P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
NSG 3850 Exam 1-4 Prep:
Comprehensive Nursing
Course Questions and Answers
280+
281
Verified Answers Exam Ready With Rationales
281 Short Answer · 2 Dosage Calc QUESTIONS
DOCUMENT OVERVIEW
This examination package contains 281 expertly curated questions across 4
critical modules . Each question is accompanied by a verified correct answer and
a detailed rationale designed to reinforce understanding and retention. This
2025/26-updated resource covers essential concepts, clinical applications, and
evidence-based practice — suitable for certification preparation, academic review,
and professional development. See the Table of Contents below for the full module
breakdown and question ranges.
CONTENTS
01 NSG 3850 Exam 1 Q1–Q76
02 NSG 3850 Exam 2 Q77–Q136
, 03 NSG 3850 Exam 3 Q137–Q192
04 NSG 3850 Exam 4 Q193–Q281
MODULE 1 OF 4
NSG 3850 Exam 1
76 Questions Q1–Q76
Q1 QUESTION 1 OF 281 NSG 3850 Exam 1
Decreased neuromuscular excitability is often the result of
a. hypercalcemia and hypermagnesemia
b. hypomagnesemia and hyperkalemia
c. hypocalcemia and hypokalemia
d. hypernatremia and hypomagnesemia
CORRECT ANSWER
A
RATIONALE
Both hypercalcemia and hypermagnesemia depress neuronal membrane excitability by
antagonizing sodium influx, thereby stabilizing the cell membrane and reducing the
likelihood of action potential generation. This principle of electrolyte-induced
membrane stabilization explains the decreased neuromuscular excitability seen in
these conditions.
, Q2 QUESTION 2 OF 281 NSG 3850 Exam 1
What is likely to lead to hyponatremia?
a. insufficient ADH secretion
b. excess aldosterone secretion
c. administration of IV normal saline
d. frequent NG tube irrigation with water
CORRECT ANSWER
D
RATIONALE
Frequent irrigation of an NG tube with plain water can lead to dilutional hyponatremia
as excess free water is absorbed, diluting serum sodium. This occurs because water is
absorbed osmotically, overwhelming the kidneys' ability to excrete free water and
leading to a decrease in serum sodium concentration.
Q3 QUESTION 3 OF 281 NSG 3850 Exam 1
An increase int he resting membrane potential (hyperpolarizied) is associated with
a. hypokalemia
b. hyperkalemia
c. hypocalcemia
d. hypercalcemia
CORRECT ANSWER
A
RATIONALE
Hypokalemia causes hyperpolarization by increasing the extracellular-to-intracellular
potassium gradient, making it harder for potassium to efflux and thus requiring a more
negative potential to reach threshold. This shift in the potassium equilibrium potential
directly increases the resting membrane potential, making the cell membrane more
negative and thus less excitable.
, Q4 QUESTION 4 OF 281 NSG 3850 Exam 1
Abnormalities in intracellular regulation of enzyme activity and cellular production of
ATP are associated with
a. hyponatremia
b. hypocalcemia
c. hypophosphatemia
d. hypokalemia
CORRECT ANSWER
C
RATIONALE
Hypophosphatemia impairs cellular energy production by disrupting ATP synthesis and
interfering with intracellular enzyme function, leading to widespread cellular
dysfunction. This directly addresses the question's focus on intracellular regulation of
enzyme activity and ATP production.
Q5 QUESTION 5 OF 281 NSG 3850 Exam 1
The fraction of total body water (TBW) volume contained in the intracellular space in
adults is
a. three fourths
b. two thirds
c. one half
d. one third
CORRECT ANSWER
B
RATIONALE
The intracellular fluid compartment constitutes approximately two-thirds of the total
body water in adults, reflecting the substantial volume of water within cells. This
distribution is a fundamental principle of fluid physiology and electrolyte balance.
NSG 3850 Exam 1-4 Prep:
Comprehensive Nursing
Course Questions and Answers
280+
281
Verified Answers Exam Ready With Rationales
281 Short Answer · 2 Dosage Calc QUESTIONS
DOCUMENT OVERVIEW
This examination package contains 281 expertly curated questions across 4
critical modules . Each question is accompanied by a verified correct answer and
a detailed rationale designed to reinforce understanding and retention. This
2025/26-updated resource covers essential concepts, clinical applications, and
evidence-based practice — suitable for certification preparation, academic review,
and professional development. See the Table of Contents below for the full module
breakdown and question ranges.
CONTENTS
01 NSG 3850 Exam 1 Q1–Q76
02 NSG 3850 Exam 2 Q77–Q136
, 03 NSG 3850 Exam 3 Q137–Q192
04 NSG 3850 Exam 4 Q193–Q281
MODULE 1 OF 4
NSG 3850 Exam 1
76 Questions Q1–Q76
Q1 QUESTION 1 OF 281 NSG 3850 Exam 1
Decreased neuromuscular excitability is often the result of
a. hypercalcemia and hypermagnesemia
b. hypomagnesemia and hyperkalemia
c. hypocalcemia and hypokalemia
d. hypernatremia and hypomagnesemia
CORRECT ANSWER
A
RATIONALE
Both hypercalcemia and hypermagnesemia depress neuronal membrane excitability by
antagonizing sodium influx, thereby stabilizing the cell membrane and reducing the
likelihood of action potential generation. This principle of electrolyte-induced
membrane stabilization explains the decreased neuromuscular excitability seen in
these conditions.
, Q2 QUESTION 2 OF 281 NSG 3850 Exam 1
What is likely to lead to hyponatremia?
a. insufficient ADH secretion
b. excess aldosterone secretion
c. administration of IV normal saline
d. frequent NG tube irrigation with water
CORRECT ANSWER
D
RATIONALE
Frequent irrigation of an NG tube with plain water can lead to dilutional hyponatremia
as excess free water is absorbed, diluting serum sodium. This occurs because water is
absorbed osmotically, overwhelming the kidneys' ability to excrete free water and
leading to a decrease in serum sodium concentration.
Q3 QUESTION 3 OF 281 NSG 3850 Exam 1
An increase int he resting membrane potential (hyperpolarizied) is associated with
a. hypokalemia
b. hyperkalemia
c. hypocalcemia
d. hypercalcemia
CORRECT ANSWER
A
RATIONALE
Hypokalemia causes hyperpolarization by increasing the extracellular-to-intracellular
potassium gradient, making it harder for potassium to efflux and thus requiring a more
negative potential to reach threshold. This shift in the potassium equilibrium potential
directly increases the resting membrane potential, making the cell membrane more
negative and thus less excitable.
, Q4 QUESTION 4 OF 281 NSG 3850 Exam 1
Abnormalities in intracellular regulation of enzyme activity and cellular production of
ATP are associated with
a. hyponatremia
b. hypocalcemia
c. hypophosphatemia
d. hypokalemia
CORRECT ANSWER
C
RATIONALE
Hypophosphatemia impairs cellular energy production by disrupting ATP synthesis and
interfering with intracellular enzyme function, leading to widespread cellular
dysfunction. This directly addresses the question's focus on intracellular regulation of
enzyme activity and ATP production.
Q5 QUESTION 5 OF 281 NSG 3850 Exam 1
The fraction of total body water (TBW) volume contained in the intracellular space in
adults is
a. three fourths
b. two thirds
c. one half
d. one third
CORRECT ANSWER
B
RATIONALE
The intracellular fluid compartment constitutes approximately two-thirds of the total
body water in adults, reflecting the substantial volume of water within cells. This
distribution is a fundamental principle of fluid physiology and electrolyte balance.
