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

Author Question: A stationary liquid oxygen system contains 80 lb of oxygen when full. A home care patient is using ... (Read 48 times)

FButt

  • Hero Member
  • *****
  • Posts: 519
on: Jul 16, 2018
A stationary liquid oxygen system contains 80 lb of oxygen when full. A home care patient is using it 8 hours each day, during sleep, at a rate of 3 L/min. At this usage, how many days will the liquid oxygen last?
 
  a. 6 c. 19
  b. 8 d. 27

Question 2

Storage of a portable liquid oxygen system adjacent to a heat source will _____ the _____ of the oxygen.
 
  a. Increase; pressure c. Decrease; pressure
  b. Increase; venting d. Decrease; venting


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ebenov

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: C
Use the liquid oxygen duration formula as given previously.
A liter of liquid oxygen weighs 2.5 lb, so: 80 lb/2.5 = 32 L.
Gaseous oxygen occupies a volume that is 860 times the volume of liquid oxygen, so: liters of liquid  860 = liters of gas.
Duration of supply (minutes) = gas supply remaining (in liters)  flow (liters/minute).
Once you get the answer in minutes, you divide by 60 to obtain the number of hours. Then di-vide the number of hours by the usage, which is 8 hr/day; that gives you 19 days.

Answer to Question 2

ANS: B
Liquid oxygen units should not be located adjacent to heat sources, which can accelerate the venting of oxygen.


FButt

  • Member
  • Posts: 519
Reply 2 on: Jul 16, 2018
Excellent

6ana001

  • Member
  • Posts: 311
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Patient receiving ultrasound treatment to the left elbow. Patient receiving ultrasound treatment to the left elbow.
Urinary system Urinary system
Effects of an inhibitor and an uncoupler on oxygen uptake and ATP synthesis Effects of an inhibitor and an uncoupler on oxygen uptake and ATP synthesis
Sign and symptoms of a patient with heart failure Sign and symptoms of a patient with heart failure
Autonomic innervation of the female reproductive system Autonomic innervation of the female reproductive system
Male Reproductive System - Semen Male Reproductive System - Semen
Video: Hormones and the menstrual cycle Animation

For a complete list of videos, visit our video library