Chinese Pinyin
GRATUIT
Gratuit
Education
Gratuit
Zero Deficit CriticalCare Prep
par ZERO DEFICIT LLC
Description
PASS YOUR CCRN EXAM WITH CONFIDENCE — BUILT BY AN ICU NURSE, FOR ICU NURSES
The ultimate CCRN exam preparation app designed specifically for critical care nurses. Stop studying with outdated textbooks written by people who haven't touched a ventilator in decades.
You are a critical care nurse. You manage hemodynamics, titrate vasoactive drips, interpret complex arrhythmias, and advocate for patients at their most vulnerable moments. You deserve a CCRN review tool that matches your level of clinical expertise.
Zero Deficit: Critical Care Prep is developed by a practicing ICU nurse with 7 years of bedside experience. We bridge the gap between textbook theory and bedside reality, helping you master the clinical judgment required to pass your certification exam.
72-HOUR FULL ACCESS FREE TRIAL
We're confident in our content. No paywalls. No restricted features. Download and get unlimited access to every practice question, flashcard, study guide, and AI feature for 72 hours. No credit card required.
695+ HIGH-YIELD CCRN PRACTICE QUESTIONS
Our comprehensive question bank doesn't just ask "what"—it explains "why." Every question includes detailed rationales teaching pathophysiology, pharmacology, and critical thinking. Covers 100% of the CCRN test plan blueprint.
CARDIOVASCULAR
• Acute Coronary Syndromes: STEMI, NSTEMI, Unstable Angina
• Hemodynamic Monitoring: PA Catheters, Arterial Lines, CVP, SvO2
• Heart Failure & Cardiogenic Shock Management
• Cardiac Surgery: CABG, Valve Replacements, Post-Op Care
PULMONARY
• Mechanical Ventilation: Modes, Settings, Weaning Protocols, ARDSNet
• ABG Interpretation: Acid-Base Disorders, Oxygenation, Ventilation
• Thoracic Surgery & Chest Tube Management
• Pulmonary Embolism & Pulmonary Hypertension
NEUROLOGY & MULTISYSTEM
• ICP Monitoring, EVD Management & Traumatic Brain Injury
• Stroke Care: Ischemic, Hemorrhagic, tPA, Thrombectomy
INTELLIGENT STUDY TECHNOLOGY
AI-POWERED PERSONALIZATION
Stop wasting time on concepts you've already mastered. Our intelligent algorithm analyzes your performance in real-time. Weak in hemodynamics but strong in neuro? The AI generates custom study guides and targeted question sets to address your specific knowledge gaps.
190+ SMART FLASHCARDS WITH SPACED REPETITION
Using the scientifically-proven SM-2 algorithm, flashcards appear right before you're about to forget. This active recall method is proven to double long-term retention rates. Master critical care concepts efficiently.
FULL-LENGTH SIMULATION EXAMS
Combat test anxiety with realistic 150-question mock exams timed exactly like the actual CCRN. Build mental stamina so the 3-hour certification exam feels manageable.
DETAILED PERFORMANCE ANALYTICS
• Progress tracking by body system and category
• Study streak tracking to maintain momentum
• Identify weak areas before exam day
EXCLUSIVE STUDY RESOURCES
• Zero Deficit Cheat Sheets: High-yield quick reference guides perfect for breakroom review between patients
• Test-Taking Strategy Training: Learn to dissect NCLEX-style questions, eliminate distractors, and find correct answers even when unsure
• Cross-Platform Sync: Start studying on your iPhone during a shift, continue on your iPad at home. Your progress syncs seamlessly.
SIMPLE, TRANSPARENT PRICING
No hidden fees. No surprise charges. Choose your plan:
• Monthly: $14.99/month — Flexible month-to-month
• Annual: $84.99/year — Best value, save over 50%
• Lifetime: $199.99 — One-time purchase, access forever
SUBSCRIPTION TERMS:
• Premium Monthly: $14.99/month (auto-renews)
• Premium Annual: $84.99/year (auto-renews)
• Lifetime Access: $199.99 (one-time purchase)
Payment charged to Apple ID at confirmation. Subscriptions auto-renew unless cancelled at least 24 hours before the current period ends. Manage subscriptions in your App Store account settings after purchase.
Terms of Use: https://zerodeficitccrnprep.com/terms
Privacy Policy: https://zerodeficitccrnprep.com/privacy-policy
The ultimate CCRN exam preparation app designed specifically for critical care nurses. Stop studying with outdated textbooks written by people who haven't touched a ventilator in decades.
You are a critical care nurse. You manage hemodynamics, titrate vasoactive drips, interpret complex arrhythmias, and advocate for patients at their most vulnerable moments. You deserve a CCRN review tool that matches your level of clinical expertise.
Zero Deficit: Critical Care Prep is developed by a practicing ICU nurse with 7 years of bedside experience. We bridge the gap between textbook theory and bedside reality, helping you master the clinical judgment required to pass your certification exam.
72-HOUR FULL ACCESS FREE TRIAL
We're confident in our content. No paywalls. No restricted features. Download and get unlimited access to every practice question, flashcard, study guide, and AI feature for 72 hours. No credit card required.
695+ HIGH-YIELD CCRN PRACTICE QUESTIONS
Our comprehensive question bank doesn't just ask "what"—it explains "why." Every question includes detailed rationales teaching pathophysiology, pharmacology, and critical thinking. Covers 100% of the CCRN test plan blueprint.
