PCT Oxygen and Respiratory Assistance 2

Question 1

A nasal cannula delivers oxygen at flow rates of:

Accepted Answer

1-6 liters per minute

Answer

Nasal cannulas deliver low-flow oxygen at 1-6 L/min, providing approximately 24-44% FiO2 depending on the flow rate.

Question 2

Which safety precaution is essential when oxygen is in use?

Accepted Answer

Post 'No Smoking' signs and remove open flames from the area

Answer

Oxygen supports combustion and makes fires burn faster and hotter, so all ignition sources must be eliminated from the area.

Question 3

When suctioning a patient's airway, the PCT should apply suction for no longer than:

Accepted Answer

10-15 seconds

Answer

Suctioning removes air along with secretions, so limiting each pass to 10-15 seconds prevents hypoxia and mucosal trauma.

Question 4

Deep breathing and coughing exercises are important for post-operative patients because they:

Accepted Answer

Prevent atelectasis and promote lung expansion

Answer

Post-surgical patients breathe shallowly due to pain, which can cause alveolar collapse (atelectasis). Deep breathing and coughing expand the lungs and clear secretions.

Question 5

The PCT notices that the oxygen tubing has become disconnected from the wall outlet. The FIRST action should be:

Accepted Answer

Reconnect the tubing immediately

Answer

Immediate reconnection restores oxygen delivery to the patient, preventing desaturation and hypoxia.

Patient Care Technician Test Practice Test

Patient Care Technician Test Practice Test

PCT Oxygen and Respiratory Assistance 2