# Preop Eval — from Joshua Steinberg MD

> Preoperative evaluation and preparation guidance for non-cardiac surgery. (iPhone/iPad app by United Health Services, Inc..)

- Source: https://appshunter.io/ios/app/preop-eval/id374154834 (this page in markdown: same URL + `.md`)
- Developer: [United Health Services, Inc.](https://appshunter.io/developer/1451318916)
- Category: Medical
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings · 12 written reviews indexed
- Age rating: 17+
- Requires: iOS 13.0 · 14 MB
- Languages: American English
- Released: 2010-06-01
- Data updated: 2026-08-03
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/preop-eval/id374154834/reviews.md

## What is Preop Eval?

Preop Eval organizes and presents much of the guidance that one needs in order to evaluate and prepare adult patients for non-cardiac surgery.  It is based upon the guidelines on this topic from the American College of Cardiology, the European Society of Anaesthesiology, the American Society of Anesthesiologists, the Institute for Clinical Systems Improvement, the American College of Chest Physicians, and more (full references in the app).  The app contains 1 algorithm and 3 resources:  the cardiac evaluation algorithm, guidance on starting and stopping key medications in the perioperative period, guidance on timing of surgery after cardiac events, and guidance on preoperative testing.  It also contains a review of preoperative evaluation mainly for students and residents.

The app addresses such common questions as:
- who needs bloodwork before surgery?
- who needs an EKG or a CXR?
- how do I handle patients on warfarin, clopidogrel, and DOAC's?
- which patients need adjustment of perioperative insulin and diabetic meds, and how?
- which active cardiac conditions preclude surgery?
- how long after MI or stent should a patient wait before surgery?
- are there adjustments to make on psych meds, rheumatologic meds, ACE's and ARB's?

This app is written and intended for practicing physicians like internists, family physicians, and hospitalists; for resident physician trainees; and for medical students.  In addition to being a reference, the algorithm is written to be a teaching tool by not just delivering an answer, but instead walking a physician through the evaluation process so that one learns that process along the way.  As an educator and clinician, I am interested in feedback and I would be grateful for guidance on improving the tool.

## Key features

- Cardiac evaluation algorithm
- Medication guidance (starting/stopping)
- Surgery timing after cardiac events
- Preoperative testing recommendations
- Review for students and residents
- Perioperative insulin management

## Recent user reviews (10 of 12)

All indexed reviews: https://appshunter.io/ios/app/preop-eval/id374154834/reviews.md

### 1/5 — Newer app works: PreopEval14, same author

*2014-12-09*

UPDATE: he wrote a new app called PreopEval14 and it seems to work. Delete this one and go download that one. 

Re: THIS app: I get no response when clicking on anything inside the app anymore...maybe since recent iOS updates?

### 5/5 — Used to be a great resource

*2014-11-24*

Once the update for the new version of iOS is available it will be great again! Unfortunately it doesn't work with the latest software. Please update ASAP

### 5/5 — Still not working with new iOS

*2014-11-19*

even after upgrade today ... please fix ... 5 stars when working

### 1/5 — Doesn't work

*2014-10-25*

Doesn't work, it needs to be updated

### 1/5 — Doesn't work

*2014-10-15*

Needs update for new iOS.

### 3/5 — IOS8 incompatible

*2014-10-05*

It doesn’t work, please fix.  Unfortunately, I don’t know if it’s worthwhile or not because I can’t use it.

### 5/5 — Unfortunately it doesn't work with latest iOS 8.02

*2014-10-01*

Please fix!

### 5/5 — Very good

*2013-11-02*

Really like it

### 5/5 — Preop

*2011-06-14*

Extremely helpful guide

### 5/5 — MD

*2011-02-18*

Very helpful and handy app.

## Frequently asked questions about Preop Eval

### What kind of surgical patients does Preop Eval focus on?

Preop Eval focuses on the evaluation and preparation of adult patients for non-cardiac surgery. It provides guidance based on established medical guidelines from various professional organizations.

### What are the main resources available in Preop Eval?

Preop Eval includes a cardiac evaluation algorithm, guidance on managing key medications before and after surgery, advice on the timing of surgery after cardiac events, and recommendations for preoperative testing. It also offers a review of preoperative evaluation for educational purposes.

### Who developed Preop Eval and what is its medical basis?

Preop Eval is developed by Joshua Steinberg MD and is based on guidelines from organizations such as the American College of Cardiology and the European Society of Anaesthesiology. Full references for these guidelines are available within the app.

### Does Preop Eval help with managing patient medications?

Yes, Preop Eval provides guidance on starting and stopping key medications in the perioperative period. This includes advice on managing warfarin, clopidogrel, DOACs, and adjustments for psych meds, rheumatologic meds, ACEs, and ARBs.

### Is Preop Eval suitable for medical students and residents?

Yes, Preop Eval is intended for practicing physicians, resident trainees, and medical students. The algorithm is designed as a teaching tool to walk users through the evaluation process, aiding in learning.

### What devices is Preop Eval available on?

Preop Eval is available on iPhone and iPod devices. It is designed for iOS operating systems.

### How often is Preop Eval updated?

The latest version of Preop Eval is 4.4, and it was last updated on November 5, 2025. This indicates a recent update, suggesting ongoing maintenance and potential improvements.

### What is the age rating for Preop Eval?

Preop Eval has an age rating of 17+. This is common for medical reference applications that contain complex medical information.

## Version history (last 5 releases)

### 4.4 — 2025-11-05

- updated guidance on perioperative buprenorphine
- perioperative fasting (food and drink)
- perioperative GI meds as related to avoiding aspiration
- ASA physical status classes and recommendations from ASA on preop testing for class I & II undergoing low risk surgery
- preop urinalysis clarification based upon IDSA guideline

### 4.3 — 2025-08-26

added guidance on additional medications: herbals, vitamins, supplements, and cannabinoids

### 4.2 — 2025-03-06

Significant updates on perioperative GLP-1 use, more data on SGLT-2's perioperatively, and additional evidence on perioperative ACE-ARB's

### 4.1.1 — 2025-03-04

Dysfunctional graphic for DOAC interruption low-mod risk patients fixed.  That's it!

### 4.1 — 2024-12-15

Updated the guidance from ACC-AHA 2024 and ACCP 2022 guidelines on all anticoagulants (VKA, DOAC) and antiplatelet agents (aspirin, clopidogrel, etc.).

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## More apps by United Health Services, Inc.

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All apps by United Health Services, Inc.: https://appshunter.io/developer/1451318916

## Related topics

[preop eval](https://appshunter.io/ios/topics/preop-eval)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-03.*