- CSC stands for Cardiac Surgery (Adult), an AACN Certification Corporation subspecialty credential, not a generic "cardiac" title.
- The exam is 90 multiple-choice questions (75 scored, 15 unscored) in 2 hours, with a passing cut of 55 of 75 scored items.
- Therapeutic Interventions (43%) and Complications (33%) together make up 76% of the current test plan.
- Initial exam fee is $150 for AACN members and $240 for nonmembers, taken via PSI or Live Remote Proctoring.
What Does CSC Mean?
CSC stands for Cardiac Surgery (Adult), a nursing subspecialty certification administered by AACN Certification Corporation, the credentialing arm of the American Association of Critical-Care Nurses. It's important to say this plainly because "CSC" is used by more than one certifying body across different industries, and confusing them can send you down the wrong prep path entirely. On this site, CSC always refers to the adult cardiac surgery credential for critical-care nurses. If you landed here wanting the short version, our companion piece CSC Meaning covers the same ground from a slightly different angle, and What Does CSC Stand For? breaks down the acronym itself.
Unlike a broad critical-care certification, CSC is deliberately narrow. It validates that a nurse can competently manage adult patients during the first 48 hours after cardiac surgery - arguably the most hemodynamically volatile window in the entire perioperative episode. That narrow focus is what makes the exam feel different from other critical-care credentials: nearly every scored question ties back to something that can go wrong, or needs to be actively managed, in that specific post-op timeframe.
Who Issues the CSC Credential
AACN Certification Corporation is the sole issuing body for CSC. This matters for two practical reasons. First, it means your exam handbook, blueprint, and renewal rules all come from AACN's own published materials - not from a generic test-prep source. Second, it means CSC sits inside a family of related AACN specialty certifications, and you cannot earn it in isolation; you need an existing, currently active nationally accredited clinical nursing specialty certification as part of your eligibility, alongside an unencumbered U.S. RN or APRN license.
If you're still deciding whether this is the right credential to pursue, What Is CSC? and What Is A CSC? both walk through the practical implications of holding it, while CSC Certification gives a fuller overview of the credential as a whole.
Eligibility: Who Can Actually Earn a CSC
Because CSC certifies a very specific slice of practice, eligibility is built around demonstrated hours in that exact population - not just general critical-care time. There are two qualifying paths, and both require a meaningful concentration of hours specifically with adult cardiac surgery patients in the first 48 postoperative hours.
- Two-year route: 1,750 hours caring for acutely or critically ill adults within the previous two years, with at least 875 hours in the most recent year. Of that total, 875 hours must involve adults during the first 48 hours after cardiac surgery.
- Five-year route: 2,000 qualifying adult acute/critical-care hours across the previous five years, including 144 hours in the latest year. Of that total, 1,000 hours must involve the first-48-hours postoperative population.
You'll also need to identify a clinical supervisor or an RN/physician colleague who can verify your eligible practice hours if your application is audited. This is a real, enforced step - not a formality - so keep documentation of your unit assignments and case exposure as you accumulate hours. A full breakdown of every eligibility route and documentation nuance lives in CSC Requirements 2026: Eligibility, Prerequisites & How to Qualify.
Key Takeaway
Both CSC eligibility routes require a specific number of hours dedicated to the first 48 hours after cardiac surgery - general ICU experience alone will not satisfy the requirement.
Exam Format and Question Style
The CSC exam is closed-book and delivered at PSI test centers or via Live Remote Proctoring, giving candidates some flexibility in how and where they sit for it. The structure is straightforward but unforgiving on time:
- 90 total multiple-choice questions
- 75 scored, 15 unscored (used for future item development, and not distinguishable from scored items)
- 2-hour time limit
- Passing cut: 55 of 75 scored questions
Because unscored items are mixed in and indistinguishable, you should treat every question on the screen as if it counts. The scenario-based writing style is another hallmark of this exam: expect vignette-driven items that describe a hemodynamic trend, a lab value, a rhythm strip finding, or a post-op complication, then ask what action the nurse should take next. This tests clinical judgment far more than rote recall. For a deeper look at how tough this format actually is in practice, see How Hard Is the CSC Exam? Complete Difficulty Guide 2026, and for the exact scoring mechanics, read CSC Passing Score 2026: Exactly What You Need to Pass.
The Four CSC Domains
The current CSC blueprint, in effect from the January 31, 2022 exam version through November 18, 2026, is built around four content domains. Two of them dominate the test plan.
Domain 1: Procedures (11%)
Covers the surgical and interventional procedures themselves - what was done to the patient and why it matters for post-op management.
- Types of cardiac surgical procedures and their immediate implications
- Cannulation strategies, bypass considerations, and graft or valve specifics that affect recovery
Domain 2: Complications (33%)
Focuses on recognizing and responding to the complications that commonly arise in the first 48 hours after surgery.
