CEN Study Guide — 2026 Edition cover

CEN — Certified Emergency Nurse Exam · 2026 Edition

CEN Study Guide — 2026 Edition

Edition noteWritten to BCEN's CEN outline effective July 2026, which replaced the January 2022 outline and its ten domains.

Written to BCEN's CEN content outline effective July 2026: eleven chapters, one per domain, 325 original questions with worked explanations, and a 175-question full-length practice exam.

  • 325 original CEN practice questions, each with a worked explanation, in one PDF + EPUB you keep

PDF + EPUB · English · 219 pages · $24.99 one-time

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  • Quick reference
    Chapter 7 — Medical Emergencies · PDF page 85

    A page you can turn back to: the numbers, deadlines or terms gathered in one place.

  • How it's taught
    Chapter 2 — Respiratory Emergencies · PDF page 33

    An explanation page: the material taught in prose, in the order the exam tests it.

  • A question, worked
    Chapter 3 — Neurological Emergencies · PDF page 44

    A practice question with its answer and the reasoning behind it — not just a key.

About the CEN exam

Registered nurses preparing for BCEN's Certified Emergency Nurse exam. This book teaches all eleven domains of the July 2026 content outline through sourced chapters, a quiz closing each chapter and a full-length practice exam with explained answers. It is independent of BCEN and is a self-contained book; it includes no online practice.

Outline changes: It replaces the outline effective January 2022, which had ten domains: gastrointestinal emergencies were combined with genitourinary, gynecology and obstetrical emergencies, and head and neck content sat in a Maxillofacial and Ocular domain.

Certified Emergency Nurse (CEN) Examination — exam facts
Awarding bodyBoard of Certification for Emergency Nursing (BCEN)
Questions175 items: 150 scored and 25 unscored pretest items
Time limit180 minutes (3 hours) total seat time
Passing rule"For the CEN exam, candidates must answer 99 of the 150 scored items correctly to achieve a passing score." BCEN notes the passing score is subject to change every few years.
FeesInitial exam $380; ENA member $285; military $195; retest $200 (discounted retest fee applies up to one year after the initial exam date)
DeliveryBy computer at PSI testing centers or at home via Live Remote Proctoring, within a 90-day testing window
EligibilityA current, unrestricted Registered Nurse license in the United States, a U.S. Territory, Canada or Australia, or a nursing certificate equivalent to a U.S. Registered Nurse
RetakesUnlimited attempts; a 90-day wait is required after a failed attempt
LanguagesEnglish only
Content outlineCertified Emergency Nurse (CEN) Examination Content Outline, Effective July 2026 — effective July 1, 2026
Domains and weights
  • Cardiovascular Emergencies — 12%
  • Respiratory Emergencies — 11.3%
  • Neurological Emergencies — 11.3%
  • Gastrointestinal Emergencies — 9.3%
  • Genitourinary, Gynecology, and Obstetrical Emergencies — 6.7%
  • Mental Health Emergencies — 8.7%
  • Medical Emergencies — 10%
  • Musculoskeletal and Wound Emergencies — 7.3%
  • Head, Eye, Ear, Nose, Throat Emergencies — 6.7%
  • Environment and Toxicology Emergencies, and Communicable Diseases — 8.7%
  • Professional Issues — 8%

