With LANGE Q&A Obstetrics & Gynecology, you have the power to turn study anywhere, anytime. Tired of lugging around heavy textbooks and review guides? Let this premium study tool lighten your load. With questions and detailed answers covering topics included in the USMLE Step 2 and Ob Gyn clerkship exams, this resource is a great place to start your test prep.

Test your overall knowledge by answering randomly generated questions from each category or target areas of weakness by focusing on a specific category.

Install the free version today and jumpstart your studying!
We have provided a limited free version of the content that you can try before deciding to upgrade. This version includes a limited amount of practice questions and basic progress metrics.

Get your best value by upgrading to the Premium Version with a one time, in-app purchase. The Premium Version includes lifetime access to:

• 1128 practice questions with detailed explanations
• Unlimited access to ALL categories:
• Obstetrics
• Fetal Maternal Medicine
• Pathology
• Endocrinology
• 1 comprehensive practice test containing 150 additional questions
• Detailed results tracking measuring your strongest and weakest areas

This dynamic study guide allows you to flag questions as you go, for easier review of problem areas. By offering a rigorous review of key concepts and facts, LANGE Ob Gyn Q&A gives you the knowledge you need to master the USMLE Step 2 and Ob Gyn boards to begin a rewarding professional career.

Our Customer Success Team is available from 8am to 6pm, Monday - Friday (except on major holidays).
Call us at 319-246-5299 and email us at with any questions.

About the Authors:

Vern L. Katz, MD
Clinical Professor
Department of Obstetrics and Gynecology
Oregon Health Science University
Medical Director, Perinatal Services
Sacred Heart Medical Center
Eugene, Oregon

Sharon Phelan, MD
Professor of Obstetrics & Gynecology
School of Medicine
Department of Obstetrics and Gynecology
University of New Mexico
Albuquerque, New Mexico

Vicki Mendiratta, MD
Associate Professor
Department of Obstetrics and Gynecology
University of Washington School of Medicine
Seattle, Washington

Roger P. Smith, MD
The Robert A. Munsick Professor of Clinical
Obstetrics & Gynecology
Director, Medical Student Education
Director, Division of General Obstetrics & Gynecology
Department of Obstetrics and Gynecology
Indiana University School of Medicine
Indianapolis, Indiana

What's New

Version 4.2.2

We have updated the app interface! Let us know what you think by sending an email to

Ratings and Reviews

Astonia22 ,

Great application

Goes in depth to evaluate your knowledge before board exams , comparable to the pretest series

rtix81 ,

Killer Bug...

Works great, even as a starter pack, until the bug hits it and it stops responding.... Forcing you to reinstall it over and over... Wouldn't pay for such an app

Dimka-! ,

Watch out

This is a starter pack and it's missing a lot of questions you which you can purchase for an additional $36!!!!!
Not worth it! Want a refund


gWhiz, LLC
60.1 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
You must be at least 17 years old to download this app.
Infrequent/Mild Sexual Content and Nudity
Frequent/Intense Medical/Treatment Information
Infrequent/Mild Alcohol, Tobacco, or Drug Use or References
Infrequent/Mild Mature/Suggestive Themes
© 2015 by The McGraw-Hill Companies, Inc.
In-App Purchases
  1. Obstetrics & Gynecology LANGE Q&A $39.99
  2. Obstetrics & Gynecology LANGE Q&A - Standard $24.99
  3. Obstetrics & Gynecology LANGE Q&A - Standard to Premium $14.99


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