ICU Basics: CCRN & PCCN Prep

ICU Basics has 2,400+ practice questions for the CCRN, PCCN, CMC, CSC and CEN exams, ACLS, and the 2027 NBRC Respiratory Therapy Examination, each with a full rationale. Created by an ICU nurse educator (BSN, CCRN, CEN) for critical care nurses, respiratory therapists and nursing students. Free to use, with no account and no ads.

NEW: RESPIRATORY THERAPY EXAM PREP
Built to the NBRC outline effective January 2027, the single exam that replaces the TMC and CSE. More than 400 questions for adult, pediatric and neonatal patients, with 160-question, 4-hour mock exams.

FULL-LENGTH MOCK EXAMS
Mock exams built to each exam's official test plan.
• The real number of questions and time limit: 150 questions in 3 hours for the CCRN and PCCN, 90 in 2 hours for the CMC and CSC
• Topic mix matched to the published percentages, with new questions every time
• See answers after each question, or only at the end like test day
• Skip, go back, flag questions, and review before you submit
• Leave anytime and pick up where you left off; the timer pauses

COMPREHENSIVE EXAM PREP
• CCRN (Adult), 1,300+ questions: Cardiovascular, Pulmonary, Endocrine, Neuro, Professional Caring, and more
• PCCN, 900+ questions: Cardiovascular, Respiratory, Endocrine/GI/Renal, Multisystem, and Professional Caring
• CMC, 800+ questions: Heart failure, ACS, electrophysiology, and patient management
• CSC, 590+ questions: Post-op hemodynamics, bypass complications, and recovery
• ACLS: Megacode scenarios, rhythm recognition, and AHA algorithms
• CEN, 690+ questions: every domain of the BCEN outline, with 175-question mocks
• ICU Basics, 2,400+ questions: every question in the app, sorted into 58 ICU topics

RHYTHM STRIPS AND WAVEFORMS
Rhythm strips and waveforms drawn right in the app: atrial fibrillation, SVT, VT, torsades, heart blocks and paced rhythms, plus arterial line, CVP, PA catheter, IABP timing, capnography and ventilator tracings.

SMART STUDY MODES
• Daily Review: Spaced repetition brings questions back right before you'd forget them
• Second tries and follow-ups: a miss returns at the end, after a new question on the same idea
• Trouble Questions: everything you've missed three or more times, in one drill
• Question of the Day: A fresh, challenging question every day
• Custom Quizzes: Choose your topics and question count
• Timed Quizzes: Study against the clock
• Missed Questions and Weakest Subject sessions built from your own answers
• Daily Reminders: A nudge at the time you choose

DETAILED RATIONALES
Every question explains why the right answer is right and why each wrong answer is wrong.

BEDSIDE REFERENCE AND ONE-PAGERS
One search across everything:
• 95 drugs by name or class, with indications, dosing, mechanism and pharmacokinetics
• 46 drips with a dose ↔ mL/h converter
• 34 step-by-step algorithms, from ACLS to massive PE and postpartum hemorrhage
• 102 calculators and scores, lab values in US or SI units, quick cards and tap-to-check checklists
• 55 one-page topic summaries with in-depth sections and sources
For education only; always follow your institution's protocols.

TRACK YOUR PROGRESS
• Daily streak, overall accuracy, and how much of the bank you've covered
• Accuracy and coverage for every topic
• Mock exam scores over time, and the reviews due each day this week
• Your own notes on any question, and search across the whole bank
• Back up your progress to Google Drive or a file, and restore it on a new phone
• A daily countdown to your exam date

ICU Basics is an independent study aid and is not affiliated with, endorsed by, or sponsored by AACN, the AACN Certification Corporation, the American Heart Association, the National Board for Respiratory Care (NBRC), or BCEN. CCRN, PCCN, CMC, and CSC are exams of the AACN Certification Corporation; CRT and RRT are credentials of the NBRC; CEN® is a registered trademark of BCEN. Content is for education and exam preparation only and is not medical advice.