Questions buyers ask

How many questions are on the CEN exam, and how long is it?
The CEN exam has 175 items: 150 scored and 25 unscored pretest items. Total seat time is 180 minutes (3 hours).
What score do I need to pass the CEN exam?
BCEN states that candidates must answer 99 of the 150 scored items correctly to achieve a passing score. BCEN also notes that the passing score is subject to change every few years.
What are the CEN exam domains and weights?
The July 2026 outline has eleven domains, weighted by scored items out of 150: Cardiovascular 18, Respiratory 17, Neurological 17, Gastrointestinal 14, Genitourinary/Gynecology/Obstetrical 10, Mental Health 13, Medical 15, Musculoskeletal and Wound 11, Head/Eye/Ear/Nose/Throat 10, Environment/Toxicology/Communicable Diseases 13, Professional Issues 12.
Which CEN content outline is current, and what changed?
The current outline is effective July 2026. It replaces the January 2022 outline's ten domains with eleven: gastrointestinal emergencies became their own domain, and the Maxillofacial and Ocular domain became Head, Eye, Ear, Nose, Throat Emergencies.
Who is eligible to take the CEN exam?
Candidates need a current, unrestricted Registered Nurse license in the United States, a U.S. Territory, Canada or Australia, or a nursing certificate equivalent to a U.S. Registered Nurse.
How much does the CEN exam cost, and can I retake it?
The initial exam is $380 ($285 for ENA members, $195 military), and a retest is $200 up to one year after the initial exam. Retakes are unlimited, with a 90-day wait after a failed attempt.
How is this study guide organised?
It has eleven chapters, one per outline domain, each ending with a quiz, and a 175-question practice exam weighted like the real exam, 325 questions in all, each with an explained answer. Price: $24.99.
Is a study guide enough for the CEN — Certified Emergency Nurse Exam, or do I need a course?
Check eligibility first — per Board of Certification for Emergency Nursing (BCEN): a current, unrestricted Registered Nurse license in the United States, a U.S. Territory, Canada or Australia, or a nursing certificate equivalent to a U.S. Registered Nurse. A book does not replace those requirements. For the exam content itself, this 219-page guide teaches the material chapter by chapter with 325 practice questions and explanations inside. A prep course adds live instruction and a set schedule; whether you need one beyond any required education is your call.
Does the CEN — Certified Emergency Nurse Exam study guide come as a PDF?
Yes — CEN Study Guide — 2026 Edition downloads as PDF and EPUB, 219 pages. The download link is emailed the moment payment clears and does not expire.
How much does the CEN — Certified Emergency Nurse Exam study guide cost?
$24.99, once. There is no subscription and no account to create; the PDF and EPUB files are yours to keep.
Can I read part of the CEN — Certified Emergency Nurse Exam study guide before buying?
Yes. A full chapter is free to read on this page — not a summary of one, the chapter itself.
Is this the official CEN — Certified Emergency Nurse Exam study guide?
No. This is an independent study guide and is not affiliated with or endorsed by the exam's awarding body. It is written from BCEN's CEN Examination Content Outline (effective July 2026) and candidate handbook. Always confirm current requirements with the body that issues your licence.

What's included — and what isn't

Included

  • Every domain of BCEN's July 2026 CEN content outline, each section under its own heading
  • A quiz closing each chapter, sized to the domain's scored-item count
  • A 175-question full-length practice exam weighted like the real exam
  • 325 original questions, each explained and cited to its source
  • Key numbers and quick-reference tables for fast review
  • PDF + EPUB you keep

Not included

  • No printed copy is shipped — this is a file you download and can print yourself
  • No video course, instructor, tutoring or online question bank comes with the book — everything is in the file
  • Not your exam registration or the testing centre's fee, which you still pay to the official body

