AG2 Mechanical ventilation & oxygen Test Questions and Answers Graded A+
1. Nasal cannula: FiO2 24% to 44% at flow rates of 1 to 6 L/min -Extended use can lead to skin breakdown and
drying of the mucous membranes
Use water-soluble gel to prevent dry nares.
Provide humidification for flow rates of 4 L/min and greater.
2. Non-rebreather mask: FiO2 80% to 95% at flow rates of 10 to 15 L/min to keep the reservoir bag
two-thirds full during inspiration and expiration.
3. High flow nasal cannula: Able to deliver adequately heated and humidified medical gas at flows up to
60 L/min. Reduced anatomical dead space, PEEP, constant FIO2, and good humidification. ***50L = as much PEEP as
a vent***
4. Early signs hypoxemia: ÏTachypnea ÏTachycardia ÏRestlessness ÏPale skin and mucous membranes Ï
Elevated blood pressure ÏFindings of respiratory distress (use of accessory muscles, nasal flaring, tracheal tugging,
and adventitious lung sounds)
5. Late signs hypoxemia: ÏConfusion and stupor ÏCyanotic skin and mucous membranes ÏBradypnea Ï
Bradycardia ÏHypotension ÏCardiac dysrhythmias
6. Continuous positive airway pressure (CPAP): -Provides positive pressure using a leak-proof
mask via a noninvasive positive-pressure ventilation device.
-Keep the airways open throughout the respiratory cycle and improve alveoli's gas exchange.
-Most ettective treatment for sleep apnea
7. Bi-level positive airway pressure (BiPAP): Machine cycles to provide a set positive inspiratory
pressure when inspiration takes place and then during expiration to deliver a lower set end expiratory pressure. Ï
Requires wearing a leak-proof mask. ÏMost often used for clients who have COPD and who require ventilatory assistance.
ÏAssess skin around the masks for breakdown as a tight seal is required.
8. Indications for intubation: • Maintain airway
• Protect airway (GCS<8)
• Impending/Actual Respiratory Failure
• Cardiac Failure/Arrest
9. Nursing actions intubation: Have ambu bag
Ensure intubation attempts are not more than 30 seconds
Check ETT placement with ETCO2 monitor, stat portable CXR, & bilateral breath sounds
10. Assist control ventilation: -Not a weaning vent mode
-Has a preset rate and preset tidal volume
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1. Nasal cannula: FiO2 24% to 44% at flow rates of 1 to 6 L/min -Extended use can lead to skin breakdown and
drying of the mucous membranes
Use water-soluble gel to prevent dry nares.
Provide humidification for flow rates of 4 L/min and greater.
2. Non-rebreather mask: FiO2 80% to 95% at flow rates of 10 to 15 L/min to keep the reservoir bag
two-thirds full during inspiration and expiration.
3. High flow nasal cannula: Able to deliver adequately heated and humidified medical gas at flows up to
60 L/min. Reduced anatomical dead space, PEEP, constant FIO2, and good humidification. ***50L = as much PEEP as
a vent***
4. Early signs hypoxemia: ÏTachypnea ÏTachycardia ÏRestlessness ÏPale skin and mucous membranes Ï
Elevated blood pressure ÏFindings of respiratory distress (use of accessory muscles, nasal flaring, tracheal tugging,
and adventitious lung sounds)
5. Late signs hypoxemia: ÏConfusion and stupor ÏCyanotic skin and mucous membranes ÏBradypnea Ï
Bradycardia ÏHypotension ÏCardiac dysrhythmias
6. Continuous positive airway pressure (CPAP): -Provides positive pressure using a leak-proof
mask via a noninvasive positive-pressure ventilation device.
-Keep the airways open throughout the respiratory cycle and improve alveoli's gas exchange.
-Most ettective treatment for sleep apnea
7. Bi-level positive airway pressure (BiPAP): Machine cycles to provide a set positive inspiratory
pressure when inspiration takes place and then during expiration to deliver a lower set end expiratory pressure. Ï
Requires wearing a leak-proof mask. ÏMost often used for clients who have COPD and who require ventilatory assistance.
ÏAssess skin around the masks for breakdown as a tight seal is required.
8. Indications for intubation: • Maintain airway
• Protect airway (GCS<8)
• Impending/Actual Respiratory Failure
• Cardiac Failure/Arrest
9. Nursing actions intubation: Have ambu bag
Ensure intubation attempts are not more than 30 seconds
Check ETT placement with ETCO2 monitor, stat portable CXR, & bilateral breath sounds
10. Assist control ventilation: -Not a weaning vent mode
-Has a preset rate and preset tidal volume
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