NR 324 Adult Health I (Med-Surg 1) Final
2026 ACTUAL EXAM QUESTIONS AND
ANSWERS WITH RATIONALES LATEST
VERSION (2026/2027)
2026/2027 Frequently Most Tested Questions and 100%
Accurate From Past papers | Graded A+ , Reviewed and
Updated | 100% Guarantee Pass | Latest Exam and Newest
Version!!!
Question:
What age group has the highest percentage of water content?
a. Older adults
b. Adolescents
c. Preterm infants / Neonates
d. Young adults
✔️ Correct Answer: C
Rationale:
Preterm infants and neonates have the highest total body water content due to
immature body systems and a higher proportion of extracellular fluid. Total body water
decreases with age as body fat increases and lean mass proportionally decreases.
Preterm infants may have up to 80% body water, while older adults may have as little as
45-50%.
ICF makes up what percent of total body weight?
a. 20%
b. 30%
,c. 40%
d. 60%
✔️ Correct Answer: C
Rationale:
Intracellular fluid (ICF) accounts for approximately 40% of total body weight and
represents the fluid contained within cells, making it the largest fluid compartment in the
body. Extracellular fluid (ECF) makes up about 20% of total body weight, with 15%
interstitial and 5% intravascular (plasma).
What are the two main compartments containing ECF?
a. Intracellular and transcellular
b. Interstitial fluid and intravascular (plasma) fluid
c. Plasma and lymphatic fluid
d. Cerebrospinal and synovial fluid
✔️ Correct Answer: B
Rationale:
Extracellular fluid (ECF) is divided into interstitial fluid (fluid between cells) and
intravascular fluid (plasma within blood vessels). These compartments maintain
circulation and tissue perfusion. Transcellular fluid (Option C) is a specialized subset of
ECF.
Transcellular fluid includes:
a. Blood plasma and lymph
b. Cerebrospinal fluid, GI fluids, synovial, pleural, peritoneal, intraocular, and pericardial
fluids
c. Intracellular fluid and interstitial fluid
d. Plasma and interstitial fluid
✔️ Correct Answer: B
Rationale:
Transcellular fluid is a specialized subset of extracellular fluid found in body cavities and
,lined spaces, serving lubrication, protection, and transport functions. Examples include
cerebrospinal fluid (CSF), gastrointestinal fluids, synovial fluid, pleural fluid, peritoneal
fluid, intraocular fluid, and pericardial fluid.
1 L of water = _____ lb.
a. 1.0 lb
b. 1.5 lb
c. 2.2 lb
d. 3.0 lb
✔️ Correct Answer: C
Rationale:
One liter of water is equivalent to one kilogram, which equals approximately 2.2 pounds.
This conversion is commonly used in fluid balance and weight assessment. Weight
changes of 1 kg (2.2 lb) typically represent fluid shifts.
The concentrations of electrolytes in body fluids is expressed in _______.
a. Milligrams per deciliter (mg/dL)
b. Milliequivalents (mEq) per liter
c. Millimoles per liter (mmol/L)
d. Grams per liter (g/L)
✔️ Correct Answer: B
Rationale:
Electrolyte concentration is measured in milliequivalents per liter (mEq/L), which reflects
both the chemical activity and charge of ions in body fluids. This measurement accounts
for the valence (charge) of the electrolyte, making it more clinically useful than mg/dL for
assessing electrolyte imbalances.
What are the main ions found in the ECF and ICF?
, a. ECF: Potassium (K+); ICF: Sodium (Na+)
b. ECF: Sodium (Na+); ICF: Potassium (K+)
c. ECF: Chloride (Cl-); ICF: Bicarbonate (HCO3-)
d. ECF: Calcium (Ca2+); ICF: Magnesium (Mg2+)
✔️ Correct Answer: B
Rationale:
Sodium is the primary extracellular cation, while potassium is the primary intracellular
cation. This distribution is maintained by the sodium-potassium pump (Na+/K+ ATPase)
and is essential for maintaining fluid balance, membrane potential, and cellular function.
Hypovolemia (ECF volume deficit) is caused by:
a. Excess fluid intake
b. Abnormal loss or insufficient intake of body fluids or fluid shifts
c. Fluid retention in the interstitial space
d. Increased aldosterone secretion
✔️ Correct Answer: B
Rationale:
Hypovolemia occurs when fluid loss exceeds intake or when fluid shifts out of the
intravascular space, resulting in decreased circulating volume and impaired tissue
perfusion. Causes include hemorrhage, vomiting, diarrhea, excessive sweating, burns,
and third-spacing of fluids.
