Exam (elaborations)
Critical Care Midterm Exam – Questions And Answers (Guaranteed Pass!)
- Course
- Institution
Critical Care Midterm Exam – Questions And Answers (Guaranteed Pass!)
[Show more]
1 review
By: suadsaed76 • 3 months ago
Seller
Follow
Studycafe
Reviews received
Content preview
Critical Care Midterm Exam – Questions AndAnswers (Guaranteed Pass!)
Heart rate on an ECG Ans - number of complexes in 6 seconds x 10
evaluating the heart rhythm Ans - regular or irregular; look at R-R
intervals
PR interval Ans - 0.12-0.20; top of P wave to top of R wave - determine if
consistent or not
QRS complex Ans - <0.12 seconds
NSR Ans - seen in majority of patients, 60-100
SB Ans - HR<60
ST Ans - HR > 100
A-fib Ans - most frequent dysrhythmia; irregular R-R; lack of P waves
A-fib Ans -
PVCs Ans - large, bizarre, complexes that come early, followed by a
pause; associated with hypokalemia, drug toxicity, hypoxia, myocardial
ischemia, acidosis, cardiomyopathy
PVCs Ans -
VT Ans - wide complex, tachycardia, associated with structural heart
disease and electrolyte imbalance; poorly tolerated, low CO b/c no time to fill
ventricles
VT Ans -
V-fib Ans -
, V-fib Ans - chaotic, electrical activity ventricles shaking, no pulse, no CO;
ECG wavy line
Symptomatic bradycardia Ans - Will usually not be treated unless the
patient displays symptoms of hypoperfusion (hypotension, dizziness, chest
pain, changes in level of consciousness); decreased CO due to fewer ejections
Sinus tachycardia Ans - treat the cause - CCB, BB; needs close
examination of the cause of the tachycardia; decreases diastolic filling time
and EF
A-fib Ans - control the rate to enable filling and keep CO up - CCB, BB,
anticoagulants (aspirin, coumadin, xarelto); convert to NSR - not an option for
most people (amiodarone, diltiazem, cardioversion, ablation)
PVCs Ans - look for a cause and treat it - oxygen
VT Ans - check on the patient to ensure VT is real; if responsive =
"stable" - amiodarone, call a code; if unresponsive = "stable" - immediate
defibrillation and code
VF Ans - immediate defibrillation per ACLS; no such thing as a stable
patient, will progress to asystole if no interventions
70-100 Ans - Map: most accurate indicator of organ perfusion
PVC arterial curve change Ans - poor perfusion w/ this dysrhythmia;
single, non-perfused beat; waveform drops off
A-fib arterial curve change Ans - variable arterial pressure b/c of the
differences in stroke volume between each beat; irregular atrial pulsations
CVP Ans - reflects mean right atrial pressure - right heart preload
indicator and volume status; subclavian or jugular insertion; can see if patient
is fluid overloaded or fluid depleted
Low CVP intervention Ans - decreased blood returning to the heart =
fluid deficient, give fluids, vasoconstrictor
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 $9.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
77254 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now