PALS Shock Exam Questions And Answers
Latest 2025
Shock -
correct answer ✅Shock is defined as a physiologic state
characterized by inadequate tissue perfusion to meet metabolic
demand and tissue oxygenation.
metabolic demand -
correct answer ✅what cardiac output is normally equal to
How can shock be characterized? -
correct answer ✅By inadequate peripheral and end organ
perfusion. Also it can be characterized by low cardiac output and
decreased level of consciousness.
What types of shock can cause a high cardiac output? -
correct answer ✅Shock thats caused by sepsis or anaphylaxis
cardiac out put can be high
All types of shock can do what to organs? -
correct answer ✅Can result in impared function of vital organs
such as the brain (Decreased level of consciousness) and kidneys
( Low urine output and ineffective filtering)
,PALS Shock Exam Questions And Answers
Latest 2025
What will occur if adequate o2 delivery to the tissues is not
maintained? -
correct answer ✅Organ dysfunction
What are the major functions of the cardiopulmonary system? -
correct answer ✅Delivers oxygen to body tissues
Removes metabolic by products of cellular metabolism
Tissue hypoxia -
correct answer ✅This is present when a region of the body or an
organ is deprived of adequate O2 supply.
What does cardiac output determine and vascular resistance
determine? -
correct answer ✅Determines adequate blood flow to the tissues
Cardiac output -
correct answer ✅The volume of blood pumped by the heart per
minute is the product of stroke volume and heart rate
,PALS Shock Exam Questions And Answers
Latest 2025
Cardia output=Stroke volume X Heart Rate
Stroke volume -
correct answer ✅The volume of blood pumped by the ventricles
with each contraction
Cardia output=Stroke volume X Heart Rate -
correct answer ✅According to this formula if the heart rate
decreases, stroke volume must increase commensurately to
maintain the cardiac output.
How can cardiac output increase? -
correct answer ✅By an increase in heart rate, in stroke volume or
both
What are the limits of increased cardia output produced by
increasing heart rate? -
correct answer ✅If the rate is too fast, as can happen with
tachyarrhythmias, stroke volume can fall bc there is inadequate
time to fill the heart.
, PALS Shock Exam Questions And Answers
Latest 2025
As shock develops, compensatory mechanisms attempt to? -
correct answer ✅Attempt to maintain O2 delivery to vital organs
vasoconstriction -
correct answer ✅the constriction of blood vessels, which increases
blood pressure.
Name the compensatory mechanisms -
correct answer ✅Tachycardia
Increased systemic vascular resistance (SVR) (vasoconstriction)
Increased strength of cardiac contraction (Contractility)
Increase in venous smooth muscle tone
The body's first action to maintain cardiac output is to? -
correct answer ✅Is to increase heart rate, or tachycardia, which
can increase cardiac output to a limited degree
Latest 2025
Shock -
correct answer ✅Shock is defined as a physiologic state
characterized by inadequate tissue perfusion to meet metabolic
demand and tissue oxygenation.
metabolic demand -
correct answer ✅what cardiac output is normally equal to
How can shock be characterized? -
correct answer ✅By inadequate peripheral and end organ
perfusion. Also it can be characterized by low cardiac output and
decreased level of consciousness.
What types of shock can cause a high cardiac output? -
correct answer ✅Shock thats caused by sepsis or anaphylaxis
cardiac out put can be high
All types of shock can do what to organs? -
correct answer ✅Can result in impared function of vital organs
such as the brain (Decreased level of consciousness) and kidneys
( Low urine output and ineffective filtering)
,PALS Shock Exam Questions And Answers
Latest 2025
What will occur if adequate o2 delivery to the tissues is not
maintained? -
correct answer ✅Organ dysfunction
What are the major functions of the cardiopulmonary system? -
correct answer ✅Delivers oxygen to body tissues
Removes metabolic by products of cellular metabolism
Tissue hypoxia -
correct answer ✅This is present when a region of the body or an
organ is deprived of adequate O2 supply.
What does cardiac output determine and vascular resistance
determine? -
correct answer ✅Determines adequate blood flow to the tissues
Cardiac output -
correct answer ✅The volume of blood pumped by the heart per
minute is the product of stroke volume and heart rate
,PALS Shock Exam Questions And Answers
Latest 2025
Cardia output=Stroke volume X Heart Rate
Stroke volume -
correct answer ✅The volume of blood pumped by the ventricles
with each contraction
Cardia output=Stroke volume X Heart Rate -
correct answer ✅According to this formula if the heart rate
decreases, stroke volume must increase commensurately to
maintain the cardiac output.
How can cardiac output increase? -
correct answer ✅By an increase in heart rate, in stroke volume or
both
What are the limits of increased cardia output produced by
increasing heart rate? -
correct answer ✅If the rate is too fast, as can happen with
tachyarrhythmias, stroke volume can fall bc there is inadequate
time to fill the heart.
, PALS Shock Exam Questions And Answers
Latest 2025
As shock develops, compensatory mechanisms attempt to? -
correct answer ✅Attempt to maintain O2 delivery to vital organs
vasoconstriction -
correct answer ✅the constriction of blood vessels, which increases
blood pressure.
Name the compensatory mechanisms -
correct answer ✅Tachycardia
Increased systemic vascular resistance (SVR) (vasoconstriction)
Increased strength of cardiac contraction (Contractility)
Increase in venous smooth muscle tone
The body's first action to maintain cardiac output is to? -
correct answer ✅Is to increase heart rate, or tachycardia, which
can increase cardiac output to a limited degree