Contents

See 35 sections and the page each one starts on
  1. Chapter 1 — Cardiovascular Emergenciesp. 7
  2. Chapter 2 — Respiratory Emergenciesp. 22
  3. Chapter 3 — Neurological Emergenciesp. 35
  4. Chapter 4 — Gastrointestinal Emergenciesp. 48
  5. Chapter 5 — Genitourinary, Gynecology, and Obstetrical Emergenciesp. 60
  6. Chapter 6 — Mental Health Emergencies Mental health emergencies are medical emergencies with behaviouralp. 71
  7. Chapter 7 — Medical Emergenciesp. 81
  8. Chapter 8 — Musculoskeletal and Wound Emergenciesp. 92
  9. Chapter 9 — Head, Eye, Ear, Nose, Throat Emergenciesp. 101
  10. Chapter 10 — Environment and Toxicology Emergencies, and Communicable Diseasesp. 111
  11. Chapter 11 — Professional Issuesp. 124
  12. Answer key & explanationsp. 133
  13. Appendix A — Emergency- nursing terminologyp. 135
  14. Section 1 — Cardiovascular (questions 1–21)p. 139
  15. Section 2 — Respiratory (questions 22–41)p. 144
  16. Section 3 — Neurological (questions 42–61)p. 148
  17. Section 4 — Gastrointestinal (questions 62–77)p. 152
  18. Section 5 — Genitourinary, Gynecology, and Obstetrical (questions 78–89)p. 156
  19. Section 6 — Mental Health (questions 90–104)p. 159
  20. Section 7 — Medical (questions 105–121)p. 162
  21. Section 8 — Musculoskeletal and Wound (questions 122–134)p. 166
  22. Section 9 — Head, Eye, Ear, Nose, Throat (questions 135–146)p. 169
  23. Section 10 — Environment and Toxicology, and Communicable Diseases (questions 147–161)p. 171
  24. Section 11 — Professional Issues (questions 162– 175)p. 175
  25. Section 1 — answers 1–21p. 178
  26. Section 2 — answers 22–41p. 181
  27. Section 3 — answers 42–61p. 184
  28. Section 4 — answers 62–77p. 186
  29. Section 5 — answers 78–89p. 188
  30. Section 6 — answers 90–104p. 189
  31. Section 7 — answers 105–121p. 191
  32. Section 8 — answers 122–134p. 193
  33. Section 9 — answers 135–146p. 194
  34. Section 10 — answers 147–161p. 196
  35. Section 11 — answers 162–175p. 198

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Cardiovascular Emergencies
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Cardiovascular emergencies carry the heaviest weight on the CEN outline, and they reward one habit above all others: decide first whether the patient is perfusing. Chest pain, a fast or slow rhythm, a cold leg or a low blood pressure all lead back to the same questions — is the heart filling, is it pumping, is blood getting past an obstruction — and the answer determines what the emergency nurse does in the next five minutes. This chapter follows the outline's twelve sections in order.

A. Acute coronary syndrome

Acute coronary syndrome (ACS) is the spectrum of unstable angina, non–ST-elevation MI and ST-elevation MI (STEMI). Classic heart-attack pain is pressure-like, lasts minutes and is not fully relieved by rest or nitroglycerin: "The pain most often lasts longer than 20 minutes. Rest and a medicine to relax the blood vessels (called nitroglycerin) may not completely relieve the pain of a heart attack"[1]. The exam likes the patient who does not look like the textbook: older adults, people with diabetes and women "may have little or no chest pain" and instead report dyspnea, fatigue or weakness[1].

Triage. ESI handbook guidance is that a patient with chest pain should have an ECG within 10 minutes, and an abnormal ECG makes the patient level 2[2]; active chest pain suspicious for ACS is a high-risk (level 2) situation even when no immediate lifesaving intervention is needed[2], while a chest-pain patient who needs intubation or hemodynamic support is level 1[2]. A normal first ECG does not exclude MI — "a heart attack can also occur without ECG changes"[1] — so serial ECGs and troponin follow; troponin shows whether heart cells have been damaged[3].

Treatment and timing. Aspirin is given unless it is unsafe, in which case another antiplatelet is substituted[1]. For STEMI, angioplasty "should be done within 90 minutes after you get to the hospital," and when fibrinolytics are used they are ideally given "within 30 minutes of arriving at the hospital"[1]. Bleeding is the most common and potentially life-threatening risk of fibrinolysis, and uncontrolled severe hypertension is a listed contraindication[4].

The trap. Nitroglycerin lowers blood pressure and can cause dizziness and fainting[5]; it must not be combined with a phosphodiesterase-5 inhibitor such as sildenafil, whose labeling warns against use with nitrates[6]. Always ask about erectile-dysfunction and pulmonary-hypertension drugs before the first dose.

