NU 110 EXAM 4 (GALEN) NEWEST 2026 ACTUAL
EXAM| NU110 INTEGRATED HUMAN SCIENCES EXAM
4 REVIEW WITH COMPLETE REAL EXAM QUESTIONS
AND CORRECT VERIFIED ANSWERS/ ALREADY
GRADED A+ (MOST RECENT!!)
Q1: Which of the following is the primary function of the
cardiovascular system?
A) Gas exchange at the alveolar level
B) Transport of oxygen, nutrients, hormones, and waste products
C) Filtration of blood to form urine
D) Regulation of body temperature independently
Answer: B
Rationale: The cardiovascular system (heart and blood vessels)
transports oxygen, nutrients, hormones, and metabolic wastes.
Gas exchange occurs in the lungs; filtration occurs in the kidneys.
Q2: The sinoatrial (SA) node is known as the natural
pacemaker because it:
A) Conducts impulses to the ventricles
1
,B) Initiates electrical impulses at a rapid rate (60–100 bpm) and
sets the heart rhythm
C) Delays impulses to allow atrial contraction
D) Directly contracts the ventricles
Answer: B
Rationale: The SA node spontaneously depolarizes fastest (60–
100 bpm), setting the heart rate. The AV node delays impulses;
bundle branches/Purkinje fibers conduct to ventricles.
Q3: Which of the following correctly describes the flow of
blood through the heart?
A) Right atrium → right ventricle → lungs → left atrium → left
ventricle → body
B) Left atrium → left ventricle → lungs → right atrium → right
ventricle → body
C) Right ventricle → right atrium → lungs → left ventricle → left
atrium → body
D) Right atrium → lungs → right ventricle → left atrium → body
→ left ventricle
2
,Answer: A
Rationale: Deoxygenated blood enters right atrium → right
ventricle → pulmonary artery → lungs (oxygenates) →
pulmonary veins → left atrium → left ventricle → aorta →
body.
Q4: A client is diagnosed with left-sided heart failure. Which
of the following findings would the nurse expect?
A) Jugular vein distention (JVD)
B) Peripheral edema
C) Crackles (rales) in the lungs
D) Hepatomegaly
Answer: C
Rationale: Left-sided heart failure causes pulmonary congestion
(crackles, dyspnea, cough). Right-sided failure causes systemic
congestion (JVD, peripheral edema, hepatomegaly).
Q5: The normal range for adult blood pressure is:
A) 90/60 to 120/80 mmHg
B) 140/90 to 160/100 mmHg
3
, C) 80/50 to 100/70 mmHg
D) 130/80 to 150/90 mmHg
Answer: A
Rationale: Normal adult BP is <120/80 mmHg. Hypertension is
≥130/80 (newer guidelines) or ≥140/90 (older).
Prehypertension/elevated BP is 120–129/<80.
Q6: Which of the following is a function of the liver?
A) Production of insulin
B) Synthesis of clotting factors and albumin
C) Filtration of urine
D) Oxygenation of blood
Answer: B
Rationale: The liver synthesizes clotting factors (II, VII, IX, X),
albumin, and bile; metabolizes bilirubin and drugs; and stores
glycogen.
Q7: The primary function of the kidneys is to:
A) Regulate blood glucose
B) Filter blood and produce urine, regulating electrolytes,
4
EXAM| NU110 INTEGRATED HUMAN SCIENCES EXAM
4 REVIEW WITH COMPLETE REAL EXAM QUESTIONS
AND CORRECT VERIFIED ANSWERS/ ALREADY
GRADED A+ (MOST RECENT!!)
Q1: Which of the following is the primary function of the
cardiovascular system?
A) Gas exchange at the alveolar level
B) Transport of oxygen, nutrients, hormones, and waste products
C) Filtration of blood to form urine
D) Regulation of body temperature independently
Answer: B
Rationale: The cardiovascular system (heart and blood vessels)
transports oxygen, nutrients, hormones, and metabolic wastes.
Gas exchange occurs in the lungs; filtration occurs in the kidneys.
Q2: The sinoatrial (SA) node is known as the natural
pacemaker because it:
A) Conducts impulses to the ventricles
1
,B) Initiates electrical impulses at a rapid rate (60–100 bpm) and
sets the heart rhythm
C) Delays impulses to allow atrial contraction
D) Directly contracts the ventricles
Answer: B
Rationale: The SA node spontaneously depolarizes fastest (60–
100 bpm), setting the heart rate. The AV node delays impulses;
bundle branches/Purkinje fibers conduct to ventricles.
Q3: Which of the following correctly describes the flow of
blood through the heart?
A) Right atrium → right ventricle → lungs → left atrium → left
ventricle → body
B) Left atrium → left ventricle → lungs → right atrium → right
ventricle → body
C) Right ventricle → right atrium → lungs → left ventricle → left
atrium → body
D) Right atrium → lungs → right ventricle → left atrium → body
→ left ventricle
2
,Answer: A
Rationale: Deoxygenated blood enters right atrium → right
ventricle → pulmonary artery → lungs (oxygenates) →
pulmonary veins → left atrium → left ventricle → aorta →
body.
Q4: A client is diagnosed with left-sided heart failure. Which
of the following findings would the nurse expect?
A) Jugular vein distention (JVD)
B) Peripheral edema
C) Crackles (rales) in the lungs
D) Hepatomegaly
Answer: C
Rationale: Left-sided heart failure causes pulmonary congestion
(crackles, dyspnea, cough). Right-sided failure causes systemic
congestion (JVD, peripheral edema, hepatomegaly).
Q5: The normal range for adult blood pressure is:
A) 90/60 to 120/80 mmHg
B) 140/90 to 160/100 mmHg
3
, C) 80/50 to 100/70 mmHg
D) 130/80 to 150/90 mmHg
Answer: A
Rationale: Normal adult BP is <120/80 mmHg. Hypertension is
≥130/80 (newer guidelines) or ≥140/90 (older).
Prehypertension/elevated BP is 120–129/<80.
Q6: Which of the following is a function of the liver?
A) Production of insulin
B) Synthesis of clotting factors and albumin
C) Filtration of urine
D) Oxygenation of blood
Answer: B
Rationale: The liver synthesizes clotting factors (II, VII, IX, X),
albumin, and bile; metabolizes bilirubin and drugs; and stores
glycogen.
Q7: The primary function of the kidneys is to:
A) Regulate blood glucose
B) Filter blood and produce urine, regulating electrolytes,
4
