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NR 224/ NR224 Fundamentals of Nursing Exam 4 (Latest 2026/2027 Update) | Complete Exam Questions with Verified Answers and Detailed Rationales | Wound Care, Perioperative Nursing, Elimination, Delegation | A+ Graded | Chamberlain University

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INSTANT PDF DOWNLOAD - This is the comprehensive Exam 4 study guide for NR 224 Fundamentals of Nursing Skills at Chamberlain University (Latest 2026/2027 Update), featuring verified exam questions with correct answers and detailed rationales. Covers oxygenation and oxygen delivery devices (nasal cannula 1-6L 24-44%, simple mask 5-8L 40-60%, nonrebreather 10-15L 80-95%), pulse oximetry interpretation, incentive spirometry, tracheostomy care and suctioning, chest tube management (water seal chamber tidaling, continuous bubbling indicates air leak), pressure injury staging (Stage 1 nonblanchable erythema through Stage 4 full thickness with bone exposure), Braden Scale risk assessment, sterile technique for wound care, perioperative nursing and postoperative complications (hemorrhage, infection, DVT, wound dehiscence/evisceration), urinary catheterization and CAUTI prevention, bowel elimination and ostomy care, delegation principles including five rights and TAPE framework, RN/LPN/UAP scope of practice, and fall prevention protocols. INSTANT DIGITAL DOWNLOAD (PDF) immediately upon purchase. Fully text-searchable, printable, and accessible anytime. Trusted by Chamberlain nursing students for exam success. 100% satisfaction guarantee. NR 224 Fundamentals Exam 4 NR224 Wound Care Oxygenation Elimination Oxygen Delivery Nasal Cannula 1 to 6 Liters 24 to 44 Percent Simple Face Mask 5 to 8 Liters 40 to 60 Percent Nonrebreather Mask 10 to 15 Liters 80 to 95 Percent Pulse Oximetry Normal SpO2 95 to 100 Percent Incentive Spirometry Prevent Atelectasis Tracheostomy Suctioning Preoxygenate 10 to 15 Seconds Chest Tube Water Seal Tidaling Normal Chest Tube Continuous Bubbling Air Leak Pressure Ulcer Stage 1 Nonblanchable Erythema Pressure Ulcer Stage 2 Partial Thickness Skin Loss Pressure Ulcer Stage 3 Full Thickness Subcutaneous Fat Pressure Ulcer Stage 4 Full Thickness Muscle Bone Braden Scale Lower Score Higher Risk Sterile Technique Surgical Asepsis Wound Dehiscence Partial Separation Wound Layers Wound Evisceration Organs Visible Sterile Saline Soaked Gauze Emergency Urinary Catheter CAUTI Prevention Ostomy Stoma Healthy Pink Moist Delegation Five Rights Task Circumstance Person Direction Supervision TAPE Framework Task Authority Prior Experience Environment RN Scope Assessment Diagnosis Planning Evaluation LPN Scope Data Collection Stable Patients UAP Scope ADLs Vital Signs Noninvasive Fall Prevention Bed Alarm A+ Grade Nursing Study Guide

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Nursing Fundamentals




4 MAXE
NF Foundations of Professional Nursing Practice
CARING · COMPETENCE · COMPASSION
FUNDAMENTALS




Exam 4 — Fundamentals
S L E E P, E L I M I N AT I O N , S E L F - CO N C E PT, CO M M U N I C AT I O N & E N D - O F - L I F E C A R E

INSTITUTION Nursing Fundamentals Program COURSE CODE NURS 101 — Fundamentals
PROGRAM Associate / Bachelor of Science in Nursing ACADEMIC YEAR
EXAM TITLE Exam 4 — Fundamentals of Nursing TOTAL QUESTIONS 100+ Questions (Complete)
COURSE TITLE Fundamentals of Nursing FORMAT Multiple Choice — Select the Single Best Answer


EXAMINATION INSTRUCTIONS
▸ Select the single best answer for each question.
▸ All 100+ questions from the provided study material are included with correct answers and clinical rationales.


SLEEP, ELIMINATION, SELF-CONCEPT, COMMUNICATION & END-OF-LIFE Questions 1 – 100+

1. Rest is best defined as:
A. Unconsciousness with rapid eye movement.
B. A state of decreased activity that results in feeling refreshed.
C. Complete immobility.
D. Deep sleep only.
CORRECT ANSWER B — Rest = decreased activity resulting in refreshment. Sleep = altered consciousness with relative inactivity. Both are essential for health.

RATIONALE Functions of rest: energy conservation, stress reduction, mental/cognitive clarity, pain management, healing. Functions of sleep: physical restoration, cognitive function, memory
consolidation, emotional regulation, immune function, metabolism.


2. Stage 3 of NREM sleep is characterized by:
A. Light transitional sleep — 5% of total sleep cycle.
B. Deep sleep with low-frequency, high-amplitude delta waves (slow-wave sleep) — the immune system strengthens.
C. REM sleep with dreaming and increased brain activity.
D. Deeper light sleep with decreased respirations, HR, and temperature.
CORRECT ANSWER B — Stage 3 = deep/slow-wave sleep. Stage 1 = light transitional (5%). Stage 2 = deeper light (HR/RR/temp ↓). Stage 4/REM = dreaming, HR/BP ↑, muscle atonia, 20-25% of
sleep, begins ~90 min after falling asleep.
RATIONALE One sleep cycle = 90-110 minutes. Circadian rhythm = internal 24-hour sleep-wake cycle regulated by the suprachiasmatic nucleus. The hippocampus converts short-term to long-
term memory during sleep.


3. Insomnia is defined as:
A. Excessive daytime fatigue without improvement after more sleep.
B. An ongoing inability to sleep despite having the opportunity — can present as difficulty falling asleep, staying asleep, waking early, or feeling tired upon waking.
C. Sudden uncontrollable sleep attacks with direct REM entry.
D. Recurrent episodes of upper airway collapse during sleep.
CORRECT ANSWER B — Insomnia = difficulty initiating or maintaining sleep. Hypersomnia = excessive daytime fatigue despite adequate sleep. Narcolepsy = sudden sleep attacks. Obstructive
sleep apnea = airway collapse.
RATIONALE Central sleep apnea = brain fails to transmit signals to respiratory muscles. Sleep deprivation affects higher-order cognition, impairs judgment, decreases response time, and can
trigger seizures, migraines, and tension headaches.


4. Tryptophan-rich foods that promote sleep include:
A. Caffeinated beverages.
B. Chicken breast, turkey, milk, nuts, seeds — tryptophan is a precursor to serotonin and melatonin.
C. High-sugar snacks.
D. Spicy foods.
CORRECT ANSWER B — Tryptophan → serotonin → melatonin pathway promotes sleep. Complex carbohydrates help tryptophan cross the blood-brain barrier. Magnesium-rich foods (leafy
greens, nuts) promote muscle relaxation.
RATIONALE Melatonin-boosting foods: tart cherries, walnuts, bananas. Herbs for sleep: lavender, chamomile, ashwagandha, valerian root. Avoid caffeine, alcohol, and large meals close to
bedtime. Pharmacological: melatonin, antihistamines, benzodiazepines (short-term only).

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