B. Aneurysm and dissection

An aortic dissection is a tear in the inner wall that creates a false channel; the pain is sudden and "sharp, stabbing, tearing, or ripping," felt below the breastbone and moving to the back[7]. A blood-pressure difference between the arms (or arms and legs) is a key examination finding[7], and because the dissection can stop flow to branch vessels, patients may have stroke signs, limb ischemia or abdominal pain[7].

Why it matters in the ED. The pain "may feel like a heart attack"[7], and the ACS reflex — antiplatelets, anticoagulants, fibrinolytics — is exactly what a dissection cannot tolerate. The priority is to lower heart rate and blood pressure: IV antihypertensives are given, and "Beta-blockers are the medicines of first choice"[7]. Ascending dissections go to surgery[7].

Abdominal aortic aneurysm (AAA). Rupture presents with severe abdominal or back pain that may spread to the groin or legs, fainting, clammy skin and shock[8]; examination may find a pulsating abdominal mass[8]. Bleeding from an aneurysm requires surgery right away[8]. The trap is the older patient labelled "renal colic" or "back strain" who is hypotensive.

C. Cardiopulmonary arrest

Cardiac arrest is sudden loss of heart function, breathing and consciousness; a person in arrest "needs to be treated with a defibrillator right away"[9]. Ventricular fibrillation causes immediate collapse[10] and is treated with an electric shock that "should be done as quickly as possible"[10].

High-quality CPR is what keeps the brain alive until the shock: compressions at 100 to 120 per minute to a depth of about 2 to 2¼ inches (5 to 6 cm)[10], full chest recoil after each compression[11], pauses under 10 seconds[11], and a change of compressor every 2 minutes to prevent fatigue[11]. Permanent brain damage can begin within about 4 minutes of absent blood flow[11]. In suspected opioid arrest, naloxone may be given without interfering with CPR[11].

How it is tested. Questions ask what comes first (the shock for a shockable rhythm, compressions for everything else), what interrupts compressions least, and who does what on a resuscitation team. The trap is any option that pauses compressions for a non-essential task.

D. Dysrhythmias

Manage the patient, not the monitor: the same rhythm is handled differently when the patient is stable or unstable. When an arrhythmia is serious, urgent treatment may include "Electrical therapy (defibrillation or cardioversion)," a temporary pacemaker, or IV medicines[12].

  • Atrial fibrillation — the rate may reach 250 to 350 and is very often over 100[13]. The irregular rhythm "makes blood clots more likely to form," which is why stroke prevention with anticoagulation is central[13]; but blood thinners raise bleeding risk, so not everyone can take them[13]. Cardioversion can restore rhythm right away[13].
  • PSVT — rates may exceed 250[14]. In a stable patient, vagal manoeuvres such as the Valsalva manoeuvre come first[14]; emergency treatment includes IV medicines and electrical cardioversion[14].
  • Ventricular tachycardia — a rate over 100 from a ventricle with at least three beats in a row[15]. A patient with VT who is in distress may need CPR or cardioversion[15]; low potassium is a recognised trigger[15], and torsade de pointes is often medication-related[15].
  • Bradycardia — dangerous when the heart cannot pump enough blood[16]. Look for beta-blockers, calcium-channel blockers and other culprit drugs[16]; emergency treatment uses atropine or other chronotropes and pacing[16].

The trap: treating a number. A heart rate of 150 in a patient who is talking and perfusing is not an indication for an immediate shock; a heart rate of 40 with hypotension and confusion is not an indication to "watch and wait."

E. Endocarditis, Myocarditis, Pericarditis

Endocarditis. Bacteria reach the valves through the bloodstream; injection drug use with unclean needles is a classic portal[17]. Look for fever with a new or changed murmur[17], and embolic signs such as Janeway lesions[17] or stroke from infected fragments travelling to the brain[17]. Blood cultures guide antibiotic choice[17] — so they are drawn before the first dose.

