PCT Oxygen and Respiratory Assistance 1

Question 1

What is the primary purpose of oxygen therapy in patient care?

Accepted Answer

To assist breathing and increase oxygen saturation

Answer

The primary purpose of oxygen therapy in patient care is to assist breathing and increase oxygen saturation levels in the blood. It is administered to patients experiencing hypoxemia (low blood oxygen) due to various medical conditions, helping to ensure adequate oxygen delivery to tissues and organs. Oxygen therapy improves respiratory function and supports overall physiological stability.

Question 2

Which device delivers low-flow oxygen to patients?

Accepted Answer

Nasal cannula

Answer

A nasal cannula is a common, comfortable device used to deliver low concentrations of oxygen, typically for patients requiring 1-6 liters per minute. It consists of two prongs that fit into the nostrils, making it suitable for patients who can breathe on their own but need supplemental oxygen. Other options like ventilators and CPAP machines deliver higher flows or positive pressure, while a nebulizer delivers medication.

Question 3

What is the normal oxygen saturation range for a healthy individual?

Accepted Answer

95-100%

Answer

For a healthy individual, normal oxygen saturation (SpO2) levels typically range between 95% and 100%. This indicates that the red blood cells are adequately saturated with oxygen, ensuring proper oxygen delivery to the body's tissues. Values below this range may indicate hypoxemia, requiring further assessment or intervention.

Question 4

Which of the following is a potential hazard of oxygen therapy?

Accepted Answer

Oxygen toxicity

Answer

Oxygen toxicity is a potential hazard of oxygen therapy, especially when high concentrations of oxygen are administered for prolonged periods. Excessive oxygen can damage lung tissue and other organs due to the formation of harmful free radicals. Therefore, oxygen therapy must be carefully monitored and administered at the lowest effective dose.

Question 5

How should an oxygen tank be stored?

Accepted Answer

In a secured upright position away from flammable materials

Answer

Oxygen tanks contain highly pressurized oxygen, which is a fire accelerant. Storing them in a secured upright position prevents them from falling and potentially rupturing, while keeping them away from flammable materials minimizes the risk of fire or explosion. Proper storage is crucial for safety in any healthcare setting.

Patient Care Technician Test Practice Test

Patient Care Technician Test Practice Test

PCT Oxygen and Respiratory Assistance 1