# HeRS - Hemorrhage Risk Stratification Calculator

> Hemorrhage risk calculator for acute ischemic stroke patients. (iPhone/iPad app by Johns Hopkins Mobile medicine.)

- Source: https://appshunter.io/ios/app/hers-hemorrhage-risk-stratification-calculator/id950742929 (this page in markdown: same URL + `.md`)
- Developer: [Johns Hopkins Mobile medicine](https://appshunter.io/developer/488749253)
- Category: Reference, Medical
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 7.1 · 2 MB
- Languages: American English
- Released: 2014-12-21
- Data updated: 2026-08-15
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/hers-hemorrhage-risk-stratification-calculator/id950742929/reviews.md

## What is HeRS?

The HeRS (Hemorrhage Risk Stratification) calculator is an application that aids in determining the probability of hemorrhagic transformation of acute ischemic stroke in patients with an indication for anticoagulation. It is a prospectively validated score.

The HeRS score is a prospectively validated equation based on continuous variables of age, renal function, and stroke size. The equation is complex and cannot be performed easily or quickly with paper or with an ordinary calculator. Determining the probability of hemorrhagic transformation of acute ischemic stroke is clinically useful as risk of hemorrhage often needs to be weighed against risk of recurrent stroke in deciding on whether or not to anticoagulate in the acute clinical setting. The HeRS score provides one of these valuable pieces of data- the likelihood of hemorrhagic transformation. Using the mobile application, the HeRS score can be accurately and easily determined rapidly.

## Key features

- Hemorrhagic transformation probability
- Acute ischemic stroke assessment
- Anticoagulation decision support
- Prospectively validated score
- Rapid and accurate calculation

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/hers-hemorrhage-risk-stratification-calculator/id950742929/reviews.md

### 5/5 — Nifty

*2014-12-30*

This app uses age, renal status and size of ischemic stroke to predict likelihood of hemorrhagic conversion of the ischemic stroke in patients with an indication for anticoagulation. Useful for helping to decide when and if to start heparin on a stroke patient who suffers a cocomidant MI and needs heparin, for instance. Prospective validated. Paper publication reference included in app. Also includes a volume calculator for estimating size of intracerebral hemorrhages.

## Frequently asked questions about HeRS

### What is the HeRS calculator used for?

The HeRS calculator is used to determine the probability of hemorrhagic transformation in patients with acute ischemic stroke who are being considered for anticoagulation. It provides a key data point for weighing the risks of hemorrhage against recurrent stroke.

### Is the HeRS calculator based on reliable data?

Yes, the HeRS score is a prospectively validated equation. This means it has been tested and confirmed through ongoing research to ensure its accuracy and reliability in clinical settings.

### Why is a dedicated app needed for the HeRS score?

The HeRS equation is complex and involves continuous variables like age, renal function, and stroke size. Performing this calculation manually or with an ordinary calculator can be difficult and time-consuming, whereas the app provides rapid and accurate results.

### What devices does the HeRS calculator support?

The HeRS calculator is available for iPhone and iPod devices. It is designed to be accessible on these Apple mobile platforms.

### How often is the HeRS calculator updated?

The HeRS calculator was last updated on December 21, 2014, with version 1.0. As of this last update, there have been no subsequent version releases.

### What is the age rating for the HeRS calculator?

The HeRS calculator has an age rating of 4+. This indicates that it is considered appropriate for users aged 4 and above, with no specific content restrictions.

### Does the HeRS calculator contain advertisements?

No, the HeRS calculator does not contain advertisements. It is a free application that provides its functionality without interruption from ads.

### What is the user rating for the HeRS calculator?

The HeRS calculator has a perfect rating of 5.0 stars, based on one user review. This suggests a highly positive reception from its current user base.

## Version history (last 1 release)

### 1.0 — 2014-12-21

This app has been updated by Apple to display the Apple Watch app icon.

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| --- | --- | --- | --- |
| [Vetivex](https://appshunter.io/ios/app/vetivex/id1410461869) | 4.4 (8) | Free | Reference |

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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 2026-08-15.*