Myocarditis. Usually viral[18]; the chest pain "may resemble a heart attack"[18] and the illness is hard to diagnose because it mimics other heart and lung diseases or the flu[18]. Suspect it in a young patient with a recent viral illness, chest pain, dysrhythmia or new heart failure.

Pericarditis. The pain is sharp, "Often increases with deep breathing and lying flat" and "Is often relieved by sitting up and leaning or bending forward"[19]. A pericardial friction rub is the examination finding[19]. NSAIDs are often given with colchicine[19]. Watch for the complication: fluid build-up and poor heart function[19] — the path to tamponade.

F. Heart failure

Acute decompensation presents with dyspnea on exertion or after lying down[20], crackles from fluid in the lungs[20], distended neck veins and edema. Weight gain and leg swelling over a few days signal that the body is holding fluid and heart failure is worsening[20]. Decompensation has triggers — ischemia, high-salt food, MI, infection, not taking medicines correctly and new dysrhythmias[20] — and NSAIDs such as ibuprofen can make heart failure worse[20].

In the ED: sit the patient upright, give oxygen for hypoxemia, and anticipate diuretics and vasodilators per order while you look for the trigger. The trap is the patient with hypotension and cool extremities as well as congestion: that is no longer simple fluid overload but cardiogenic shock (section L).

G. Hypertension

Severe blood-pressure elevation becomes an emergency when organs are being damaged. Malignant hypertension "is a medical emergency"[21]; it presents with headache, blurred vision, chest pain, dyspnea and changes in mental status such as confusion or decreased alertness[21], and it threatens brain, eyes, vessels, heart and kidneys[21]. Treatment is in hospital with IV antihypertensives until the pressure is controlled[21].

How it is tested. The distinction is end-organ damage, not the number. A patient with 210/120 and no symptoms is managed very differently from a patient with 190/110 and new confusion. In the emergency, pressure is lowered in a controlled way with titratable IV agents under continuous monitoring — never by an unmonitored oral bolus and discharge.

H. Pericardial tamponade

In tamponade, "blood or fluid collects in the sac surrounding the heart. This prevents the heart ventricles from expanding fully"[22]. Causes include dissection, MI, heart surgery, pericarditis and wounds to the heart[22]. The examination findings are the ones the exam expects you to connect: neck veins that bulge "but the blood pressure is low"[22], faint heart sounds[22], tachycardia, and blood pressure that falls with deep breathing (pulsus paradoxus)[22]. Bedside echocardiography is the test of choice[22].

Priorities. The fluid "must be drained as quickly as possible"[22]; death can occur quickly if it is not[22]. While drainage is set up, IV fluids are given to keep the pressure up[22]. The trap is reading distended neck veins as heart failure and reaching for a diuretic — which removes the preload a compressed heart depends on.

I. Peripheral vascular disease (e.g., venous and arterial)

Arterial. Acute arterial occlusion from an embolus — very often from atrial fibrillation[23] — produces a painful, pale, numb limb with decreased or absent pulse and blood pressure[23]. Anticoagulation prevents new clot[23] and embolectomy removes the clot[23]; the limb is kept level or slightly dependent, never elevated or warmed. Chronic peripheral artery disease causes claudication — leg pain on walking or climbing stairs[24].

Venous. Chronic venous insufficiency causes swelling and slow-healing ulcers; compression stockings "gently squeeze your legs to move blood up your legs"[25]. The trap is to confuse the two: compression and elevation help venous disease and harm an ischemic arterial limb.

J. Thromboembolic disease

Deep vein thrombosis causes swelling, pain or tenderness of a limb[26] and is confirmed with Doppler ultrasound[26]; its danger is pulmonary embolism, "which may be fatal"[26]. PE classically causes sudden dyspnea and chest pain that "Often gets worse with deep breathing"[27]. When PE is severe and life-threatening, clot-dissolving (thrombolytic) therapy or thrombectomy may be used[27]. The exam tests the unstable PE as obstructive shock (section L) and the stable DVT as a diagnostic-pathway question.

