LPN Respiratory Care and Oxygenation 2

Question 1

A patient with asthma is having an acute attack. Which medication should the LPN anticipate administering first?

Accepted Answer

Short-acting beta-2 agonist (albuterol)

Answer

Short-acting beta-2 agonists like albuterol cause rapid bronchodilation and are the first-line rescue medication for acute asthma attacks.

Question 2

Why is it important to maintain a flow rate of at least 5 L/min when using a simple face mask?

Accepted Answer

To prevent CO2 rebreathing

Answer

A simple face mask must have a flow rate of at least 5 L/min to flush exhaled CO2 out of the mask reservoir; lower rates allow CO2 to accumulate and be rebreathed.

Question 3

Which assessment finding is most indicative of pneumonia?

Accepted Answer

Bronchial breath sounds over peripheral lung fields

Answer

Bronchial breath sounds heard over peripheral lung fields (where vesicular sounds are normal) indicate consolidation of lung tissue, a hallmark of pneumonia.

Question 4

A patient with a spontaneous pneumothorax would most likely exhibit which assessment finding on the affected side?

Accepted Answer

Absent or markedly decreased breath sounds

Answer

A pneumothorax causes air to enter the pleural space and collapse the lung, resulting in absent or markedly decreased breath sounds on the affected side.

Question 5

Which principle should the LPN follow when performing oropharyngeal suctioning?

Accepted Answer

Limit each suctioning pass to no longer than 10-15 seconds

Answer

Limiting each suction pass to 10-15 seconds prevents hypoxia and tracheal mucosal trauma; suction is only applied while withdrawing the catheter.

LPN - Licensed Practical Nurse Practice Test

LPN - Licensed Practical Nurse Practice Test

LPN Respiratory Care and Oxygenation 2