This topic contains a solution. Click here to go to the answer

Author Question: The set tidal volume is 500 mL. During the first breath, the exhaled volume measures 390 mL, with a ... (Read 54 times)

xclash

  • Hero Member
  • *****
  • Posts: 681
The set tidal volume is 500 mL. During the first breath, the exhaled volume measures 390 mL, with a peak pressure of 18 cm H2O.
 
  The second breath returns 460 mL, with 20 cm H2O. The third breath has a peak pressure of 22 cm H2O, with an exhaled volume of 500 mL. This can be described as what type of system?
  a. Open-loop c. Single-circuit
  b. Closed-loop d. Double-circuit

Question 2

A patient is receiving a continuous positive airway pressure of 10 cm H2O via mask from a Downs continuous positive airway pressure generator. During each inspiration, the pressure ma-nometer decreases to 3 cm H2O.
 
  The patient is diaphoretic, tachypneic, and tachycardic. To correct this situation, the respiratory therapist should do which of the following?
  a. Increase the gas flow c. Tighten the fit of the mask
  b. Increase the pres-sure d. Replace the spring-loaded valve



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

frejo

  • Sr. Member
  • ****
  • Posts: 349
Answer to Question 1

ANS: B
This is a closed-loop system because the ventilator is making changes to the pressure based on the exhaled tidal volume. The pressure is being increased incrementally, which increases the exhaled volume to the set tidal volume.

Answer to Question 2

ANS: A
The patient is pulling in more than the flow of the continuous positive airway pressure system is able to provide. This is evident by the swing in pressures between 10 cm H2O and 3 cm H2O. In-creasing the flow would decrease the patient's work of breathing. Increasing pressure would make the patient work harder because of the inadequate flow rate. If there was a leak through an improperly fitting mask, very little pressure could be maintained. Replacement of the spring-loaded valve would not solve this problem.




xclash

  • Member
  • Posts: 681
Reply 2 on: Jul 16, 2018
Great answer, keep it coming :)


bblaney

  • Member
  • Posts: 323
Reply 3 on: Yesterday
Excellent

 

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

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?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

For a complete list of videos, visit our video library