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
Which clinical indicator is the most accurate reflection of a patient’s fluid balance status?
A. Skin turgor assessed on the sternum
B. Daily weights at the same time every morning
C. Intake and output records over 24 hours
D. Presence of pitting edema in lower extremities
Answer: B
Rationale
Daily weights are the most reliable indicator of fluid volume changes. One kilogram of weight gain or loss is equal to
approximately one liter of fluid. 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.
Question 2
A nurse is caring for a patient with a potassium level of 6.2 mEq/L. Which cardiac change should the nurse monitor for
on the ECG?
A. Prominent U waves
B. ST-segment depression
C. Prolonged QT interval
D. Tall, peaked T waves
Answer: D
Rationale
Hyperkalemia (potassium > 5.0 mEq/L) typically causes tall, peaked T waves and widened QRS complexes on an ECG.
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.
Question 3
When administering an enteral feeding via a nasogastric tube, which pH level indicates the tube is correctly positioned
in the stomach?
A. pH of 7.0 or higher
B. pH of 6.0 to 7.0
C. pH of 1.0 to 4.0
D. pH of 5.5 to 6.0
Answer: C
Rationale
Gastric contents are acidic, typically ranging from pH 1.0 to 4.0. A pH higher than 6.0 may indicate the tube is in the lungs or
intestines. 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
Which clinical indicator is the most accurate reflection of a patient’s fluid balance status?
A. Skin turgor assessed on the sternum
B. Daily weights at the same time every morning
C. Intake and output records over 24 hours
D. Presence of pitting edema in lower extremities
Answer: B
Rationale
Daily weights are the most reliable indicator of fluid volume changes. One kilogram of weight gain or loss is equal to
approximately one liter of fluid. 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.
Question 2
A nurse is caring for a patient with a potassium level of 6.2 mEq/L. Which cardiac change should the nurse monitor for
on the ECG?
A. Prominent U waves
B. ST-segment depression
C. Prolonged QT interval
D. Tall, peaked T waves
Answer: D
Rationale
Hyperkalemia (potassium > 5.0 mEq/L) typically causes tall, peaked T waves and widened QRS complexes on an ECG.
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.
Question 3
When administering an enteral feeding via a nasogastric tube, which pH level indicates the tube is correctly positioned
in the stomach?
A. pH of 7.0 or higher
B. pH of 6.0 to 7.0
C. pH of 1.0 to 4.0
D. pH of 5.5 to 6.0
Answer: C
Rationale
Gastric contents are acidic, typically ranging from pH 1.0 to 4.0. A pH higher than 6.0 may indicate the tube is in the lungs or
intestines. 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
