NUR 256 Exam 2 | Fluid & Electrolytes, Acid-Base Balance,
Respiratory Disorders, COPD, Asthma, Pneumonia,
Pulmonary Embolism, Chest Trauma | Comprehensive Study
Guide
Latest 2026/2027 Update | 100% Correct Verified Answers | Grade A Guaranteed – Nursing Program
SUBJECT COURSE FOCUS
Medical-Surgical Nursing / Fluids NUR 256 Exam 2 Fluid & Electrolyte Balance, Acid-
& Electrolytes / Respiratory Base Disorders, Upper/Lower
Respiratory Disorders, COPD,
Asthma, Pneumonia, Pulmonary
Embolism, Chest Trauma
Question 1
What percentage of a typical adult's body is fluid?
CORRECT ANSWER
Approximately 60%
RATIONALE
• Total body water varies by age, gender, and body composition.
• Infants have higher percentage (70-80%); older adults have lower percentage (50-55%).
• Adipose tissue contains less water than lean tissue.
, Question 2
What are the two main fluid compartments in the body?
CORRECT ANSWER
Intracellular (2/3) and Extracellular (1/3)
RATIONALE
• Intracellular fluid (ICF) is inside cells and contains 2/3 of body water.
• Extracellular fluid (ECF) includes interstitial fluid, plasma, and transcellular fluid.
• ECF contains 1/3 of body water.
Question 3
What is third spacing?
CORRECT ANSWER
Fluid accumulation within membrane-bound spaces in the body, such as the peritoneal cavity and
pleural space.
RATIONALE
• Third spacing occurs when fluid shifts from intravascular space into non-functional spaces.
• Examples include ascites, pleural effusion, and pericardial effusion.
• This fluid is not easily available for physiological use.
Respiratory Disorders, COPD, Asthma, Pneumonia,
Pulmonary Embolism, Chest Trauma | Comprehensive Study
Guide
Latest 2026/2027 Update | 100% Correct Verified Answers | Grade A Guaranteed – Nursing Program
SUBJECT COURSE FOCUS
Medical-Surgical Nursing / Fluids NUR 256 Exam 2 Fluid & Electrolyte Balance, Acid-
& Electrolytes / Respiratory Base Disorders, Upper/Lower
Respiratory Disorders, COPD,
Asthma, Pneumonia, Pulmonary
Embolism, Chest Trauma
Question 1
What percentage of a typical adult's body is fluid?
CORRECT ANSWER
Approximately 60%
RATIONALE
• Total body water varies by age, gender, and body composition.
• Infants have higher percentage (70-80%); older adults have lower percentage (50-55%).
• Adipose tissue contains less water than lean tissue.
, Question 2
What are the two main fluid compartments in the body?
CORRECT ANSWER
Intracellular (2/3) and Extracellular (1/3)
RATIONALE
• Intracellular fluid (ICF) is inside cells and contains 2/3 of body water.
• Extracellular fluid (ECF) includes interstitial fluid, plasma, and transcellular fluid.
• ECF contains 1/3 of body water.
Question 3
What is third spacing?
CORRECT ANSWER
Fluid accumulation within membrane-bound spaces in the body, such as the peritoneal cavity and
pleural space.
RATIONALE
• Third spacing occurs when fluid shifts from intravascular space into non-functional spaces.
• Examples include ascites, pleural effusion, and pericardial effusion.
• This fluid is not easily available for physiological use.
