GAS EXCHANGE AND OXYGENATION ATI
COMPETENCY REVIEW 2026 MOCK TEST
COMPLETE KEY INSIGHTS
◉ A nurse is preparing to suction a client's tracheostomy. Which of
the following actions should the nurse take?
Suction for 30 seconds with each pass.
Use a rotating motion when inserting the catheter from the
tracheostomy.
Allow 1 min between each pass to reoxygenate the lungs.
Set the suction pressure to 180mm Hg.
Answer: Allow 1 min between each pass to reoxygenate the lungs.
to allow client to cough and breathe deeply and to allow the lungs to
reoxygenate
◉ A nurse is caring for a client who has a tracheostomy. Which of the
following pieces of equipment should the nurse use when
administering oxygen to this client?
Distilled water for humidification
, A tracheostomy collar
A nasal cannula
An aerosol mask
Answer: tracheostomy collar
fits over tracheostomy and held in place by an adjustable elastic
strap that fits around clients neck
provides the client with prescribed oxygen concentration and high
humidity
◉ A home health nurse is providing teaching to a client who has just
started receiving oxygen therapy via mask. The nurse should include
which of the following instructions?
"Clean the mask with soapy water once every other day."
"Reposition the elastic band frequently."
"Apply petroleum jelly around and inside the nares."
"Make sure there is adequate condensation in the tubing."
Answer: "Reposition the elastic band frequently."
can cause pressure on skin and lead to breakdown. padding them or
changing positions can help prevent this complication
COMPETENCY REVIEW 2026 MOCK TEST
COMPLETE KEY INSIGHTS
◉ A nurse is preparing to suction a client's tracheostomy. Which of
the following actions should the nurse take?
Suction for 30 seconds with each pass.
Use a rotating motion when inserting the catheter from the
tracheostomy.
Allow 1 min between each pass to reoxygenate the lungs.
Set the suction pressure to 180mm Hg.
Answer: Allow 1 min between each pass to reoxygenate the lungs.
to allow client to cough and breathe deeply and to allow the lungs to
reoxygenate
◉ A nurse is caring for a client who has a tracheostomy. Which of the
following pieces of equipment should the nurse use when
administering oxygen to this client?
Distilled water for humidification
, A tracheostomy collar
A nasal cannula
An aerosol mask
Answer: tracheostomy collar
fits over tracheostomy and held in place by an adjustable elastic
strap that fits around clients neck
provides the client with prescribed oxygen concentration and high
humidity
◉ A home health nurse is providing teaching to a client who has just
started receiving oxygen therapy via mask. The nurse should include
which of the following instructions?
"Clean the mask with soapy water once every other day."
"Reposition the elastic band frequently."
"Apply petroleum jelly around and inside the nares."
"Make sure there is adequate condensation in the tubing."
Answer: "Reposition the elastic band frequently."
can cause pressure on skin and lead to breakdown. padding them or
changing positions can help prevent this complication
