# Sodium FENa Calculator — Acute Kidney Injury Evaluation

> Acute Kidney Injury Evaluation (iPhone/iPad app by Putu Angga Risky Raharja.)

- Source: https://appshunter.io/ios/app/sodium-fena-calculator/id1509845662 (this page in markdown: same URL + `.md`)
- Developer: [Putu Angga Risky Raharja](https://appshunter.io/developer/1164107753)
- Category: Medical, Health & Fitness
- Price: Free
- Age rating: 12+
- Requires: iOS 12.0 · 36 MB
- Languages: English
- Released: 2020-04-24
- Data updated: 2026-05-16
- User reviews in markdown: https://appshunter.io/ios/app/sodium-fena-calculator/id1509845662/reviews.md

## What is Sodium FENa Calculator?

"Sodium FENa Calculator - Acute Kidney Injury" is a mobile app designed to help health practitioner to calculate the fractional excretion of sodium (FENa). This FENa score in "Sodium FENa Calculator - Acute Kidney Injury" app can be used to determine if acute renal failure or acute kidney injury (AKI) is due to pre-renal, renal, or post-renal pathology. The result of calculation will assist in management of patient with acute kidney injury or renal failure.

There are several features of "Sodium FENa Calculator - Acute Kidney Injury", namely:
- Simple and very easy to use FENa calculator.
- Precise calculation of fractional excretion of sodium (FENa).
- Calculation of FENa based on serum creatinine, urinary creatinine, serum sodium, & urinary sodium
- Determine the cause of acute kidney injury (pre-renal, renal, or post-renal pathology)
- It is totally free. Download now!

Fractional excretion of sodium (FENa) score less than 1% is associated with pre-renal pathology, for example hypovolemia, heart failure, renal artery stenosis, or sepsis (anything causing decreased effective renal perfusion). Fractional excretion of sodium (FENa) score more than 4% is associated with post-renal pathology or obstruction, for example bladder prostate hyperplasia (BPH), bladder stone, bilateral ureter obstruction. While fractional excretion of sodium (FENa) score between 1-4% is associated with intrinsic pathology (for example acute tubular necrosis (ATN), acute interstitial nephritis (AIN), or glomerulonephritis). Fractional excretion of sodium (FENa) score is calculated from 4 parameters, namely serum creatinine, urinary creatinine, serum sodium, and urinary sodium.

Disclaimer: all calculations must be re-checked and should not be used alone to guide patient care, nor should they substitute for clinical judgment. Calculations in "Sodium FENa Calculator - Acute Kidney Injury" app might be different with your local practice. Consult to expert doctor whenever necessary.


## Version history (last 3 releases)

### 2.1 — 2021-06-30

Fix several bugs and improve performance

### 1.1 — 2020-09-10

Bug fixes and performance improvement

### 1.0 — 2020-04-24

No release notes.

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All apps by Putu Angga Risky Raharja: https://appshunter.io/developer/1164107753

## Related topics

[sodium fena calculator](https://appshunter.io/ios/topics/sodium-fena-calculator) · [fena calculator](https://appshunter.io/ios/topics/fena-calculator)

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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 2026-05-16.*