A drug that increases the contractility of the heart is known as a positive
inotrope.
chromotrope.
dromotrope.
vasoconstrictor. - ANS-inotrope
A patient with a newly inserted pulmonary catheter begins to cough up blood-tinged sputum.
The most likely cause for this is:
a. pulmonary infarction.
b. pneumothorax.
c. perforation of the heart muscle.
d. pulmonary embolus. - ANS-a. pulmonary infarction.
An increase in CVP during inspiration most likely is caused by:
a. a mechanical breath.
b. the instrument not being zero-balanced correctly.
c. a spontaneous breath.
d. the catheter being inserted into the right ventricle. - ANS-a. a mechanical breath
** a positive-pressure breath will cause the CVP to increase during inspiration
An increase in pulmonary artery systolic pressure is seen in patients with which of the following
conditions?
1. Pulmonary embolus
2. Mitral valve stenosis
3. Right ventricular failure
4. Hypoxia and hypoxemia - ANS-1, 2, and 4
Arterial cannulation is indicated for which of the following?
1. Determining cardiac output
2. Severe hypotension
3. Unstable respiratory failure
4. Avoiding arterial injury from multiple arterial punctures - ANS-2, 3, and 4
At rest, approximately 64% of the total blood volume is stored in the
a. extremities.
b. venous system.
c. lungs.
d. liver. - ANS-venous system.
, Blood flow is directed to organs that have the highest metabolic needs when at rest. Which of
the following organs would have the lowest metabolic needs when at rest?
Liver
Kidneys
Heart
Muscles - ANS-Heart
Both the CVP and the pulmonary artery wedge pressure waveforms have three waves for each
cycle, namely:
a. waves q, r, and s.
b. waves a, c, and v.
c. waves p, t, and u.
d. waves p, r, and v. - ANS-waves a, c, and v
Bradycardia in an adult is defined as a heart rate less than _____ beats/min.
100
60
120
50 - ANS-60
Cardiac output is a product of which two variables? - ANS-HR * SV
Circulation to the vital organs (kidneys, coronary arteries) may be compromised if the MAP falls
to below _____ mm Hg.
a. 80
b. 60
c. 100
d. 120 - ANS-60 mmHg
Complications of direct arterial monitoring include which the following?
1. Infection
2. Ischemia
3. Hemorrhage
4. Hypotension - ANS-1, 2, and 3
How much time is represented on the horizontal axis of the ECG paper by five large boxes? -
ANS-1 s
If, when the pulmonary artery catheter is inserted, there is a rapid increase in the height of the
pressure waveforms with the downstroke dropping near zero, the respiratory therapist should:
a. withdraw the catheter because it has been jammed into the heart wall.
b. inflate the balloon to prevent further damage because the ventricular septum has ruptured.
c. deflate the balloon and withdraw the catheter because it is curling within the atrium.
d. continue the insertion because the catheter now has entered the right ventricle. -
ANS-continue the insertion because the catheter now has entered the right ventricle.
In left ventricular failure, the pulmonary capillary wedge pressure is expected to:
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 Ashley96. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
