Physiological Integrity Practice Tests

Tackle the Physiological Integrity domain with clinically rich items spanning assessment, pathophysiology, and interventions—from basic comfort to complex emergencies and unexpected therapy responses.

The Physiological Integrity category carries the largest share of the NCLEX-RN and tests whether you can deliver safe, effective care for patients with actual or potential health problems. It spans the core of bedside practice—assessment, clinical judgment, priority interventions, and evaluation of outcomes—across medical-surgical and specialty settings.

Key subcategories include: Basic Care and Comfort (hygiene, mobility, nutrition, elimination, pain/comfort), Pharmacological and Parenteral Therapies (medication administration, dosage calculation, IV/CVAD care, transfusions, TPN, adverse effects), Reduction of Risk Potential (diagnostic tests, lab values, abnormal findings, peri-/post-op complications), and Physiological Adaptation (acute/chronic conditions, fluid & electrolyte imbalances, hemodynamics, shock/sepsis, respiratory and cardiac compromise, neuro changes).

Because this domain yields the highest number of NCLEX questions, our Physiological Integrity practice tests offer many NCLEX-style items organized by subtopic and body system, with realistic difficulty and exam-ready phrasing. Use these sets to target high-yield areas (e.g., electrolytes, insulin & IV drips, ABGs, heart rhythms, prioritization during emergencies) and to build the clinical reasoning you need to pass the NCLEX on your first attempt.

🔹 Example NCLEX Questions – Physiological Integrity

Example Question 1

A nurse is caring for a client who is receiving intravenous potassium chloride. Which assessment finding requires immediate intervention?

A. Mild pain at the IV insertion site
B. Urine output of 35 mL/hour
C. Cardiac rhythm showing peaked T waves
D. Blood pressure of 138/84 mmHg

Correct Answer: Cardiac rhythm showing peaked T waves

Explanation:
Physiological Integrity questions prioritize recognition of life-threatening complications related to body systems and therapies. Peaked T waves are a classic sign of hyperkalemia, which can rapidly progress to lethal cardiac dysrhythmias. This finding requires immediate action to prevent cardiac arrest. Mild IV discomfort, adequate urine output, and a mildly elevated blood pressure are not immediately life-threatening.

Example Question 2

A client with chronic obstructive pulmonary disease (COPD) is receiving oxygen via nasal cannula at 4 L/min. Which finding indicates the nurse should adjust the plan of care?

A. Oxygen saturation of 90%
B. Respiratory rate of 18 breaths/min
C. Increasing drowsiness and confusion
D. Use of accessory muscles during activity

Correct Answer: Increasing drowsiness and confusion

Explanation:
In clients with COPD, excessive oxygen administration can suppress respiratory drive and lead to carbon dioxide retention. Increasing drowsiness and confusion are signs of CO₂ narcosis and indicate impaired gas exchange. Physiological Integrity focuses on monitoring body system responses and recognizing unexpected or dangerous reactions to therapy, making this finding a priority.

Why Physiological Integrity Matters on NCLEX

Physiological Integrity is the largest and most heavily tested NCLEX category. It evaluates a nurse’s ability to manage acute and chronic conditions, monitor body system function, recognize complications, and respond appropriately to changes in client status. Questions often involve respiratory, cardiovascular, neurologic, renal, and endocrine systems, as well as fluid and electrolyte balance and responses to medications or procedures.

How to Study Physiological Integrity Effectively

Focus on understanding pathophysiology, recognizing early warning signs, and identifying life-threatening changes. When answering questions, ask: Which finding indicates instability or failure of a vital body system? Prioritize airway, breathing, circulation, and neurologic status before addressing less urgent concerns.