« previous next »

Author Question: What flow pattern is least optimal for ventilating a patient with cardiovascular instability? a. ... (Read 16 times)

nummyann

  • Hero Member
  • *****
  • Posts: 576
on: Jul 16, 2018
What flow pattern is least optimal for ventilating a patient with cardiovascular instability?
 
  a. Accelerating flow pattern
  b. Square flow pattern
  c. Decelerating flow pattern
  d. Constant flow pattern

Question 2

Which of the following statements is false regarding the use of an inspiratory pause during me-chanical ventilation?
 
  a. It may be useful in ARDS patients.
  b. It may be useful when obtaining a chest radiograph.
  c. It has been shown to increase effective-ness of bronchodilator therapy.
  d. It will increase mean airway pressure.


Jsherida

  • Sr. Member
  • ****
  • Posts: 314
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: C
A square or even accelerating waveform may be useful in reducing mean airway pressure in pa-tients with severe hypotension or cardiovascular instability.

Answer to Question 2

ANS: C
The use of a single long inspiratory pause (up to 40 sec) has been advocated in the management of acute lung injury/ARDS as a lung recruitment maneuver, and the results have been encourag-ing. Use of an inspiratory pause has been suggested for administration of bronchodilators to im-prove medication delivery. In the treatment of chronic obstructive pulmonary disease patients, however, a 5-sec inspiratory pause did not result in significant improvement in measures related to the effectiveness of the bronchodilator. If a brief inspiratory pause is used, 1:E ratio and mean airway pressure increase. An inspiratory pause of 0.5 to 1.0 sec applied for a single breath is used for measurement of plateau pressure (Pplat) and in estimation of airway resistance (Raw) where PIP is peak inspiratory pressure and is inspiratory peak flow (square wave). An inspiratory pause can also be used to ensure a full inspiration before a chest radiograph is obtained, and this step may improve the quality of the resulting radiograph.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

nummyann

  • Hero Member
  • *****
  • Posts: 576
Reply #2 on: Jul 16, 2018
Thank you


Jsherida

  • Sr. Member
  • ****
  • Posts: 314
Reply #3 on: Jul 16, 2018
No problemo


« previous next »
 

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

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.

Grief Responses and Patient Verbalization Grief Responses and Patient Verbalization
The fuel injectors used on this Honda Civic GX CNG engine are designed to flow gaseous fuel instead ... The fuel injectors used on this Honda Civic GX CNG engine are designed to flow gaseous fuel instead ...
Typical secondary ignition oscilloscope pattern. Typical secondary ignition oscilloscope pattern.
Spring force, crankcase pressure, and intake manifold vacuum work together to regulate the flow rate ... Spring force, crankcase pressure, and intake manifold vacuum work together to regulate the flow rate ...
System of a patient in shock System of a patient in shock
Movement of acorns by blue jays allows gene flow between oak populations Movement of acorns by blue jays allows gene flow between oak populations
Video: Gastroesophageal Reflux Disease (GERD)

For a complete list of videos, visit our video library