PALS 2024 Shock Exam Questions With Verified Answers.
11 views 0 purchase
Course
PALS
Institution
PALS
PALS 2024 Shock Exam Questions With
Verified Answers.
Shock - answerShock is defined as a physiologic state characterized by inadequate tissue
perfusion to meet metabolic demand and tissue oxygenation.
metabolic demand - answerwhat cardiac output is normally equal to
How can shock be character...
PALS 2024 Shock Exam Questions With
Verified Answers.
Shock - answer✔Shock is defined as a physiologic state characterized by inadequate tissue
perfusion to meet metabolic demand and tissue oxygenation.
metabolic demand - answer✔what cardiac output is normally equal to
How can shock be characterized? - 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? - answer✔Shock thats caused by sepsis or
anaphylaxis cardiac out put can be high
All types of shock can do what to organs? - 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)
What will occur if adequate o2 delivery to the tissues is not maintained? - answer✔Organ
dysfunction
What are the major functions of the cardiopulmonary system? - answer✔Delivers oxygen to
body tissues
Removes metabolic by products of cellular metabolism
Tissue hypoxia - 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? - answer✔Determines
adequate blood flow to the tissues
Cardiac output - answer✔The volume of blood pumped by the heart per minute is the product of
stroke volume and heart rate
Stroke volume - answer✔The volume of blood pumped by the ventricles with each contraction
Cardia output=Stroke volume X Heart Rate - 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? - 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? - 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.
As shock develops, compensatory mechanisms attempt to? - answer✔Attempt to maintain O2
delivery to vital organs
vasoconstriction - answer✔the constriction of blood vessels, which increases blood pressure.
Name the compensatory mechanisms - answer✔Tachycardia
Increased strength of cardiac contraction (Contractility)
Increase in venous smooth muscle tone
The body's first action to maintain cardiac output is to? - answer✔Is to increase heart rate, or
tachycardia, which can increase cardiac output to a limited degree
When O2 delivery to the tissues is compromised what happens? - answer✔Blood flow is
redirected or shunted from nonvital organs and tissues ( like skin, skeletal muscles, gut, kidneys)
to vital organs like brain, heart
What is another mechanism to maintain stroke volume and cardiac output? - answer✔Is
increased strength of cardiac contractions, or contractility, with more complete emptying of the
ventricles
What else can support stroke volume? - answer✔Can be supported by increased venous smooth
muscle tone, improving venous return to the heart and preload
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Brainbarter. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.49. You're not tied to anything after your purchase.
