NUR 155
FOUNDATIONS OF NURSING
NUR 155 Exam 3 Foundations of Nursing Comprehensive Review
UPDATE
50 Multiple-Choice Questions
Complete Answers with Detailed Rationales
Aligned with Nursing Foundations & Med-Surg Standards
Galen College of Nursing
For academic study and exam review • Verify with current course materials
,NUR 155 Exam 3 Foundations of Nursing Comprehensive Review D | 2026/2027
How to Use This Review
This comprehensive exam review contains high-yield multiple-choice questions. Each item includes the correct answer
and an expanded rationale explaining the underlying principle, why the correct option is preferred, and why distractors are
incorrect. Study tip: Attempt each question before reading the answer, then carefully review the rationale.
Page 2
, NUR 155 Exam 3 Foundations of Nursing Comprehensive Review D | 2026/2027
Question 1
When assessing a patient with a Stage 3 pressure injury, which clinical finding should the nurse expect to document?
A. Partial-thickness loss of dermis presenting as a shallow open ulcer
B. Non-blanchable erythema of intact skin over a bony prominence
C. Full-thickness tissue loss with visible subcutaneous fat but no bone or muscle exposure
D. Full-thickness tissue loss with exposed bone, tendon, or muscle
Answer: C
Rationale
Stage 3 pressure injuries involve full-thickness skin loss involving damage to or necrosis of subcutaneous tissue that may
extend down to, but not through, underlying fascia. Bone and muscle are not exposed in Stage 3.
Question 2
A nurse is preparing to administer an intramuscular injection to an obese patient. Which needle length and angle of
insertion should the nurse select?
A. 5/8 inch needle at a 45-degree angle
B. 1.5 to 3 inch needle at a 90-degree angle
C. 1 to 1.5 inch needle at a 90-degree angle
D. 2 inch needle at a 45-degree angle
Answer: B
Rationale
Obese patients require longer needles (1.5 to 3 inches) to ensure the medication reaches the muscle tissue rather than
staying in the subcutaneous layer. All IM injections are administered at a 90-degree angle.
Question 3
Which assessment finding most accurately indicates that a patient is experiencing early signs of hypoxia?
A. Restlessness and tachycardia
B. Bradypnea and hypotension
C. Cyanosis of the mucous membranes
D. Clubbing of the fingers
Answer: A
Rationale
Restlessness, anxiety, and tachycardia are early signs of hypoxia as the body attempts to compensate for low oxygen levels.
Cyanosis and bradycardia are late signs. Understanding this concept is essential for safe clinical decision-making. Incorrect
choices often reflect common misconceptions. Always link assessment findings to the primary process and anticipated
complications.
Page 3
FOUNDATIONS OF NURSING
NUR 155 Exam 3 Foundations of Nursing Comprehensive Review
UPDATE
50 Multiple-Choice Questions
Complete Answers with Detailed Rationales
Aligned with Nursing Foundations & Med-Surg Standards
Galen College of Nursing
For academic study and exam review • Verify with current course materials
,NUR 155 Exam 3 Foundations of Nursing Comprehensive Review D | 2026/2027
How to Use This Review
This comprehensive exam review contains high-yield multiple-choice questions. Each item includes the correct answer
and an expanded rationale explaining the underlying principle, why the correct option is preferred, and why distractors are
incorrect. Study tip: Attempt each question before reading the answer, then carefully review the rationale.
Page 2
, NUR 155 Exam 3 Foundations of Nursing Comprehensive Review D | 2026/2027
Question 1
When assessing a patient with a Stage 3 pressure injury, which clinical finding should the nurse expect to document?
A. Partial-thickness loss of dermis presenting as a shallow open ulcer
B. Non-blanchable erythema of intact skin over a bony prominence
C. Full-thickness tissue loss with visible subcutaneous fat but no bone or muscle exposure
D. Full-thickness tissue loss with exposed bone, tendon, or muscle
Answer: C
Rationale
Stage 3 pressure injuries involve full-thickness skin loss involving damage to or necrosis of subcutaneous tissue that may
extend down to, but not through, underlying fascia. Bone and muscle are not exposed in Stage 3.
Question 2
A nurse is preparing to administer an intramuscular injection to an obese patient. Which needle length and angle of
insertion should the nurse select?
A. 5/8 inch needle at a 45-degree angle
B. 1.5 to 3 inch needle at a 90-degree angle
C. 1 to 1.5 inch needle at a 90-degree angle
D. 2 inch needle at a 45-degree angle
Answer: B
Rationale
Obese patients require longer needles (1.5 to 3 inches) to ensure the medication reaches the muscle tissue rather than
staying in the subcutaneous layer. All IM injections are administered at a 90-degree angle.
Question 3
Which assessment finding most accurately indicates that a patient is experiencing early signs of hypoxia?
A. Restlessness and tachycardia
B. Bradypnea and hypotension
C. Cyanosis of the mucous membranes
D. Clubbing of the fingers
Answer: A
Rationale
Restlessness, anxiety, and tachycardia are early signs of hypoxia as the body attempts to compensate for low oxygen levels.
Cyanosis and bradycardia are late signs. Understanding this concept is essential for safe clinical decision-making. Incorrect
choices often reflect common misconceptions. Always link assessment findings to the primary process and anticipated
complications.
Page 3
