway.
. Easy mnemonics walk you through predictors of a difficult airway, including difficult laryngoscopy (LEMON), difficult BMV (ROMAN), difficult extraglottic device use (RODS) and difficult cricothyrotomy (SMART).
. Pearls of wisdom, based on evidence and expert opinion, are offered throughout.
RAPID SEQUENCE INTUBATION
. The 7 - Ps of RSI: a step-by-step guide for adult and pediatric patients.
. Adult and pediatric RSI drug dosing.
EDUCATIONAL RESOURCES
. Richly detailed illustrations of the airway anatomy.
. Links to information about The Difficult Airway Courses(TM).
Created by Ron M. Walls, MD, Michael F. Murphy, MD and Robert C. Luten, MD. With significant updates by Calvin A. Brown III, MD.
Version History Age Rating updates. 3.3 Jan 5 Improved navigation for difficult airway prediction. Delivers 7Ps for Intubation checklist; enhanced adult and pediatric RSIs; improved dosage calculator to bring up to date with current recommendations; updated airway algorithms. 3.2 05/23/2024 Improved User Experience (UX) on the Welcome Screens and the App Registration Form (optional). 3.1 08/05/2022 The overall look of The Difficult Airway App has been refreshed with a new color scheme and updated navigation. There are minor changes in the SCh Hyperkalemia, Tips & Pearls, Adult 7Ps, Pediatric 7Ps, and Additional Resources sections. A new Acronym Section has been added to define the acronyms used in the app.
On the Adult Patient RSI Calculator, the following adjustments have been made:
- Midazolam will no longer be recommended as an Induction Agent.
- All induction agents are now tagged as “Total Body Weight” drugs unless the patient is obese or morbidly obese, then the induction agents are tagged as “Lean Body Weight” drugs.
- Refined dosing for Propofol based on body habitus.
- Ketamine dosing has been decreased for hypotension.
- The base dose for Rocuronium has been changed from 1 mg/kg to 1.5 mg/kg for NMBA dosing recommendations. 3.0 06/29/2022 On the adult RSI drug dosing calculator, the highest weight class is now 150 kg (instead of 150+ kg). The doses provided when this option is chosen are most appropriate for patients who weigh 150 kg. For weights greater than 150 kg, please refer to the base dosing schedule found in the “About Calculator” section of the Adult RSI Calculator. Lean body weight should be used for induction agent dosing. See also The Walls Manual of Emergency Airway Management, 5e (Chapter 20).
On the Pediatric Patient RSI Chart, the size of the ET Tube in the Orange Zone has changed from 6.0 cuff to 5.5 cuff.
On the Pediatric Patient RSI Chart, the size of the ET Tube in the Green Zone has changed from 6.5 cuff to 6.0 cuff.
Links in the Additional Resources section were updated to point to our newly redesigned website (www.theairwaysite.com). 2.3 08/08/2018 This revision introduces the new EMS Difficult Airway Algorithm. This algorithm is modeled after the original Difficult Airway Algorithm but is tailored to the EMS environment. It incorporates predicted difficult airway and experienced difficult airway situations with modifications to account for transport times, local protocols, preference and medical direction.
In the Pediatric RSI section, the stylet size in the Purple Zone was changed from 10 F to 6 F. 2.2 02/15/2018 This revision (along with the previous one) brings The Difficult Airway App™ fully in line with the Walls Manual of Emergency Airway Management, 5th Edition (Brown CA, Sakles JC, Mick NW eds., 2017). The changes in this revision include:
•A minor revision to the Difficult Airway Algorithm
•Removal of vecuronium from the NMBA list in the adult drug dosing calculator
•Clarification that induction agent dosing for “thin to average patients” is based on total body weight
•Improvement to Adult RSI navigation
•The addition of “Flush Rate O₂” to the 7Ps of RSI (Adult)
•The addition of “Consider shoulder roll for infants < 6 months” to the 7Ps of RSI (Pediatric)
•Minor edits to “Tips and Pearls”
•Two new airway anatomy illustrations in Educational Resources 2.1 04/25/2017 June 10, 2016
Updated difficult airway mnemonics and "7Ps of RSI" to match the new material being taught in The Difficult Airway Course: Emergency™. Evidence-based simplification of adult drug dosing calculator. Other minor revisions. 2.0 06/13/2016 Updated algorithms and mnemonics to match the Manual of Emergency Airway Management (4th Edition). Improved organization, easier navigation, new "About Calculator" section and other content enhancements. 1.5 06/12/2012 Enhancements to adult RSI section. 1.0.2 10/12/2011 updated EULA 1.0.1 06/17/2011 1.0 06/07/2011
About The Difficult Airway App
The company that develops The Difficult Airway App is Airway Management Education Center. The latest version released by its developer is 3.3.
