Exam (elaborations)
NUR 213 Shock: Questions And Solutions (Correct)
NUR 213 Shock: Questions And Solutions (Correct)
[Show more]
Content preview
NUR 213 Shock: Questions And Solutions (Correct)What is shock? Right Ans - Inadequate perfusion to meet the oxygenation
and metabolic demands of the body.
what is hemodynamics? Right Ans - the study of blood moving through the
circulatory system.
Non invasive hemodynamic monitoring is? Right Ans - Blood Pressure:
120/80.
Capillary refill: within 2 seconds.
Pulse rate and Quality: 60-100.
Urine output: 30 ml/hr
Mentation-A&O neuro status.
Skin temperature/ Color: warm, normal color for ethnicity.
What happens to capp refill when our blood flow is decreased? Right Ans -
It will be more than 2 seconds.
Calculation for MAP? Right Ans - 2 x diastolic, + systolic, then divide by 3.
what MAP needed to profuse coronary arteries, brain, kidneys. Right Ans -
60.
What is the normal range of MAP? Right Ans - 70-110
What does it mean if the MAP is higher than 110? Right Ans - They are
hypertensive.
define cardiac output [CO]. Right Ans - the amount of blood ejected from
the ventricle in 1 minute
Cardica output calculation is?
What is the normal range? Right Ans - HR x SV
-Normal range: 4-8 L/min
,Define cardiac index [CI]. Right Ans - cardiac output adjusted for the
patient's body surface area.
-More specific to individuals
-need CO to get CI.
Define stroke Volume.
What is the normal range? Right Ans - Stroke volume is the amount of
blood ejected from the ventricle with each heartbeat.
60-100 mL/beat.
What is the calculation for CI?
What is the normal range? Right Ans - -CO/ BSA [body surface area}.
-Normal range: 2.5-4 L/min/m2
image of prelaod and afterload. Right Ans -
Define preload [volume]. Right Ans - the volume of blood in the ventricle at
the end of diastole or right before systole-how much is in my ventricle before
it ejects
within preload, there are 2 ways to measure pressure, what are they and what
do they measure? Right Ans - CVP [central venous pressure] aka right atrial
pressure [RAP]-measure right side-venous return comes to the right side of
the heart.
PAWP [pulmonary artery wedge pressure] AKA pulmonary capillary wedge
pressure [PCWP], or left ventricle end diastolic pressure [LVEDP] -measure
left side
With these, we use a pulmonary artery catheter, aka swan ganz catheter.
What 3 parts make up stroke volume? Right Ans - Preload [volume].
Afterload [resistence].
Contractility [squeeze of the heart].
, What is central venous pressure monitoring?
What is normal range of preload? Right Ans - Central line normally through
internal jugular or femoral vein, sits right outside the right atrium and
measures preload.
2-6 mmHg
What abnormalities cause an increase in preload? Right Ans -
Hypervolemia.
regurgitation of cardiac valves.
heart failure.
How can we manipulate preload [volume]? Right Ans - Fluids will increase
preload aka increases volume.
Diuretics will decrease preload aka decreasing volume.
what is afterload [resistence]? Right Ans - Afterload is the pressure or
resistance the ventricle must overcome to eject blood [systole].
Afterload of the LEFT ventricle is measured as?
What is the normal range of this? Right Ans - Systemic vascular resistance
(SVR) resistance to blood flow in vasculature.
SVR normal range: 800-1200 dynes/sec/cm5
Afterload of the right ventricle is measures by what? Right Ans -
Pulmonary vascular resistance (PVR) resistance against which right ventricle
has to pump to eject blood
What abnormalities causes an increase in after load [resistance]? Right Ans
- Hypertension.
Vasoconstriction.
arteries and valvular stenosis.
What can we do to manipulate afterload [resistance]? Right Ans - Decrease
blood pressure to decrease afterload.
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 Studycafe. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for CA$18.08. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67866 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now