# SBD V/Q

> SBD V/Q (iPhone/iPad app by Satish Deopujari.)

- Source: https://appshunter.io/ios/app/sbd-vq/id6813831892 (this page in markdown: same URL + `.md`)
- Developer: [Satish Deopujari](https://appshunter.io/developer/1180072702)
- Category: Health & Fitness
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: English
- Released: 2026-10-06
- Data updated: 2026-10-08
- User reviews in markdown: https://appshunter.io/ios/app/sbd-vq/id6813831892/reviews.md

## What is SBD V/Q?

V/Q mismatch is at the heart of respiratory support. SBD V/Q is an interactive teaching cartoon of
ventilation–perfusion mismatch — how air (V) must meet blood (Q) in the lung.
See three units side by side:
Matched — blue blood turns red
Shunt — blood with no air; stays blue
Dead space — air with no blood
Drag A–a and FiO2. Restore room air. Watch PaO2 in blood versus PAO2 in the alveolus, Mix
SaO2, and why raising oxygen helps low V/Q but shrugs at true shunt.
Tabs
Play — three units, gases, chips (Normal, Atelectasis, Embolus, Mixed)
Shunt — Qs/Qt, the 100% oxygen test, unused air
TYPE 1&2 — hypoxaemic versus hypercapnic failure
Res — the papers this cartoon stands on

Book and Math — the written walk and the teaching equations
For students, residents, and teachers of physiology and intensive care. Simulated units only.
This is not a medical device. Do not use V/Q to diagnose, treat, monitor, or decide ventilation for a
real patient. Educational use only. Not for clinical use.
SBD teaching · v1.26


## Version history (last 1 release)

### 1.0 — 2026-10-06

No release notes.

## More apps by Satish Deopujari

- [ODC Tutor](https://appshunter.io/ios/app/odc-tutor/id993661003)
- [Complete ABG](https://appshunter.io/ios/app/complete-abg/id993718869)
- [Alveolar - arterial (A-a) Gradient](https://appshunter.io/ios/app/alveolar-arterial-a-a-gradient/id996385661)
- [Medical MCQs](https://appshunter.io/ios/app/medical-mcqs/id1011714896)
- [ETCO2 Tutor](https://appshunter.io/ios/app/etco2-tutor/id1047646888)
- [Rx Pediatric Dehydration](https://appshunter.io/ios/app/rx-pediatric-dehydration/id1051199730)

All apps by Satish Deopujari: https://appshunter.io/developer/1180072702

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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 2026-10-08.*