Article 32 - Lewis Deep Dive
Lewis's Medical-Surgical Nursing 12th Edition - Chapter by Chapter Study Guide & Test Bank (2026)
Lewis's Medical-Surgical Nursing 12th Edition by Mariann M. Harding, Jeffrey Kwong, and Debra Hagler spans 69 chapters across 12 units — covering every major adult health condition a nurse will encounter in clinical practice. This guide breaks down every unit and its highest-yield chapters, shows you which topics carry the most exam and NCLEX weight, and connects each unit to the test bank chapter questions available on MedTestBank.
💡 How to use this guide: Find your current unit in class → identify the highest-yield chapters → focus your test bank practice there first. The chapters marked 🔥 Top Priority appear most frequently on both course exams and the NCLEX.
Unit 1 — Concepts in Nursing Practice (Ch. 1–9)
Foundation
Ch. 1–3
Professional Nursing, Health Disparities & Cultural Competency
Nursing process, evidence-based practice, culturally sensitive care, health equity
Ch. 7
Patient Education
Health literacy, teaching methods, readiness to learn, return demonstration — appears frequently in NCLEX "patient education" priority questions
Ch. 8–9
Palliative & End-of-Life Care
Comfort measures, hospice principles, grief, therapeutic communication at end of life
Unit 2 — Problems of Ingestion, Digestion, Absorption & Elimination (Ch. 38–46)
GI & Renal
Ch. 38–40
GI Assessment & Upper GI Problems
GERD, peptic ulcer disease, GI bleeding, Barrett's esophagus — upper GI emergencies are high-yield NCLEX topics
Ch. 44–46
Renal & Urological Problems ← Most Tested
AKI, CKD, dialysis (hemodialysis vs peritoneal), electrolyte imbalances — lab value questions (BUN, creatinine, K+) dominate this unit
Unit 3 — Problems of Oxygenation (Ch. 25–30)
🔥 Highest NCLEX Weight
Ch. 27
Obstructive Pulmonary Diseases ← #1 Respiratory Chapter
COPD (emphysema, chronic bronchitis), asthma, cystic fibrosis — O2 toxicity in COPD, pursed-lip breathing, positions. The COPD/O2 question is one of the most frequently seen Lewis exam questions.
Ch. 28
Lower Respiratory Problems
Pneumonia, tuberculosis, lung abscess, pulmonary hypertension — pneumonia priority interventions and isolation precautions
Ch. 29
Critical Care & Emergency Respiratory
ARDS, mechanical ventilation, pulmonary embolism — highest acuity respiratory scenarios
Sample — Chapter 27 COPD (Lewis Style)
A nurse is caring for a patient with COPD who is receiving O2 at 4 L/min via nasal cannula. The patient's SpO2 is 98% and they appear comfortable. What is the nurse's priority action?
Correct: C. COPD patients rely on hypoxic drive — their chemoreceptors respond to low O2 rather than high CO2 to trigger breathing. An SpO2 of 98% on 4 L/min is too high and can suppress respiratory drive, causing hypoventilation and CO2 retention. Target SpO2 for COPD: 88–92%. This is one of the most tested Lewis Chapter 27 concepts.
Unit 4 — Problems of Circulation (Ch. 31–37)
🔥 #1 Highest-Yield Unit
Ch. 31
Cardiovascular Assessment
Cardiac auscultation, ECG basics, hemodynamic monitoring — foundational for all cardiovascular chapters
Ch. 33
Coronary Artery Disease & Acute Coronary Syndrome ← #1 Chapter
Angina, STEMI/NSTEMI, troponin levels, thrombolytics, PCI, post-MI nursing. The most heavily tested Lewis chapter on virtually every med-surg exam across the US.
Ch. 34
Heart Failure ← Most NCLEX Questions
Left vs right-sided HF, BNP levels, pulmonary edema, digoxin, diuretics, fluid restriction. More NCLEX questions come from this chapter than almost any other.
Ch. 35
Dysrhythmias
ECG rhythm interpretation, A-fib, V-fib, pacemakers, defibrillation — priority interventions for life-threatening rhythms
Sample — Chapter 34 Heart Failure (Lewis Style)
A patient admitted for heart failure has the following findings: SpO2 88% on room air, bilateral crackles to lung bases, jugular venous distension, and 3+ pitting edema. The patient is anxious and short of breath. Which nursing action is the highest priority?
Correct: C. ABCs first — the patient is hypoxic (SpO2 88%) and in respiratory distress. Elevating HOB reduces venous return and decreases preload while supplemental O2 immediately addresses hypoxemia. Both are independent nursing actions that require no order. Weighing the patient and fluid restriction are appropriate but not the immediate priority. Furosemide addresses the cause but takes time to act — oxygenation must be addressed first.
Unit 5 — Problems of Ingestion, Digestion & Endocrine (Ch. 47–50)
Endocrine — High Yield
Ch. 48–49
Diabetes Mellitus & Hypoglycemia/Hyperglycemia Emergencies
Type 1 vs Type 2, insulin types & peak times, DKA vs HHS differentiation, hypoglycemia priority action, Somogyi effect vs dawn phenomenon
Ch. 50
Thyroid & Adrenal Problems
Hypothyroidism/hyperthyroidism, thyroid storm, Addison's disease, Cushing syndrome — high-yield medication and crisis management questions
Sample — Chapter 48 Diabetes (Lewis Style)
A patient with Type 1 diabetes received NPH insulin at 8:00 AM. At 2:00 PM, the nurse finds the patient diaphoretic, confused, and with a blood glucose of 48 mg/dL. What is the nurse's first action?
