This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: How many time constants are necessary for 95 of the tidal volume (VT) to be delivered from a ... (Read 58 times)

mp14

  • Hero Member
  • *****
  • Posts: 534
on: Jul 16, 2018
How many time constants are necessary for 95 of the tidal volume (VT) to be delivered from a mechanical ventilator?
 
  a. 1
  b. 2
  c. 3
  d. 4

Question 2

Compute the inspiratory time necessary to ensure 100 of the volume is delivered to an intubat-ed patient with a Cs = 60 mL/cm H2O and the Raw = 6 cm H2O/(L/sec).
 
  a. 0.36 second
  b. 0.5 second
  c. 1.4 second
  d. 1.8 second


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

underwood14

  • Sr. Member
  • ****
  • Posts: 346
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: C
One time constant allows 63 of the volume to be inhaled; 2 time constants allow about 86 of the volume to be inhaled; 3 time constants allow about 95 to be inhaled; 4 time constants allow about 98 to be inhaled; and 5 time constants allow 100 to be inhaled.

Answer to Question 2

ANS: D
Time constant (TC) = C (L/cm H2O)  R (cm H2O/(L/sec)). 100 of the volume will be delivered in 5 time constants. Therefore, multiply 5 times the time constant.


mp14

  • Member
  • Posts: 534
Reply 2 on: Jul 16, 2018
Wow, this really help

mcarey591

  • Member
  • Posts: 365
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

Everyone has one nostril that is larger than the other.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Tracking time of marker entry generates a chromosome map Tracking time of marker entry generates a chromosome map
Nerves can transmit many signals at the same time Nerves can transmit many signals at the same time
In 2008, the U.S. economy suffered a gaping wound as several trillion dollars were ripped out of it. In 2008, the U.S. economy suffered a gaping wound as several trillion dollars were ripped out of it.
Anatomy of the Large Intestine By the time chyme reaches the large intestine, most of its nutrients Anatomy of the Large Intestine By the time chyme reaches the large intestine, most of its nutrients
Estimated number of new HIV infections per year over time period in Canada Estimated number of new HIV infections per year over time period in Canada
Time-of-entry mapping Time-of-entry mapping
Video: Random alignment at Metaphase I Animation

For a complete list of videos, visit our video library