Hypervolemia (ECF volume excess) is caused by:
a. Fluid loss and dehydration
b. Excess fluid intake, fluid retention, or fluid shifts into intravascular space
c. Decreased sodium intake
d. Increased urine output
✔️ Correct Answer: B
Rationale:
Hypervolemia results from excess fluid administration or impaired fluid elimination,
2026 ACTUAL EXAM QUESTIONS AND
ANSWERS WITH RATIONALES LATEST
VERSION (2026/2027)
2026/2027 Frequently Most Tested Questions and 100%
Accurate From Past papers | Graded A+ , Reviewed and
Updated | 100% Guarantee Pass | Latest Exam and Newest
Version!!!
Question:
What age group has the highest percentage of water content?
a. Older adults
b. Adolescents
c. Preterm infants / Neonates
d. Young adults
✔️ Correct Answer: C
Rationale:
Preterm infants and neonates have the highest total body water content due to
immature body systems and a higher proportion of extracellular fluid. Total body water
decreases with age as body fat increases and lean mass proportionally decreases.
Preterm infants may have up to 80% body water, while older adults may have as little as
45-50%.
ICF makes up what percent of total body weight?
a. 20%
b. 30%
,c. 40%
d. 60%
✔️ Correct Answer: C
Rationale:
Intracellular fluid (ICF) accounts for approximately 40% of total body weight and
represents the fluid contained within cells, making it the largest fluid compartment in the
body. Extracellular fluid (ECF) makes up about 20% of total body weight, with 15%
interstitial and 5% intravascular (plasma).
What are the two main compartments containing ECF?
a. Intracellular and transcellular
b. Interstitial fluid and intravascular (plasma) fluid
c. Plasma and lymphatic fluid
d. Cerebrospinal and synovial fluid
✔️ Correct Answer: B
Rationale:
Extracellular fluid (ECF) is divided into interstitial fluid (fluid between cells) and
intravascular fluid (plasma within blood vessels). These compartments maintain
circulation and tissue perfusion. Transcellular fluid (Option C) is a specialized subset of
ECF.
Transcellular fluid includes:
a. Blood plasma and lymph
b. Cerebrospinal fluid, GI fluids, synovial, pleural, peritoneal, intraocular, and pericardial
fluids
c. Intracellular fluid and interstitial fluid
d. Plasma and interstitial fluid
✔️ Correct Answer: B
Rationale:
Transcellular fluid is a specialized subset of extracellular fluid found in body cavities and
,lined spaces, serving lubrication, protection, and transport functions. Examples include
cerebrospinal fluid (CSF), gastrointestinal fluids, synovial fluid, pleural fluid, peritoneal
fluid, intraocular fluid, and pericardial fluid.
1 L of water = _____ lb.
a. 1.0 lb
b. 1.5 lb
c. 2.2 lb
d. 3.0 lb
✔️ Correct Answer: C
Rationale:
One liter of water is equivalent to one kilogram, which equals approximately 2.2 pounds.
This conversion is commonly used in fluid balance and weight assessment. Weight
changes of 1 kg (2.2 lb) typically represent fluid shifts.
The concentrations of electrolytes in body fluids is expressed in _______.
a. Milligrams per deciliter (mg/dL)
b. Milliequivalents (mEq) per liter
c. Millimoles per liter (mmol/L)
d. Grams per liter (g/L)
✔️ Correct Answer: B
Rationale:
Electrolyte concentration is measured in milliequivalents per liter (mEq/L), which reflects
both the chemical activity and charge of ions in body fluids. This measurement accounts
for the valence (charge) of the electrolyte, making it more clinically useful than mg/dL for
assessing electrolyte imbalances.
What are the main ions found in the ECF and ICF?
, a. ECF: Potassium (K+); ICF: Sodium (Na+)
b. ECF: Sodium (Na+); ICF: Potassium (K+)
c. ECF: Chloride (Cl-); ICF: Bicarbonate (HCO3-)
d. ECF: Calcium (Ca2+); ICF: Magnesium (Mg2+)
✔️ Correct Answer: B
Rationale:
Sodium is the primary extracellular cation, while potassium is the primary intracellular
cation. This distribution is maintained by the sodium-potassium pump (Na+/K+ ATPase)
and is essential for maintaining fluid balance, membrane potential, and cellular function.
Hypovolemia (ECF volume deficit) is caused by:
a. Excess fluid intake
b. Abnormal loss or insufficient intake of body fluids or fluid shifts
c. Fluid retention in the interstitial space
d. Increased aldosterone secretion
✔️ Correct Answer: B
Rationale:
Hypovolemia occurs when fluid loss exceeds intake or when fluid shifts out of the
intravascular space, resulting in decreased circulating volume and impaired tissue
perfusion. Causes include hemorrhage, vomiting, diarrhea, excessive sweating, burns,
and third-spacing of fluids.
Hypervolemia (ECF volume excess) is caused by:
a. Fluid loss and dehydration
b. Excess fluid intake, fluid retention, or fluid shifts into intravascular space
c. Decreased sodium intake
d. Increased urine output
✔️ Correct Answer: B
Rationale:
Hypervolemia results from excess fluid administration or impaired fluid elimination,