K. Cardiovascular trauma

Blunt cardiac injury (myocardial contusion) follows car crashes, pedestrian strikes and even CPR; a severe contusion may look like a heart attack[28], and ventricular dysrhythmias are a key finding[28]. Most patients are "closely monitored for at least 24 hours" with continuous ECG[28].

Blunt aortic injury follows rapid deceleration — "hitting the steering wheel of a car during an accident" is a named risk for dissection[7]. Penetrating cardiac wounds cause tamponade[22]: any wound near the heart with hypotension, distended neck veins and muffled sounds is tamponade until proven otherwise.

L. Cardiogenic shock and obstructive shock

Shock is inadequate blood flow to the body[29]. Cardiogenic shock occurs "when the heart is unable to supply as much blood as the body needs"[30], most often around an MI, with systolic pressure most often below 90 mm Hg[30], cool clammy skin and pulmonary congestion. Treatment is to fix the cause quickly[30] — for MI, catheterization with angioplasty and stenting[30] — with inotropes and vasopressors as a bridge.

Obstructive shock is caused "by something outside of the heart which prevents the heart from pumping enough blood"[29]: tamponade, tension pneumothorax, massive PE. The treatment is to remove the obstruction — drain, decompress, lyse — not to give inotropes to a heart that cannot fill.

Sources cited in this excerpt

  1. Heart attack: MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/000195.htm
  2. Emergency Severity Index (ESI) Handbook, Fifth Edition. Emergency Nurses Association (Emergency Severity Index Handbook, 5th edition). https://californiaena.org/wp-content/uploads/2023/05/ESI-Handbook-5th-Edition-3-2023.pdf
  3. Acute coronary syndrome: MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/007639.htm
  4. Thrombolytic therapy: MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/007089.htm
  5. Nitroglycerin Sublingual: MedlinePlus Drug Information. U.S. National Library of Medicine. https://medlineplus.gov/druginfo/meds/a601086.html
  6. Sildenafil: MedlinePlus Drug Information. U.S. National Library of Medicine. https://medlineplus.gov/druginfo/meds/a699015.html
  7. Aortic dissection: MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/000181.htm
  8. Abdominal aortic aneurysm: MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/000162.htm
  9. Sudden Cardiac Arrest | MedlinePlus. U.S. National Library of Medicine. https://medlineplus.gov/cardiacarrest.html
  10. Ventricular fibrillation: MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/007200.htm
  11. CPR - adult and child after onset of puberty: MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/000013.htm
  12. Arrhythmias: MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/001101.htm
  13. Atrial fibrillation and atrial flutter: MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/000184.htm
  14. Paroxysmal supraventricular tachycardia (PSVT): MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/000183.htm
  15. Ventricular tachycardia: MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/000187.htm
  16. Slow heart rate - bradycardia: MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/007856.htm
  17. Endocarditis: MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/001098.htm
  18. Myocarditis: MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/000149.htm
  19. Pericarditis: MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/000182.htm
  20. Heart failure: MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/000158.htm
  21. Malignant hypertension: MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/000491.htm
  22. Cardiac tamponade: MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/000194.htm
  23. Arterial embolism: MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/001102.htm
  24. Peripheral Arterial Disease | MedlinePlus. U.S. National Library of Medicine. https://medlineplus.gov/peripheralarterialdisease.html
  25. Venous insufficiency: MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/000203.htm
  26. Deep vein thrombosis: MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/000156.htm
  27. Pulmonary embolus: MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/000132.htm
  28. Myocardial contusion: MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/000202.htm
  29. Shock: MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/000039.htm
  30. Cardiogenic shock: MedlinePlus Medical Encyclopedia. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/000185.htm
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Written to BCEN's CEN content outline effective July 2026: eleven chapters, one per domain, 325 original questions with worked explanations, and a 175-question full-length practice exam.

PrepPass team · Verified against BCEN's CEN Examination Content Outline (effective July 2026) and candidate handbook · How we review
  • Format: PDF + EPUB download · 219 pages
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  • Last updated: September 2026
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