« previous next »

Author Question: The most common concentration of heliox is ______________________________. a. 50 helium:50 oxygen ... (Read 75 times)

swpotter12

  • Hero Member
  • *****
  • Posts: 527
on: Jul 16, 2018
The most common concentration of heliox is ___________________ ___________.
 
  a. 50 helium:50 oxygen
  b. 60 helium:40 oxygen
  c. 70 helium:30 oxygen
  d. 80 helium:20 oxygen

Question 2

An 80 He:20 O2 mixture is being delivered to an asthmatic patient by a nonrebreather mask through an oxygen flow meter set at 8 L/min. What is the actual flow delivered to the patient?
 
  a. 10 L/min
  b. 12 L/min
  c. 14 L/min
  d. 18 L/min


Swizqar

  • Sr. Member
  • ****
  • Posts: 357
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: D
The most commonly used concentration of heliox is 80:20 (80 helium and 20 oxygen). This mixture provides the greatest amount of helium, and therefore the lowest density gas, without providing subambient levels of oxygen. Concentrations as low as 50 have been used effectively in patients with large airway obstructions.

Answer to Question 2

ANS: C
The conversion factor for an 80:20 heliox mixture is 1.8. 8  1.8 = 14.4 L/min.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

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.

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Common invasive species in the Adelaide Hills: Olive, Artichoke thistle, Fennel and Bamboo Common invasive species in the Adelaide Hills: Olive, Artichoke thistle, Fennel and Bamboo
Common structural features of bacterial cells Common structural features of bacterial cells
Myocardial Oxygen supply and demand Myocardial Oxygen supply and demand
Combined effects of CO2 and BPG on oxygen binding by hemoglobin Combined effects of CO2 and BPG on oxygen binding by hemoglobin
This living protozoan is the common Paramecium multimicronucleatum that moves by means of its numero This living protozoan is the common Paramecium multimicronucleatum that moves by means of its numero
Three common eukaryotic promoter consensus sequence elements Three common eukaryotic promoter consensus sequence elements
Video: Rods and Cones Animation

For a complete list of videos, visit our video library