Many of us in Family Medicine practice full scope including obstetrics. This is one of the most rewarding aspects of the specialty, but also one of the most challenging with very unpredictable hours and significant medical legal risk. Many other providers in primary care and OB/GYN may only provide outpatient prenatal care which is equally rewarding with a somewhat more predictable lifestyle. Regardless of what scope of obstetrics care you provide, a good OB wheel app is a must.

With so many different OB apps available, which one should we use? For years, I have used Dr Joshua Steinberg’s medical applications. His most recent app was a redo of the venerable OB Wheel, an excellent medical app designed to assist providers in dating pregnancies and adjusting for sonographic data. He has designed a variety of useful point of care apps including PreopEval14, PFT Eval, EFM Guide, PE & DVT Dx Tool, and my favorite, Pneumonia Guide. The content of the OB Wheels app consists of three main sections: a calculator based on Last Menstrual Period (LMP) or Estimated Date of Delivery (EDD); a “virtual cardboard” old school OB wheel that you can adjust with your fingers; and a reconciliation guide that presents the 2014 ACOG Bulletin on dating pregnancies. This gives the obstetrics provider all the tools they need to date, track, adjust delivery dates, etc.

Clinical Scenario:

You are seeing your new continuity obstetric patient today. The pregnancy appears uncomplicated based on prenatal labs and maternal history, but the patient is not entirely sure of her LMP. Your colleague performed a first trimester ultrasound a week ago that shows a difference of 10 days between the ultrasound and LMP dates for the patient’s EDD. Which do you use? OB Wheels will help you with this decision! Let’s take a look at OB Wheels in action.

Login to iMedicalApps in order to view the following video review of OB Wheels, where we show how to use the app for patient care. Registration for iMedicalApps is free.

Evidence based medicine

OB Wheels incorporates the most current ACOG guideline and previously accepted standards for dating pregnancies. Most importantly, the app contains information to help adjust dating based on sonographic data.

What providers would benefit from this App?

Students, residents, mid-levels, Family Medicine, Midwives, OB/GYN and any provider who performs obstetrics.

Disclaimer: The views expressed are those of the author(s) and do not reflect the official policy of the Department of the Army, the Department of Defense or the U.S. Government.

  • Price
    • Free
    • Contains the current ACOG dating bulletin data.
    • Multiple methods of dating included, even a virtual OB wheel.
    • Automatically changes dates based on sonographic data.
  • Dislikes
    • User interface for the basic calculator appears overly complex compared to others.
    • Virtual OB wheel is difficult to manipulate and not responsive to user input.
    • No patient tracking capabilities.
    • Not available for Android.
  • Overall

    A good, but somewhat disappointing OB wheel app mostly due to an overly complex user interface. It is functional however and the incorporating of the ACOG dating guideline is worth the download alone.

  • Overall Score
  • User Interface

    Needlessly complicated. Virtual OB wheel not responsive to user input without significant effort.

  • Multimedia Usage

    No real multimedia capabilities, but unnecessary in this type of app. No patient tracker function.

  • Price

    App is free!

  • Real World Applicability

    A simple app that is hindered by a challenging user interface.

  • Device Used For Review

    iPhone 6 running iOS 8.4

  • Available for DownloadiPhoneiPad