« previous next »

Author Question: What is the maximum tidal volume available for a time-triggered, pressure-limited, time-cycled ... (Read 53 times)

shenderson6

  • Hero Member
  • *****
  • Posts: 573
on: Jul 16, 2018
What is the maximum tidal volume available for a time-triggered, pressure-limited, time-cycled infant ventilator with a set inspiratory time of 0.5 second and a set flow rate of 12 L/min?
 
  a. 36 mL c. 240 mL
  b. 100 mL d. 250 mL

Question 2

Circuit positive end-expiratory pressure may be avoided by using:
 
  a. demand flow. c. flow interrupter.
  b. continuous flow. d. overpressure-relief valve.


Danny Ewald

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: B
Tidal volume = Inspiratory time (seconds)  Flow (L/min)  60 = 0.5  12 L/min  60 = 0.1 L, or 100 mL.

Answer to Question 2

ANS: A
Demand flow is believed by some clinicians to be advantageous to operator-selected, continu-ous-flow systems because continuous-flow systems tend to produce resistance to expiration at the airway, commonly known as circuit positive end-expiratory pressure. For patients whose ven-tilatory needs include high inspiratory flows but low end-expiratory pressure, the demand system eliminates the need to set a high continuous flow.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

(a) Mean duration (days) and (b) average maximum depth (mm) of snow cover throughout northern latitu (a) Mean duration (days) and (b) average maximum depth (mm) of snow cover throughout northern latitu
Attention and memory are in demand during circle time. Attention and memory are in demand during circle time.
Vapor Pressure and Saturation Vapor Pressure and Saturation
How to quickly determine the maximum or minimum value of a quadratic equation in standard form How to quickly determine the maximum or minimum value of a quadratic equation in standard form
Physics - Density, Pressure, and Pascal's Principle Physics - Density, Pressure, and Pascal's Principle
A mother invests $9000 in a bank account at the time of her daughter's birth. The interest is ... A mother invests $9000 in a bank account at the time of her daughter's birth. The interest is ...
Video: Introduction to Pre-eclampsia

For a complete list of videos, visit our video library