To install The Difficult Airway App on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-14 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the The Difficult Airway App as malware if the download link is broken.
How to install The Difficult Airway App on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the The Difficult Airway App is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After The Difficult Airway App is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
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Version History
version 3.3
posted on 2026-10-14
Version History Age Rating updates. 3.3 Jan 5 Improved navigation for difficult airway prediction. Delivers 7Ps for Intubation checklist; enhanced adult and pediatric RSIs; improved dosage calculator to bring up to date with current recommendations; updated airway algorithms. 3.2 05/23/2024 Improved User Experience (UX) on the Welcome Screens and the App Registration Form (optional). 3.1 08/05/2022 The overall look of The Difficult Airway App has been refreshed with a new color scheme and updated navigation. There are minor changes in the SCh Hyperkalemia, Tips & Pearls, Adult 7Ps, Pediatric 7Ps, and Additional Resources sections. A new Acronym Section has been added to define the acronyms used in the app.
On the Adult Patient RSI Calculator, the following adjustments have been made:
- Midazolam will no longer be recommended as an Induction Agent.
- All induction agents are now tagged as “Total Body Weight” drugs unless the patient is obese or morbidly obese, then the induction agents are tagged as “Lean Body Weight” drugs.
- Refined dosing for Propofol based on body habitus.
- Ketamine dosing has been decreased for hypotension.
- The base dose for Rocuronium has been changed from 1 mg/kg to 1.5 mg/kg for NMBA dosing recommendations. 3.0 06/29/2022 On the adult RSI drug dosing calculator, the highest weight class is now 150 kg (instead of 150+ kg). The doses provided when this option is chosen are most appropriate for patients who weigh 150 kg. For weights greater than 150 kg, please refer to the base dosing schedule found in the “About Calculator” section of the Adult RSI Calculator. Lean body weight should be used for induction agent dosing. See also The Walls Manual of Emergency Airway Management, 5e (Chapter 20).
On the Pediatric Patient RSI Chart, the size of the ET Tube in the Orange Zone has changed from 6.0 cuff to 5.5 cuff.
On the Pediatric Patient RSI Chart, the size of the ET Tube in the Green Zone has changed from 6.5 cuff to 6.0 cuff.
Links in the Additional Resources section were updated to point to our newly redesigned website (www.theairwaysite.com). 2.3 08/08/2018 This revision introduces the new EMS Difficult Airway Algorithm. This algorithm is modeled after the original Difficult Airway Algorithm but is tailored to the EMS environment. It incorporates predicted difficult airway and experienced difficult airway situations with modifications to account for transport times, local protocols, preference and medical direction.
In the Pediatric RSI section, the stylet size in the Purple Zone was changed from 10 F to 6 F. 2.2 02/15/2018 This revision (along with the previous one) brings The Difficult Airway App™ fully in line with the Walls Manual of Emergency Airway Management, 5th Edition (Brown CA, Sakles JC, Mick NW eds., 2017). The changes in this revision include:
•A minor revision to the Difficult Airway Algorithm
•Removal of vecuronium from the NMBA list in the adult drug dosing calculator
•Clarification that induction agent dosing for “thin to average patients” is based on total body weight
•Improvement to Adult RSI navigation
•The addition of “Flush Rate O₂” to the 7Ps of RSI (Adult)
•The addition of “Consider shoulder roll for infants < 6 months” to the 7Ps of RSI (Pediatric)
•Minor edits to “Tips and Pearls”
•Two new airway anatomy illustrations in Educational Resources 2.1 04/25/2017 June 10, 2016
Updated difficult airway mnemonics and "7Ps of RSI" to match the new material being taught in The Difficult Airway Course: Emergency™. Evidence-based simplification of adult drug dosing calculator. Other minor revisions. 2.0 06/13/2016 Updated algorithms and mnemonics to match the Manual of Emergency Airway Management (4th Edition). Improved organization, easier navigation, new "About Calculator" section and other content enhancements. 1.5 06/12/2012 Enhancements to adult RSI section. 1.0.2 10/12/2011 updated EULA 1.0.1 06/17/2011 1.0 06/07/2011
version 3.3
posted on 2026-09-05
Version History Age Rating updates. 3.3 Jan 5 Improved navigation for difficult airway prediction. Delivers 7Ps for Intubation checklist; enhanced adult and pediatric RSIs; improved dosage calculator to bring up to date with current recommendations; updated airway algorithms. 3.2 05/23/2024 Improved User Experience (UX) on the Welcome Screens and the App Registration Form (optional). 3.1 08/05/2022 The overall look of The Difficult Airway App has been refreshed with a new color scheme and updated navigation. There are minor changes in the SCh Hyperkalemia, Tips & Pearls, Adult 7Ps, Pediatric 7Ps, and Additional Resources sections. A new Acronym Section has been added to define the acronyms used in the app.
