Must-Know Med-Surg NCLEX Topics to Pass on the First Try
Introduction: The Significance of Medical-Surgical Nursing for the NCLEX
Let us be candid—medical-surgical nursing may appear as a formidable challenge in NCLEX preparation. It encompasses all aspects from cardiovascular emergency to postoperative treatment and chronic diseases. However, the reality is as follows:
Med-Surg constitutes not merely a segment of the NCLEX; it serves as the cornerstone.
The majority of NCLEX questions predominantly focus on medical-surgical scenarios, either directly or through inquiries that assess your capacity to prioritize treatment, handle problems, or comprehend pathophysiology.

This guide will delineate the essential Med-Surg themes that are most probable to feature on your NCLEX examination. This blog article serves as your guide, whether you are preparing for the NGN (Next Generation NCLEX) or your final nursing semester.
- Cardiovascular System: High-Yield NCLEX Topics—Myocardial Infarction (MI)
Heart failure (particularly left-sided versus right-sided)
Management of hypertension
Fundamentals of ECG interpretation (particularly atrial fibrillation and premature ventricular contractions)
Nursing interventions for thoracic discomfort
Post-cardiac catheterization management
Peripheral arterial disease versus venous disease
💡 Focus Areas: Understand the signs and symptoms, potential consequences, and priority actions. If a patient presents with chest pain and is postoperative, should you contact the physician, administer nitroglycerin, or evaluate vital signs first?
Recommendation: Acquire proficiency in ABCs (Airway, Breathing, Circulation) and employ prioritization frameworks such as Maslow’s Hierarchy and the distinction between acute and chronic conditions.
- Respiratory System High-Yield NCLEX Topics: Pneumonia and COPD Management
Pulmonary embolism (PE)
Management of chest tube
Tracheostomy aspiration
Acute Respiratory Distress Syndrome (ARDS)
Oxygen administration systems
Concentrate on respiratory evaluations (e.g., crackles versus wheezing), complications (e.g., tension pneumothorax), and oxygenation techniques.
Example NCLEX-style question: A patient with COPD receiving 2 L oxygen via nasal cannula exhibits drowsiness—what is your initial action?
Reduce oxygen levels and inform the provider. Excessive oxygen can inhibit respiratory drive in persons with COPD.
- Gastrointestinal System High-Yield NCLEX Topics: Gastrointestinal hemorrhages and nasogastric tube management
Cirrhosis of the liver with hepatic encephalopathy
Ulcerative colitis versus Crohn’s disease
Postoperative care for bowel resection
Ostomy management
Pancreatitis
💡 Key Areas of Emphasis: Understand laboratory values (AST, ALT, ammonia), dietary limitations, and essential nursing assessments such as monitoring for hemorrhage, guarding, or abdominal distension.
Essential advice: Liver failure increases the risk of hemorrhage, cognitive disorientation, and asterixis (tremulous hand movements).
- Neurological System High-Yield NCLEX Topics: Stroke (ischemic versus hemorrhagic)
Elevated intracranial pressure (ICP)
Management of seizures
Spinal cord damage
Meningitis
Glasgow Coma Scale (GCS)
💡 Key Areas of Emphasis: The NCLEX frequently assesses the identification of neurological alterations (e.g., an abrupt decline in level of consciousness) and critical interventions like positioning, pharmacological treatments (e.g., mannitol), or airway management.
Important Note: Position post-stroke patients on their unaffected side and refrain from providing food until the gag reflex has been evaluated.
- Hematologic and Immune Disorders: Critical NCLEX Subjects with Elevated Yield:
Types of anemia (iron-deficiency, sickle cell)
Leukemia
Precautions for Neutropenia
Management of HIV/AIDS
Reactions to blood transfusions
💡 Key Considerations: Recognize the indicators of adverse responses, including chills, pruritus, and lumbar pain, and the appropriate response (CEASE the infusion, maintain the line with normal saline, and inform the healthcare practitioner).
🔬 6. Endocrine System 💥 High-Yield NCLEX Topics: Diabetes Mellitus (Type 1 versus Type 2)
Diabetic Ketoacidosis (DKA) versus Hyperglycemic Hyperosmolar State (HHS)—diabetic emergencies
Symptoms of hypoglycemia
Thyroid issues (hyperthyroidism vs. hypothyroidism)
Addison’s disease versus Cushing’s disease
SIADH vs Diabetes Insipidus
💡 Areas of Emphasis: These illnesses are characterized by electrolyte imbalances, fluctuations in blood pressure, and mood disturbances, making them essential content for the NCLEX examination.
