ATLS 10th Edition Shock Practice Test 2026 | Verified
Answers | Exam Prep
1. Describe how preload affects cardiac output.
Preload decreases cardiac output by increasing afterload.
Preload has no effect on cardiac output as it only relates to heart rate.
Preload influences cardiac output by determining the volume of
blood available for the heart to pump, affecting the force of
contraction.
Preload is unrelated to the heart's pumping efficiency.
2. What is the primary cause of neurogenic shock?
Severe blood loss
Nerve paralysis due to spinal cord injuries
Heart failure
Infection
3. Describe the significance of muffled heart sounds in the context of cardiac
tamponade.
Muffled heart sounds suggest a healthy heart function.
Muffled heart sounds indicate fluid accumulation around the heart,
which impairs its ability to pump effectively.
Muffled heart sounds are a sign of increased cardiac output.
Muffled heart sounds indicate a blockage in the coronary arteries.
4. Describe how atherosclerosis impacts the cardiac function of elderly patients
experiencing shock.
, Atherosclerosis has no significant impact on elderly patients in shock.
Atherosclerosis leads to reduced cardiac compliance and increased
sensitivity to hypovolaemia.
Atherosclerosis increases sympathetic activity and cardiac efficiency.
Atherosclerosis enhances cardiac output and improves tissue
perfusion.
5. Describe how shock affects the body's organs and tissues.
Shock increases blood flow to all organs, enhancing their function.
Shock has no significant impact on organ function.
Shock only affects the heart and lungs.
Shock leads to inadequate organ perfusion and tissue oxygenation,
compromising their function.
6. How is cardiac output calculated?
By dividing the stroke volume by the heart rate.
By subtracting the amount of blood being pumped out from the
number of heartbeats per minute.
By multiplying the heart rate by the stroke volume.
By adding together the heartbeats per minute and the volume of
blood pumped out.
7. In a clinical scenario, if a patient presents with a low pulse pressure and a
significant base deficit, how would you classify their haemorrhagic shock?
As a mild class of haemorrhagic shock
As neurogenic shock
, As a severe class of haemorrhagic shock
As cardiogenic shock
8. What is the primary consequence of shock in the circulatory system?
Increased blood pressure.
Inadequate organ perfusion and tissue oxygenation.
Normal tissue oxygenation.
Excessive blood flow to the organs.
9. Describe how cutaneous vasoconstriction serves as an early sign of
hypovolaemic shock.
Cutaneous vasoconstriction indicates an increase in blood volume.
Cutaneous vasoconstriction is unrelated to shock conditions.
Cutaneous vasoconstriction is a response to increased oxygen levels
in the blood.
Cutaneous vasoconstriction occurs as the body attempts to redirect
blood flow to vital organs during hypovolaemic shock.
10. In a clinical scenario, if a patient presents with tachycardia and cutaneous
vasoconstriction after a significant blood loss, what condition should be
suspected?
Neurogenic shock
Cardiogenic shock
Hypovolaemic shock
Septic shock
Answers | Exam Prep
1. Describe how preload affects cardiac output.
Preload decreases cardiac output by increasing afterload.
Preload has no effect on cardiac output as it only relates to heart rate.
Preload influences cardiac output by determining the volume of
blood available for the heart to pump, affecting the force of
contraction.
Preload is unrelated to the heart's pumping efficiency.
2. What is the primary cause of neurogenic shock?
Severe blood loss
Nerve paralysis due to spinal cord injuries
Heart failure
Infection
3. Describe the significance of muffled heart sounds in the context of cardiac
tamponade.
Muffled heart sounds suggest a healthy heart function.
Muffled heart sounds indicate fluid accumulation around the heart,
which impairs its ability to pump effectively.
Muffled heart sounds are a sign of increased cardiac output.
Muffled heart sounds indicate a blockage in the coronary arteries.
4. Describe how atherosclerosis impacts the cardiac function of elderly patients
experiencing shock.
, Atherosclerosis has no significant impact on elderly patients in shock.
Atherosclerosis leads to reduced cardiac compliance and increased
sensitivity to hypovolaemia.
Atherosclerosis increases sympathetic activity and cardiac efficiency.
Atherosclerosis enhances cardiac output and improves tissue
perfusion.
5. Describe how shock affects the body's organs and tissues.
Shock increases blood flow to all organs, enhancing their function.
Shock has no significant impact on organ function.
Shock only affects the heart and lungs.
Shock leads to inadequate organ perfusion and tissue oxygenation,
compromising their function.
6. How is cardiac output calculated?
By dividing the stroke volume by the heart rate.
By subtracting the amount of blood being pumped out from the
number of heartbeats per minute.
By multiplying the heart rate by the stroke volume.
By adding together the heartbeats per minute and the volume of
blood pumped out.
7. In a clinical scenario, if a patient presents with a low pulse pressure and a
significant base deficit, how would you classify their haemorrhagic shock?
As a mild class of haemorrhagic shock
As neurogenic shock
, As a severe class of haemorrhagic shock
As cardiogenic shock
8. What is the primary consequence of shock in the circulatory system?
Increased blood pressure.
Inadequate organ perfusion and tissue oxygenation.
Normal tissue oxygenation.
Excessive blood flow to the organs.
9. Describe how cutaneous vasoconstriction serves as an early sign of
hypovolaemic shock.
Cutaneous vasoconstriction indicates an increase in blood volume.
Cutaneous vasoconstriction is unrelated to shock conditions.
Cutaneous vasoconstriction is a response to increased oxygen levels
in the blood.
Cutaneous vasoconstriction occurs as the body attempts to redirect
blood flow to vital organs during hypovolaemic shock.
10. In a clinical scenario, if a patient presents with tachycardia and cutaneous
vasoconstriction after a significant blood loss, what condition should be
suspected?
Neurogenic shock
Cardiogenic shock
Hypovolaemic shock
Septic shock
