LPN Respiratory Care and Oxygenation 3

Question 1

An intubated patient's ventilator alarm sounds, showing high peak airway pressure. What should the LPN do first?

Accepted Answer

Assess the patient and check tubing for kinks or obstruction

Answer

Silence the alarm and document it

Answer

Increase the tidal volume setting

Answer

Remove the endotracheal tube immediately

Question 2

Which intervention is most effective for preventing ventilator-associated pneumonia (VAP) in an intubated patient?

Accepted Answer

Maintaining head of bed elevation at 30-45 degrees

Answer

Keeping the head of bed flat at all times

Answer

Performing oral care once daily

Answer

Deflating the endotracheal cuff every 4 hours

Question 3

After a thoracentesis, which assessment finding requires the LPN to report immediately to the physician?

Accepted Answer

Sudden onset of dyspnea and tracheal deviation

Answer

Mild soreness at the puncture site

Answer

Respiratory rate of 18 breaths/min

Answer

SpO2 of 96%

Question 4

Which technique describes correct use of incentive spirometry?

Accepted Answer

Inhale slowly and deeply, hold breath 3-5 seconds, then exhale slowly

Answer

Exhale deeply into the device and hold for 10 seconds

Answer

Breathe rapidly in and out 10 times per set for maximum benefit

Answer

Inhale quickly and forcefully to achieve the highest volume possible

Question 5

A patient has a chest tube connected to water-seal drainage. The LPN notices the water level in the water-seal chamber fluctuates with each breath. What does this indicate?

Accepted Answer

Normal functioning of the water-seal drainage system

Answer

There is an air leak in the drainage system

Answer

The lung is fully re-expanded

Answer

The chest tube is obstructed

Question 6

After a tracheostomy tube change, what is the correct cuff pressure range to prevent aspiration while avoiding tracheal tissue ischemia?

Accepted Answer

20-25 mmHg

Answer

5-10 mmHg

Answer

10-15 mmHg

Answer

35-40 mmHg

Question 7

A patient with pulmonary edema receives IV furosemide (Lasix). Which finding best confirms the medication is effective?

Accepted Answer

Improved SpO2 and decreased crackles on auscultation

Answer

Increased blood pressure

Answer

Decreased urine output

Answer

Elevated body temperature