Nursing Exam 4 Study Guide 2026: Cardiac,
Immune & Burn Care Q&A + NCLEX
Practice
Description:
Struggling to ace your Nursing Exam 4 on cardiovascular, immune, and integumentary
systems? This comprehensive study guide is designed for nursing students searching for NUR
1025 exam prep, NCLEX-style questions, and clinical review materials for 2026 curriculum
standards.
Inside, you’ll find targeted practice questions covering:
Cardiac pathophysiology (CHF, VSD, Tetralogy of Fallot, HTN stages)
Immune response & hypersensitivity (RA, TB, anaphylaxis, vaccines)
Burn care & TBSA calculation (Rule of Nines, fluid resuscitation)
Pharmacology highlights (Digoxin, Methotrexate, Isoniazid, Diuretics)
Each question includes detailed explanations aligned with current nursing guidelines, helping
you master critical thinking and clinical application. Perfect for last-minute review, concept
reinforcement, or NCLEX readiness.
Ready to pass with confidence? Download your free Nursing Exam 4 Study Guide now and take
your prep to the next level!
, Nursing Exam 4 Study Guide: Cardiac, Immune & Burn Care
Questions & Answers
1. How many compartments comprise the structure of the human heart?
a) 2
b) 3
c) 4
d) 5
Answer: c) 4
Explanation: The human heart contains four chambers: two upper atria (right and left) and two
lower ventricles (right and left). This structure is essential for the dual-circuit circulatory system,
separating oxygenated and deoxygenated blood.
2. Which cardiac chamber is the primary recipient of systemic, deoxygenated blood?
a) Left Atrium
b) Right Ventricle
c) Left Ventricle
d) Right Atrium
Answer: d) Right Atrium
Explanation: The right atrium receives deoxygenated blood returning from the systemic
circulation via the superior and inferior vena cavae. This is the first step in the pulmonary circuit.
3. Following entry into the right atrium, deoxygenated blood subsequently flows into which
structure?
a) Pulmonary Veins
b) Right Ventricle
c) Aorta
d) Left Atrium
Answer: b) Right Ventricle
, Explanation: Blood moves from the right atrium through the tricuspid valve into the right
ventricle. The ventricle then pumps this blood into the pulmonary artery for oxygenation in the
lungs.
4. The process by which blood delivers oxygen and nutrients to body tissues via capillary beds is
termed:
a) Diffusion
b) Perfusion
c) Osmosis
d) Ventilation
Answer: b) Perfusion
Explanation: Perfusion is the flow of blood through arteries and capillaries, delivering essential
oxygen and nutrients to cells and removing waste products. Adequate perfusion depends on
sufficient cardiac output and vascular integrity.
5. In neonatal transition, which physiological change facilitates the closure of the ductus
arteriosus?
a) Increase in pulmonary vascular resistance
b) Decrease in systemic arterial pressure
c) Increase in left atrial pressure
d) Rise in pulmonary artery pressure
Answer: c) Increase in left atrial pressure
Explanation: With the first breath, lung expansion and increased pulmonary blood flow raise
pressure in the left atrium. This pressure change, coupled with a drop in prostaglandins,
promotes functional closure of the ductus arteriosus, typically within 24-72 hours.
6. A persistent patent ductus arteriosus (PDA) beyond the neonatal period results in:
a) Decreased pulmonary blood flow
b) Left-to-right shunting
Immune & Burn Care Q&A + NCLEX
Practice
Description:
Struggling to ace your Nursing Exam 4 on cardiovascular, immune, and integumentary
systems? This comprehensive study guide is designed for nursing students searching for NUR
1025 exam prep, NCLEX-style questions, and clinical review materials for 2026 curriculum
standards.
Inside, you’ll find targeted practice questions covering:
Cardiac pathophysiology (CHF, VSD, Tetralogy of Fallot, HTN stages)
Immune response & hypersensitivity (RA, TB, anaphylaxis, vaccines)
Burn care & TBSA calculation (Rule of Nines, fluid resuscitation)
Pharmacology highlights (Digoxin, Methotrexate, Isoniazid, Diuretics)
Each question includes detailed explanations aligned with current nursing guidelines, helping
you master critical thinking and clinical application. Perfect for last-minute review, concept
reinforcement, or NCLEX readiness.
Ready to pass with confidence? Download your free Nursing Exam 4 Study Guide now and take
your prep to the next level!
, Nursing Exam 4 Study Guide: Cardiac, Immune & Burn Care
Questions & Answers
1. How many compartments comprise the structure of the human heart?
a) 2
b) 3
c) 4
d) 5
Answer: c) 4
Explanation: The human heart contains four chambers: two upper atria (right and left) and two
lower ventricles (right and left). This structure is essential for the dual-circuit circulatory system,
separating oxygenated and deoxygenated blood.
2. Which cardiac chamber is the primary recipient of systemic, deoxygenated blood?
a) Left Atrium
b) Right Ventricle
c) Left Ventricle
d) Right Atrium
Answer: d) Right Atrium
Explanation: The right atrium receives deoxygenated blood returning from the systemic
circulation via the superior and inferior vena cavae. This is the first step in the pulmonary circuit.
3. Following entry into the right atrium, deoxygenated blood subsequently flows into which
structure?
a) Pulmonary Veins
b) Right Ventricle
c) Aorta
d) Left Atrium
Answer: b) Right Ventricle
, Explanation: Blood moves from the right atrium through the tricuspid valve into the right
ventricle. The ventricle then pumps this blood into the pulmonary artery for oxygenation in the
lungs.
4. The process by which blood delivers oxygen and nutrients to body tissues via capillary beds is
termed:
a) Diffusion
b) Perfusion
c) Osmosis
d) Ventilation
Answer: b) Perfusion
Explanation: Perfusion is the flow of blood through arteries and capillaries, delivering essential
oxygen and nutrients to cells and removing waste products. Adequate perfusion depends on
sufficient cardiac output and vascular integrity.
5. In neonatal transition, which physiological change facilitates the closure of the ductus
arteriosus?
a) Increase in pulmonary vascular resistance
b) Decrease in systemic arterial pressure
c) Increase in left atrial pressure
d) Rise in pulmonary artery pressure
Answer: c) Increase in left atrial pressure
Explanation: With the first breath, lung expansion and increased pulmonary blood flow raise
pressure in the left atrium. This pressure change, coupled with a drop in prostaglandins,
promotes functional closure of the ductus arteriosus, typically within 24-72 hours.
6. A persistent patent ductus arteriosus (PDA) beyond the neonatal period results in:
a) Decreased pulmonary blood flow
b) Left-to-right shunting
