Oxygen and Respiratory Assistance Flashcards
6 cards from real PCT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Oxygen and Respiratory Assistance flashcards as text
A simple face mask delivers oxygen at what concentration range?
Answer: 35-60%
A simple face mask delivers 35-60% FiO2 at flow rates of 6-10 L/min, providing moderate oxygen concentrations.
Pursed-lip breathing is beneficial for patients with COPD because it:
Answer: Creates back pressure that keeps airways open longer during exhalation
Pursed-lip breathing creates positive pressure during exhalation that prevents small airways from collapsing, allowing more complete air emptying.
Which sign indicates a patient is experiencing respiratory distress?
Answer: Use of accessory muscles and nasal flaring
Use of accessory muscles (neck, shoulders, intercostals) and nasal flaring indicate the patient is working harder than normal to breathe.
When collecting a sputum specimen, the patient should be instructed to:
Answer: Take several deep breaths and cough deeply to bring up secretions from the lungs
Deep coughing produces sputum from the lower respiratory tract, which is needed for accurate culture and sensitivity testing.
Oxygen should be humidified when delivered at flow rates above:
Answer: 4 L/min
Flow rates above 4 L/min dry the mucous membranes of the nose and airway, making humidification necessary for patient comfort and airway protection.
The PCT observes a patient on oxygen removing their nasal cannula repeatedly. The appropriate action is:
Answer: Assess why the patient is removing it, adjust for comfort, and notify the nurse
Understanding the reason (discomfort, confusion, dryness) allows targeted interventions while ensuring the patient continues to receive needed oxygen.