On the Adult Patient RSI Calculator, the following adjustments have been made:
- Midazolam will no longer be recommended as an Induction Agent.
- All induction agents are now tagged as “Total Body Weight” drugs unless the patient is obese or morbidly obese, then the induction agents are tagged as “Lean Body Weight” drugs.
- Refined dosing for Propofol based on body habitus.
- Ketamine dosing has been decreased for hypotension.
- The base dose for Rocuronium has been changed from 1 mg/kg to 1.5 mg/kg for NMBA dosing recommendations. 3.0 06/29/2022 This app has been updated by Apple to prepare for watchOS 27 compatibility. No new features are included.
On the adult RSI drug dosing calculator, the highest weight class is now 150 kg (instead of 150+ kg). The doses provided when this option is chosen are most appropriate for patients who weigh 150 kg. For weights greater than 150 kg, please refer to the base dosing schedule found in the “About Calculator” section of the Adult RSI Calculator. Lean body weight should be used for induction agent dosing. See also The Walls Manual of Emergency Airway Management, 5e (Chapter 20).
On the Pediatric Patient RSI Chart, the size of the ET Tube in the Orange Zone has changed from 6.0 cuff to 5.5 cuff.
On the Pediatric Patient RSI Chart, the size of the ET Tube in the Green Zone has changed from 6.5 cuff to 6.0 cuff.
Links in the Additional Resources section were updated to point to our newly redesigned website (www.theairwaysite.com). 2.3 08/08/2018 This revision introduces the new EMS Difficult Airway Algorithm. This algorithm is modeled after the original Difficult Airway Algorithm but is tailored to the EMS environment. It incorporates predicted difficult airway and experienced difficult airway situations with modifications to account for transport times, local protocols, preference and medical direction.
In the Pediatric RSI section, the stylet size in the Purple Zone was changed from 10 F to 6 F. 2.2 02/15/2018 This revision (along with the previous one) brings The Difficult Airway App™ fully in line with the Walls Manual of Emergency Airway Management, 5th Edition (Brown CA, Sakles JC, Mick NW eds., 2017). The changes in this revision include:
•A minor revision to the Difficult Airway Algorithm
•Removal of vecuronium from the NMBA list in the adult drug dosing calculator
•Clarification that induction agent dosing for “thin to average patients” is based on total body weight
•Improvement to Adult RSI navigation
•The addition of “Flush Rate O₂” to the 7Ps of RSI (Adult)
•The addition of “Consider shoulder roll for infants < 6 months” to the 7Ps of RSI (Pediatric)
•Minor edits to “Tips and Pearls”
•Two new airway anatomy illustrations in Educational Resources 2.1 04/25/2017 June 10, 2016
Updated difficult airway mnemonics and "7Ps of RSI" to match the new material being taught in The Difficult Airway Course: Emergency™. Evidence-based simplification of adult drug dosing calculator. Other minor revisions. 2.0 06/13/2016 Updated algorithms and mnemonics to match the Manual of Emergency Airway Management (4th Edition). Improved organization, easier navigation, new "About Calculator" section and other content enhancements. 1.5 06/12/2012 Enhancements to adult RSI section. 1.0.2 10/12/2011 updated EULA 1.0.1 06/17/2011 1.0 06/07/2011
version 3.3
posted on 2026-08-21
Version History Age Rating updates. 3.3 Jan 5 Improved navigation for difficult airway prediction. Delivers 7Ps for Intubation checklist; enhanced adult and pediatric RSIs; improved dosage calculator to bring up to date with current recommendations; updated airway algorithms. 3.2 05/23/2024 Improved User Experience (UX) on the Welcome Screens and the App Registration Form (optional). 3.1 08/05/2022 The overall look of The Difficult Airway App has been refreshed with a new color scheme and updated navigation. There are minor changes in the SCh Hyperkalemia, Tips & Pearls, Adult 7Ps, Pediatric 7Ps, and Additional Resources sections. A new Acronym Section has been added to define the acronyms used in the app.
