NSC 170 Final Actual Exam
Questions And Answers With
Verified Rationales | 2026/27
Digital Pdf Download
1. Which organ is primarily responsible for filtering blood and
producing urine?
A. Liver
B. Kidney
C. Pancreas
D. Spleen
Answer: B. Kidney
Rationale: The kidneys filter waste products from the blood and regulate fluid
and electrolyte balance through urine production.
2. Which vital sign finding should the nurse report immediately?
A. Temperature 98.6°F
B. Pulse 76/min
C. Respiratory rate 8/min
D. Blood pressure 118/72 mmHg
Answer: C. Respiratory rate 8/min
Rationale: Respiratory depression may indicate serious neurological or
medication-related complications.
3. Which infection control measure is most effective in preventing
transmission of pathogens?
A. Wearing gloves only
B. Hand hygiene
C. Wearing a gown
D. Limiting visitors
,Answer: B. Hand hygiene
Rationale: Proper hand hygiene is the single most effective method of
preventing infection spread.
4. A patient with diabetes reports shakiness and sweating. What should
the nurse suspect?
A. Hyperglycemia
B. Hypoglycemia
C. Hypertension
D. Dehydration
Answer: B. Hypoglycemia
Rationale: Sweating, shakiness, and confusion are common symptoms of low
blood glucose.
5. Which blood vessel carries oxygenated blood away from the heart?
A. Vein
B. Capillary
C. Artery
D. Venule
Answer: C. Artery
Rationale: Arteries transport oxygen-rich blood from the heart to body
tissues.
6. What is the normal adult body temperature in Fahrenheit?
A. 95.6°F
B. 98.6°F
C. 101.2°F
D. 103.5°F
Answer: B. 98.6°F
Rationale: Average normal body temperature is approximately 98.6°F (37°C).
, 7. Which nutrient is the body’s primary source of energy?
A. Vitamins
B. Proteins
C. Carbohydrates
D. Minerals
Answer: C. Carbohydrates
Rationale: Carbohydrates are converted into glucose, the body’s main energy
source.
8. A patient develops sudden chest pain and shortness of breath. What is
the nurse’s priority action?
A. Encourage ambulation
B. Assess airway and oxygenation
C. Offer food and fluids
D. Place patient flat
Answer: B. Assess airway and oxygenation
Rationale: Airway, breathing, and circulation are always priority assessments
in emergencies.
9. Which chamber of the heart pumps oxygenated blood to the body?
A. Right atrium
B. Right ventricle
C. Left atrium
D. Left ventricle
Answer: D. Left ventricle
Rationale: The left ventricle pumps oxygenated blood into systemic
circulation.
10. Which electrolyte is most important for cardiac function?
A. Potassium
B. Calcium
Questions And Answers With
Verified Rationales | 2026/27
Digital Pdf Download
1. Which organ is primarily responsible for filtering blood and
producing urine?
A. Liver
B. Kidney
C. Pancreas
D. Spleen
Answer: B. Kidney
Rationale: The kidneys filter waste products from the blood and regulate fluid
and electrolyte balance through urine production.
2. Which vital sign finding should the nurse report immediately?
A. Temperature 98.6°F
B. Pulse 76/min
C. Respiratory rate 8/min
D. Blood pressure 118/72 mmHg
Answer: C. Respiratory rate 8/min
Rationale: Respiratory depression may indicate serious neurological or
medication-related complications.
3. Which infection control measure is most effective in preventing
transmission of pathogens?
A. Wearing gloves only
B. Hand hygiene
C. Wearing a gown
D. Limiting visitors
,Answer: B. Hand hygiene
Rationale: Proper hand hygiene is the single most effective method of
preventing infection spread.
4. A patient with diabetes reports shakiness and sweating. What should
the nurse suspect?
A. Hyperglycemia
B. Hypoglycemia
C. Hypertension
D. Dehydration
Answer: B. Hypoglycemia
Rationale: Sweating, shakiness, and confusion are common symptoms of low
blood glucose.
5. Which blood vessel carries oxygenated blood away from the heart?
A. Vein
B. Capillary
C. Artery
D. Venule
Answer: C. Artery
Rationale: Arteries transport oxygen-rich blood from the heart to body
tissues.
6. What is the normal adult body temperature in Fahrenheit?
A. 95.6°F
B. 98.6°F
C. 101.2°F
D. 103.5°F
Answer: B. 98.6°F
Rationale: Average normal body temperature is approximately 98.6°F (37°C).
, 7. Which nutrient is the body’s primary source of energy?
A. Vitamins
B. Proteins
C. Carbohydrates
D. Minerals
Answer: C. Carbohydrates
Rationale: Carbohydrates are converted into glucose, the body’s main energy
source.
8. A patient develops sudden chest pain and shortness of breath. What is
the nurse’s priority action?
A. Encourage ambulation
B. Assess airway and oxygenation
C. Offer food and fluids
D. Place patient flat
Answer: B. Assess airway and oxygenation
Rationale: Airway, breathing, and circulation are always priority assessments
in emergencies.
9. Which chamber of the heart pumps oxygenated blood to the body?
A. Right atrium
B. Right ventricle
C. Left atrium
D. Left ventricle
Answer: D. Left ventricle
Rationale: The left ventricle pumps oxygenated blood into systemic
circulation.
10. Which electrolyte is most important for cardiac function?
A. Potassium
B. Calcium