Recall this combination:
Addison’s disease necessitates the supplementation of hormones.
Cushing’s syndrome is characterized by an excess of cortisol.
- Renal and Genitourinary System Key NCLEX Topics: Acute Kidney Injury (AKI) and Chronic Kidney Disease (CKD)
Dialysis management (particularly hemodialysis fistula precautions)
Prevention and treatment of urinary tract infections
Electrolyte imbalances, particularly with potassium and calcium.
💡 Areas of Emphasis: Familiarize yourself with your laboratory procedures! Elevated blood urea nitrogen, creatinine, and hyperkalemia are commonly assessed.
Clinical guideline: Do not administer potassium prior to assessing renal function. Impaired kidney function can render potassium lethal.
Mental Health in Medical-Surgical Nursing: Key NCLEX Topics—Delirium vs Dementia
Postoperative depression or depression in chronic disease
Patient’s denial of medical treatment
Therapeutic discourse
💡 Areas of Emphasis: In Med-Surg, you will encounter questions that assess your capacity to demonstrate empathy, uphold autonomy, and prioritize safety over personal convictions.
🧬 9. Electrolyte Imbalances & Lab Values
💥 Critical Lab Values to Know:
Lab | Normal Range | Danger |
---|---|---|
Sodium (Na⁺) | 135–145 mEq/L | <120 = seizures |
Potassium (K⁺) | 3.5–5.0 mEq/L | >6.5 = cardiac arrest |
Calcium (Ca²⁺) | 8.5–10.5 mg/dL | <7 = tetany |
Creatinine | 0.6–1.2 mg/dL | ↑ = renal failure |
Hemoglobin | 12–17 g/dL | <7 = transfusion |
Platelets | 150,000–400,000 | <50,000 = bleeding |
Light Bulb Areas of Concentration:
Understand the indicators, manifestations, and nursing interventions for hypo/hyper states. For instance:
Hyperkalemia leads to muscle cramps, electrocardiogram alterations, and cardiac arrest.
Hyponatremia leads to confusion, convulsions, and coma.
- Prioritization and Delegation in Medical-Surgical Nursing
The NCLEX encompasses not only knowledge but also the provision of safe and efficient treatment.
💥 Fundamental Concepts: Whom do you observe initially?
Which responsibilities can be assigned to a Licensed Practical Nurse (LPN) or Unlicensed Assistive Personnel (UAP)?
Under what circumstances is immediate notification of the provider necessary?
Prioritization Frameworks: ABCs (Airway, Breathing, Circulation)
Maslow’s Hierarchy of Needs
Stable versus Unstable
Acute versus Chronic
Anticipated vs. Unforeseen

Sample Question: A postoperative patient abruptly exhibits confusion. Do you possess:
A) Contact family. B) Record C) Assess oxygen levels
Administer sedative.
✅ Correct: C) Assess oxygen levels—potential hypoxia.
Practice Strategy Recommendations for Med-Surg NCLEX Inquiries: Engage in Comprehensive Understanding Beyond Mere Memorization.
Concentrate on comprehending pathophysiology rather than merely memorizing information.
Utilize Case-Based Inquiries
Particularly NGN-style case studies that replicate authentic nursing judgment.
✅ Engage in NCLEX Question Practice Utilize applications, literature, and digital assessments (such as UWorld, NurseAchieve, and Kaplan) to enhance your cognitive abilities for test-oriented reasoning.
✅ Examine Rationales—Even When You Are Correct, Understand the rationale, not merely the outcome.
📌 Supplementary: Premier Resources for Examining Med-Surg NCLEX Subjects
Saunders NCLEX Examination Review Book
UWorld NCLEX Question Bank
SimpleNursing Videos available on YouTube
Nurse Sarah (Registered Nurse, RN)
Picmonic and Osmosis for visual learners
🏁 Conclusion:
Med-Surg Is Not Adversarial—It Is Your Strategic Asset
Familiarity with the Med-Surg fundamentals will enable you to approach the NCLEX with assurance.
Prioritize your studies utilizing high-yield strategies.
Acquire the ability to think critically as a nurse, rather than merely focusing on rote memorization.
Employ analytical frameworks and pragmatic practice inquiries.