Correct: C. The patient is conscious and able to swallow — the fastest and safest first action is oral glucose (15–20g fast-acting carbohydrates). The 15-15 rule: give 15g carbs, recheck in 15 minutes. NPH peaks at 4–12 hours after administration — a 2 PM hypoglycemia with 8 AM NPH injection fits perfectly within the peak window. Glucagon is reserved for unconscious patients who cannot take oral glucose.
Unit 6 — Problems of Urinary Function (Ch. 44–46)
Renal Focus
Ch. 44
Acute Kidney Injury (AKI)
Pre-renal, intrarenal, post-renal AKI; oliguric phase; potassium management; indications for dialysis. BUN/creatinine trends are essential lab knowledge.
Ch. 45
Chronic Kidney Disease (CKD)
Stages 1–5, dialysis access care (AV fistula, grafts), dietary restrictions (K+, phosphorus, protein), erythropoietin therapy
Unit 7 — Problems of Sensation (Ch. 20–24 + Neuro Ch. 56–60)
Neuro & Sensory
Ch. 57
Stroke (Cerebrovascular Accident) ← High-Yield Chapter
Ischemic vs hemorrhagic, tPA eligibility (time window 3–4.5 hrs), FAST acronym, post-stroke positioning, dysphagia assessment
Ch. 56
Increased Intracranial Pressure (ICP)
Monro-Kellie hypothesis, Cushing's triad (bradycardia + hypertension + irregular respirations), HOB positioning at 30°, herniation signs
Ch. 58
Chronic Neurological Conditions
Parkinson's disease, MS, ALS, myasthenia gravis — medication management (carbidopa-levodopa timing) and safety priority questions
Perioperative Care — Chapters 17–19
Surgical Nursing
Ch. 17–19
Pre-op, Intraoperative & Post-Anesthesia Care
Pre-op assessment (NPO guidelines, consent, lab values), malignant hyperthermia signs, PACU assessment, post-op complications (atelectasis, DVT, wound dehiscence)
Sample — Perioperative Chapter 19 (Lewis Style)
A post-operative patient who had abdominal surgery 8 hours ago develops a temperature of 38.9°C (102°F), tachycardia at 116 bpm, and muscle rigidity. The anesthesia provider is notified. What condition does the nurse suspect and what is the priority intervention?
Correct: C. Malignant hyperthermia (MH) is a life-threatening pharmacogenetic reaction to volatile anesthetic agents characterized by hyperthermia, muscle rigidity, and tachycardia — typically occurring within the first 24 hours post-anesthesia. The antidote is dantrolene sodium given IV. All triggering agents must be stopped immediately. This is a classic Lewis perioperative chapter question that tests emergency recognition and priority action.
💡 Chapter prioritization rule: If you have limited study time before a Lewis med-surg exam, work test bank questions in this exact order: Ch. 33–35 (cardiac) → Ch. 27–29 (respiratory) → Ch. 48–49 (diabetes) → Ch. 44–45 (renal) → Ch. 56–57 (neuro) → Ch. 17–19 (periop). These chapters appear on 80%+ of med-surg exams built from Lewis across US nursing programs.
How the Lewis 12th Edition Test Bank Maps to These Chapters
The MedTestBank Lewis 12th Edition Test Bank provides exam-style questions for every chapter listed above — organized in the exact same unit and chapter sequence as the textbook. Each question is written in NCLEX clinical reasoning style: a patient scenario, four answer options, and a detailed rationale explaining why each option is correct or incorrect.
Unlike Quizlet flashcards (which test memorization) or generic nursing question banks (which don't map to Lewis chapter organization), the Lewis test bank gives you questions that directly reflect what your professor is teaching and how the NCLEX will test the same content.
Q: How many questions are in the Lewis 12th Edition test bank?
The Lewis 12th Edition test bank on MedTestBank provides comprehensive chapter-by-chapter coverage across all 69 chapters and 12 units, giving you hundreds of NCLEX-style questions with full rationales. Enough to practice every major clinical concept multiple times before your exam.
Q: Which chapters should I focus on for NCLEX prep specifically?
For NCLEX, prioritize the cardiovascular unit (Ch. 31–37), respiratory unit (Ch. 27–29), diabetes and endocrine (Ch. 48–50), renal (Ch. 44–45), and neurological problems (Ch. 56–60). These units collectively account for the majority of NCLEX physiological integrity questions — the single largest NCLEX category.
Q: Is this the same as the official Elsevier Evolve test bank?
MedTestBank provides original practice questions written in the Lewis 12th edition exam-style format — not affiliated with Elsevier or the official Evolve platform. Our test bank is an independent practice resource designed to complement Lewis coursework and NCLEX preparation.
🏥 Get the Lewis 12th Edition Test Bank — $15.99
Chapter-by-chapter questions for all 69 chapters. NCLEX-style clinical reasoning format. Full rationales. Instant PDF download. MedTestBank's #1 bestseller — 5 sales in one month.