The main goal of a pulse-demand oxygen-delivery system is which of the following?
1. To provide oxygen only during expiration
2. To provide oxygen only during inspiration
3. To deliver oxygen to the patient only after a sufficient inspiratory effort is made and the de-mand valve opens
4. To deliver oxygen at a preset flow rate and close during inspiration to conserve oxygen
a. 1 and 3 c. 2 and 3
b. 2 and 4 d. 1 and 4
ANS: C
Pulse-demand oxygen-delivery systems deliver oxygen to the patient on demand only during in-spiration. Oxygen is delivered to the patient only after a sufficient inspiratory effort is made and the demand valve opens. The demand valve closes during exhalation to conserve oxygen.
You might also like to view...
You are responding to a patient with a tracheostomy tube who is weak and has a fever. In this situation, you can assume:
A) The patient can still speak B) The tracheostomy tube is below the larynx C) The patient is ventilator dependent D) The tracheostomy tube is permanent
The complexity of establishing a diagnosis and/or selecting a management or treatment option is called _________________________.
Fill in the blank(s) with the appropriate word(s).
The abbreviation "QN" means __________ __________
Fill in the blank(s) with correct word
What is a chemical reaction that releases energy in form of heat and light?
A. Fire B. Ignition C. Tetrahedron D. Auto-ignition