On the Adult Patient RSI Calculator, the following adjustments have been made:
- Midazolam will no longer be recommended as an Induction Agent.
- All induction agents are now tagged as “Total Body Weight” drugs unless the patient is obese or morbidly obese, then the induction agents are tagged as “Lean Body Weight” drugs.
- Refined dosing for Propofol based on body habitus.
- Ketamine dosing has been decreased for hypotension.
- The base dose for Rocuronium has been changed from 1 mg/kg to 1.5 mg/kg for NMBA dosing recommendations. 3.0 06/29/2022 This update from Apple will improve the functionality of this app. No new features are included.
On the adult RSI drug dosing calculator, the highest weight class is now 150 kg (instead of 150+ kg). The doses provided when this option is chosen are most appropriate for patients who weigh 150 kg. For weights greater than 150 kg, please refer to the base dosing schedule found in the “About Calculator” section of the Adult RSI Calculator. Lean body weight should be used for induction agent dosing. See also The Walls Manual of Emergency Airway Management, 5e (Chapter 20).
On the Pediatric Patient RSI Chart, the size of the ET Tube in the Orange Zone has changed from 6.0 cuff to 5.5 cuff.
On the Pediatric Patient RSI Chart, the size of the ET Tube in the Green Zone has changed from 6.5 cuff to 6.0 cuff.
Links in the Additional Resources section were updated to point to our newly redesigned website (www.theairwaysite.com). 2.3 08/08/2018 This revision introduces the new EMS Difficult Airway Algorithm. This algorithm is modeled after the original Difficult Airway Algorithm but is tailored to the EMS environment. It incorporates predicted difficult airway and experienced difficult airway situations with modifications to account for transport times, local protocols, preference and medical direction.
In the Pediatric RSI section, the stylet size in the Purple Zone was changed from 10 F to 6 F. 2.2 02/15/2018 This revision (along with the previous one) brings The Difficult Airway App™ fully in line with the Walls Manual of Emergency Airway Management, 5th Edition (Brown CA, Sakles JC, Mick NW eds., 2017). The changes in this revision include:
•A minor revision to the Difficult Airway Algorithm
•Removal of vecuronium from the NMBA list in the adult drug dosing calculator
•Clarification that induction agent dosing for “thin to average patients” is based on total body weight
•Improvement to Adult RSI navigation
•The addition of “Flush Rate O₂” to the 7Ps of RSI (Adult)
•The addition of “Consider shoulder roll for infants < 6 months” to the 7Ps of RSI (Pediatric)
•Minor edits to “Tips and Pearls”
•Two new airway anatomy illustrations in Educational Resources 2.1 04/25/2017 June 10, 2016
Updated difficult airway mnemonics and "7Ps of RSI" to match the new material being taught in The Difficult Airway Course: Emergency™. Evidence-based simplification of adult drug dosing calculator. Other minor revisions. 2.0 06/13/2016 Updated algorithms and mnemonics to match the Manual of Emergency Airway Management (4th Edition). Improved organization, easier navigation, new "About Calculator" section and other content enhancements. 1.5 06/12/2012 Enhancements to adult RSI section. 1.0.2 10/12/2011 updated EULA 1.0.1 06/17/2011 1.0 06/07/2011
version 3.3
posted on 2026-01-05
Age Rating updates.
version 3.2
posted on 2024-05-23
May 23, 2024
Version 3.2
Improved navigation for difficult airway prediction. Delivers 7Ps for Intubation checklist; enhanced adult and pediatric RSIs; improved dosage calculator to bring up to date with current recommendations; updated airway algorithms.
version 3.1
posted on 2022-08-05
Aug 5, 2022
Version 3.1
Improved User Experience (UX) on the Welcome Screens and the App Registration Form (optional).
version 2.0
posted on 2011-06-07
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