Chapter 4 Flashcards
What is hypoxaemia?
Condition when the oxygen level of arterial blood is below normal, and therefore the administration of oxygen or oxygen therapy is necessary.
Will increase alveolar oxygen tension and decrease the effort of breathing.
Insufficient oxygen can lead to what complications?
Cardiac arrhythmias
Tissue injury
Damage to the vital organs
What is a regulator?
Common unit in which a reducing valve and flow meter are joined together
What is a reducing valve?
Allows for the safe release of the highly pressurized oxygen contained in the cylinder.
What is the flow meter?
Dial that allows the operator to determine how much oxygen is delivered to the patient
True or False
Oxygen delivery rate is measured in liters per minute
True
True or False
The amount of oxygen provided to a patient is determined by the condition from which the patient is suffering and by the type of oxygen delivery device being used.
True
True or False
The nasal cannula would be used for a conscious patient suffering from MI or CVA
True
True or False
The bag-mask device is used when the patient is in respiratory arrest and requires complete oxygen delivery
True
What is the most difficult aspect of using a bag-mask device?
Attaining a leak-proof seal around the patient’s face
What do you do to attain a tight seal?
Third, fourth, and fifth fingers should be placed on the bony part of the mandible and the thumb and index finger of the same hand should be placed on the mask.
True or False
Because of difficulties two rescuers are recommended when using a bag-mask.
True
True or False
When using a bag mask, the oxygen regulator should be set to 8-12 L/min, and during ventilation the operator should see the chest rise.
True
if the chest does not rise, adjustments should be made
What size cylinder is recommended for a dental office?
Size E, because it will supply 30 minutes of oxygen and because EMS can arrive at most emergencies within that time frame
What are the steps to operate the portable oxygen tank?
Open oxygen tank valve
Adjust flow valve to appropriate level
Place oxygen delivery device on patient.