- Bleeding, tamponade, and dysrhythmias
- Low cardiac output states and vasoplegia
- Neurologic, renal, and infectious complications specific to the post-op window
Domain 3: Therapeutic Interventions (43%)
The largest domain by a wide margin, this area tests your ability to select and manage the right intervention for a given clinical picture.
- Vasoactive and inotropic drug management
- Mechanical circulatory support (IABP, temporary VADs, ECMO considerations)
- Fluid, electrolyte, and ventilator management in the immediate post-op period
Domain 4: Monitoring and Diagnostics (13%)
Covers the data streams nurses must interpret continuously during recovery.
- Hemodynamic waveform interpretation
- Lab trend analysis and chest tube output assessment
- Telemetry and rhythm recognition tied to post-surgical risk
Together, Therapeutic Interventions and Complications make up 76% of the current exam - meaning more than three-quarters of your scored questions will come from just those two domains. That should directly shape how you allocate study time. For a domain-by-domain study strategy, see CSC Exam Domains 2026: Complete Guide to All 4 Content Areas.
| Domain | Current Weight (through Nov 18, 2026) | Weight Effective Nov 19, 2026 |
|---|---|---|
| Procedures | 11% | 9% |
| Complications | 33% | 37% |
| Therapeutic Interventions | 43% | 43% |
| Monitoring and Diagnostics | 13% | 11% |
CSC Exam Fees and Renewal Costs
The initial CSC exam fee is $150 for AACN members and $240 for nonmembers. That single fee covers a 90-question, 2-hour closed-book exam administered through PSI or Live Remote Proctoring. Certification, once earned, lasts three years.
Renewal requires maintaining your qualifying license and base certification, plus 432 first-48-hours postoperative adult cardiac-surgery practice hours during the three-year cycle, with 144 of those hours in the latest year. From there, you choose between two renewal paths:
- CERP route: 25 relevant Category A Clinical Judgment CERPs, at a renewal fee of $75 (member) / $130 (nonmember)
- Exam route: retake the renewal exam for $125 (member) / $170 (nonmember)
For a complete cost comparison including which route makes more financial sense depending on your continuing education access, see CSC Certification Cost 2026: Complete Pricing Breakdown.
Who Hires Nurses With CSC Certification
CSC-certified nurses are most valuable in cardiovascular ICUs, cardiac surgery step-down units, and cardiothoracic surgical recovery units - settings where patients are actively transitioning out of the operating room and through the highest-risk recovery window. Hiring managers in these units look for CSC specifically because it verifies hands-on competency with the exact complications and interventions unique to post-cardiac-surgery care, rather than general critical-care knowledge alone.
Holding CSC alongside a base critical-care certification often signals a nurse is ready for charge roles, rapid-response involvement, or mentoring newer staff on cardiac surgical units. If you're weighing whether the investment of time and hours pays off for your career trajectory, Is the CSC Certification Worth It? Complete ROI Analysis 2026 and CSC Salary Guide 2026: Complete Earnings Analysis dig into that question directly, and CSC Jobs looks at where demand for this credential tends to concentrate.
When to Study Which Domain
Generic study techniques only help if they're mapped to what the CSC exam actually tests. Given that Therapeutic Interventions and Complications make up 76% of the scored questions, your study calendar should weight time accordingly rather than splitting effort evenly across all four domains.
Therapeutic Interventions
- Master vasoactive/inotropic drug selection and titration logic
- Review mechanical circulatory support indications and troubleshooting
Complications
- Build recognition patterns for tamponade, bleeding, and low output states
- Drill dysrhythmia scenarios tied to the first 48 post-op hours
Monitoring and Diagnostics
- Practice hemodynamic waveform interpretation under time pressure
- Review lab trend and chest tube output scenarios
Procedures + Timed Review
- Cover surgical procedure types and their post-op implications
- Run full-length timed practice sets to simulate the 2-hour format
Use spaced repetition for drug dosing thresholds and hemodynamic values specifically - those are the details that fade fastest under exam pressure. For a complete week-by-week plan built entirely around this exam's structure, see CSC Study Guide 2026: How to Pass on Your First Attempt, and check CSC Exam Dates 2026: Testing Windows, Deadlines & Scheduling before locking in your timeline. When you're ready to test your recall under real time constraints, our practice test platform mirrors the 90-question, 2-hour format so you're not surprised on exam day.
Frequently Asked Questions
In this context, CSC stands for Cardiac Surgery (Adult), a specialty certification from AACN Certification Corporation for nurses caring for adult patients in the first 48 hours after cardiac surgery.
The exam has 90 multiple-choice questions total: 75 scored and 15 unscored, administered in a 2-hour time limit.
Under the current passing cut, you need to answer 55 of the 75 scored questions correctly.
Yes. CSC requires an unencumbered U.S. RN or APRN license plus a current, nationally accredited clinical nursing specialty certification as a prerequisite.
CSC certification lasts three years. Renewal requires 432 qualifying practice hours during the cycle and either 25 relevant CERPs or passing the renewal exam.