CARDIOVASCULAR
• Acute Coronary Syndromes: STEMI, NSTEMI, Unstable Angina
• Hemodynamic Monitoring: PA Catheters, Arterial Lines, CVP, SvO2
• Heart Failure & Cardiogenic Shock Management
• Cardiac Surgery: CABG, Valve Replacements, Post-Op Care
PULMONARY
• Mechanical Ventilation: Modes, Settings, Weaning Protocols, ARDSNet
• ABG Interpretation: Acid-Base Disorders, Oxygenation, Ventilation
• Thoracic Surgery & Chest Tube Management
• Pulmonary Embolism & Pulmonary Hypertension
NEUROLOGY & MULTISYSTEM
• ICP Monitoring, EVD Management & Traumatic Brain Injury
• Stroke Care: Ischemic, Hemorrhagic, tPA, Thrombectomy
INTELLIGENT STUDY TECHNOLOGY
AI-POWERED PERSONALIZATION
Stop wasting time on concepts you've already mastered. Our intelligent algorithm analyzes your performance in real-time. Weak in hemodynamics but strong in neuro? The AI generates custom study guides and targeted question sets to address your specific knowledge gaps.
190+ SMART FLASHCARDS WITH SPACED REPETITION
Using the scientifically-proven SM-2 algorithm, flashcards appear right before you're about to forget. This active recall method is proven to double long-term retention rates. Master critical care concepts efficiently.
FULL-LENGTH SIMULATION EXAMS
Combat test anxiety with realistic 150-question mock exams timed exactly like the actual CCRN. Build mental stamina so the 3-hour certification exam feels manageable.
DETAILED PERFORMANCE ANALYTICS
• Progress tracking by body system and category
• Study streak tracking to maintain momentum
• Identify weak areas before exam day
EXCLUSIVE STUDY RESOURCES
• Zero Deficit Cheat Sheets: High-yield quick reference guides perfect for breakroom review between patients
• Test-Taking Strategy Training: Learn to dissect NCLEX-style questions, eliminate distractors, and find correct answers even when unsure
• Cross-Platform Sync: Start studying on your iPhone during a shift, continue on your iPad at home. Your progress syncs seamlessly.
SIMPLE, TRANSPARENT PRICING
No hidden fees. No surprise charges. Choose your plan:
• Monthly: $14.99/month — Flexible month-to-month
• Annual: $84.99/year — Best value, save over 50%
• Lifetime: $199.99 — One-time purchase, access forever
SUBSCRIPTION TERMS:
• Premium Monthly: $14.99/month (auto-renews)
• Premium Annual: $84.99/year (auto-renews)
• Lifetime Access: $199.99 (one-time purchase)
Payment charged to Apple ID at confirmation. Subscriptions auto-renew unless cancelled at least 24 hours before the current period ends. Manage subscriptions in your App Store account settings after purchase.
Terms of Use: https://zerodeficitccrnprep.com/terms
Privacy Policy: https://zerodeficitccrnprep.com/privacy-policy
Nouveautés (v1.1.3)
Build 17 / Version 1.1.3 fixes the rare "Connection Error" issue that some users hit after relaunching the app.
What changed:
• Smarter retry on failed loads. The app now silently re-tries the network three times with growing back-off before showing any error.
• Deeper cache clearing on retry. If a previous launch left the app's local web cache or Service Worker in a corrupted state, the new retry path automatically wipes that storage and reloads cleanly — without needing to uninstall the app.
• New "Reset App Data" recovery button. If you ever do get the connection screen, tap Reset App Data for an in-app one-shot recovery that's equivalent to deleting and reinstalling — but faster, and you stay in the app.
• Live-network awareness. The app now uses the device's built-in network monitor to detect when you regain connectivity and auto-retries the load — no need to back out and reopen.
• Inline reconnect banner instead of a full-screen error. While the app is retrying, you'll see a small banner at the top with progress; the screen stays clean.
Why we shipped it:
A small group of users reported the app showing "Unable to connect" even after relaunching, even with a working internet connection. The root cause was a corrupted WKWebView cache or Service Worker registration left over from a previous launch — these survive a normal reload but get wiped on app deletion. Build 17 clears those automatically, permanently fixing the issue.
No new permissions, no new in-app purchases, no design changes — just a more resilient connection layer and a fast recovery path if anything ever does go wrong.
Thank you to every CCRN candidate who reported this. Your feedback shipped this fix.
What changed:
• Smarter retry on failed loads. The app now silently re-tries the network three times with growing back-off before showing any error.
• Deeper cache clearing on retry. If a previous launch left the app's local web cache or Service Worker in a corrupted state, the new retry path automatically wipes that storage and reloads cleanly — without needing to uninstall the app.
• New "Reset App Data" recovery button. If you ever do get the connection screen, tap Reset App Data for an in-app one-shot recovery that's equivalent to deleting and reinstalling — but faster, and you stay in the app.
• Live-network awareness. The app now uses the device's built-in network monitor to detect when you regain connectivity and auto-retries the load — no need to back out and reopen.
• Inline reconnect banner instead of a full-screen error. While the app is retrying, you'll see a small banner at the top with progress; the screen stays clean.
Why we shipped it:
A small group of users reported the app showing "Unable to connect" even after relaunching, even with a working internet connection. The root cause was a corrupted WKWebView cache or Service Worker registration left over from a previous launch — these survive a normal reload but get wiped on app deletion. Build 17 clears those automatically, permanently fixing the issue.
No new permissions, no new in-app purchases, no design changes — just a more resilient connection layer and a fast recovery path if anything ever does go wrong.
Thank you to every CCRN candidate who reported this. Your feedback shipped this fix.
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