« previous next »

Author Question: What can cause a decrease in pump flow? a. Both an increase in preload and an in-crease in ... (Read 22 times)

segrsyd

  • Hero Member
  • *****
  • Posts: 530
on: Jul 16, 2018
What can cause a decrease in pump flow?
 
  a. Both an increase in preload and an in-crease in afterload
  b. Both a decrease in preload and a decrease in afterload
  c. An increase in preload or decrease in af-terload
  d. A decrease in preload or increase in after-load

Question 2

Which of the following is the typical ratio of sweep flow to pump flow?
 
  a. 1:1
  b. 3:1
  c. 6:1
  d. 9:1


ecox1012

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: D
A decrease in preload or increase in afterload can cause a decreased pump flow.

Answer to Question 2

ANS: A
The ratio of sweep flow to pump flow is often 1:1. When using 4 L/min pump flow, typically the sweep flow would be initiated at 4 L/min. The oxygenator functions to provide gas exchange much like native lungs perform gas exchangeO2 diffuses into the blood from a gas source with a higher partial pressure and carbon dioxide diffuses out of the blood into a gas source with a lower partial pressure.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

The coolant temperature is controlled by the thermostat, which opens and allows coolant to flow to ... The coolant temperature is controlled by the thermostat, which opens and allows coolant to flow to ...
When the exhaust is lean, the PCM applies a positive current into the pump cell. When the exhaust is lean, the PCM applies a positive current into the pump cell.
Removing the bed from a pickup truck makes gaining access to the fuel pump a lot easier. Removing the bed from a pickup truck makes gaining access to the fuel pump a lot easier.
Flow aloft and cyclone migration Flow aloft and cyclone migration
Schematic of a flow cytometer. The laser interacts with the cell in the quartz flow cell. Three ... Schematic of a flow cytometer. The laser interacts with the cell in the quartz flow cell. Three ...
Flow data for a healthy donor (top panel) and a HIV positive patient. CD3 is a T-cell marker, CD4 is ... Flow data for a healthy donor (top panel) and a HIV positive patient. CD3 is a T-cell marker, CD4 is ...
Video: A timeline of the teeth (Explained - No Audio)

For a complete list of videos, visit our video library