From pheochromocytomas and thyroid storm to diabetic ketoacidosis and malignancy-associated hypercalcemia, we internal medicine residents face a variety of endocrine emergencies that can be complicated to manage.

From the authors of and, two free online physician-authored million-word endocrinology textbooks, comes the Endocrinology and Endocrine Emergencies (EEE) App.

It is available on both the iPhone as well as the Android format.

Edited by Dr. Leslie De Groot and authored by the same academic endocrinologists that contribute to the above two web-based resources, the EEE App seeks to provide assistance as a point-of-care resource for physicians recognizing and managing acute endocrine issues.

How can the EEE App help healthcare professionals and trainees in the wards and clinic?


As the home screen of the EEE App suggests, the user interface is clean and streamlined, offering links to the app’s sections, its authors, and information about the app.


The authors of the EEE App, listed alphabetically, are mostly academic endocrinologists, either professors or fellows, both international and domestic.


The app features short biographies of the authors with their academic affiliations and research interests, including which sections of the EEE App they helped author. After reviewing these bios, it becomes quite obvious that the information in the app is developed by endocrinologists who are both knowledgeable about, and interested in, the topics at hand.


On to the material of the EEE App, the topics are organized by sections, including the following sections:

  • Thyroid
  • Pituitary
  • Diabetes
  • Parathyroid/Bone
  • Adrenal
  • Pediatrics
  • Lipids


Here, we take a look at thyroid storm, an endocrine emergency whose management can challenge residents. The section begins with the authors and then clinical recognition—the key first step to managing the condition.

Each topic in the app features the following information:

  • Clinical recognition
  • Pathophysiology
  • Diagnosis
  • Treatment
  • Follow-up
  • Guidelines
  • References


The topics also contain tables to simplify information where appropriate.


Perhaps most impressively, each topic includes a Guidelines section, which features a link to the most up-to-date consensus guidelines on the management of the topic of interest. The links open the associated abstract (typically PubMed) within the app.


Moreover, each topic includes references for further learning, along with links.


  • The EEE App costs $5.99 at the iTunes store.


  • Well-written information authored and edited by academic endocrinologists
  • Seeks to be free from bias toward any commercial product; the app appears to be free of ads
  • Guidelines and references, with links to resources


  • $5.99 price tag, while accessing the web-based resources is free
  • Easier browsing between topics and within each topic would represent a pleasant upgrade


  • The Endocrinology and Endocrine Emergencies (EEE) App from the authors of and offers well-organized, well-written assistance from academic endocrinologists for recognizing and managing a variety of endocrine emergencies. It represents a useful point-of-care resource for physicians (especially residents and including students) in internal medicine and emergency medicine.

iTunes Link