Oxygen Therapy and Related Devices

These flashcards cover key concepts related to oxygen therapy, including delivery devices, flow rates, definitions of terms like hypoxia and hypoxemia, and the properties and uses of medical gases.

What is hypoxemia?

Decreased oxygen levels in the blood.

What is hypoxia?

Decreased oxygen levels at the tissue level.

What is the normal filling pressure for gas cylinders?

2000 psi.

What percentage of oxygen is found in the Earth's atmosphere?

20.9%.

What is the FiO2 range for nasal cannula?

24% to 44%.

What is the minimum flow for a simple mask?

5 LPM.

What are the hazards of oxygen therapy?

O2 induced hypoventilation, absorption atelectasis, O2 toxicity, retinopathy of prematurity.

What type of mask delivers 60-80% FiO2?

Non-rebreathing mask.

What is the flow range for non-rebreathing masks?

10-15 LPM.

What should be monitored when using high flow systems?

Patient's inspiratory flow demands.

What is the purpose of humidifiers in oxygen therapy?

To provide humidity for more comfortable inspired gas.

How much will the oxygen percentage increase with each liter of flow in nasal cannula?

Increases by 4% for every liter.

What is a complication of all oxygen delivery devices?

Skin breakdown.

What is the role of pulse oximetry?

To measure the oxygen saturation of hemoglobin non-invasively.

What does an FiO2 of 0.5 indicate?

50% oxygen concentration.

What type of nebulizer is commonly used for non-medicated aerosols?

Large volume jet nebulizers.

What is the normal SpO2 range?

95% to 97%.

What color is a full oxygen cylinder typically?

Green (but the label should also be checked to confirm contents).

What is a common oxygen delivery rate for nasal cannula?

Usually 6 LPM.

What kind of mask is a T-Piece or Brigg's adaptor used with?

Tracheostomy patients.

What effect does supplemental oxygen have on the cardiopulmonary workload?

It decreases the workload associated with compensatory responses to hypoxemia.

What are the components of air that we breathe?

Oxygen, carbon dioxide, nitrogen, and other trace elements.

What does the pop-off safety do in a humidifier?

Prevents overfilling, ensuring safe operation.

What is the significance of a nebulizer producing continuous mist?

It indicates that the gas flow is adequate.

What is the critical value of SpO2 that should prompt further evaluation?

90%.

What does a venturi mask provide?

A specific FiO2 depending on the setting of the entrainment port.

What is hypoxemia?

Decreased oxygen levels in the blood.

What is hypoxia?

Decreased oxygen levels at the tissue level.

What is the normal filling pressure for gas cylinders?

2000 psi.

What percentage of oxygen is found in the Earth's atmosphere?

20.9%.

What is the FiO2 range for nasal cannula?

24% to 44%.

What is the minimum flow for a simple mask?

5 LPM.

What are the hazards of oxygen therapy?

O2 induced hypoventilation, absorption atelectasis, O2 toxicity, retinopathy of prematurity.

What type of mask delivers 60-80% FiO2?

Non-rebreathing mask.

What is the flow range for non-rebreathing masks?

10-15 LPM.

What should be monitored when using high flow systems?

Patient's inspiratory flow demands.

What is the purpose of humidifiers in oxygen therapy?

To provide humidity for more comfortable inspired gas.

How much will the oxygen percentage increase with each liter of flow in nasal cannula?

Increases by 4% for every liter.

What is a complication of all oxygen delivery devices?

Skin breakdown.

What is the role of pulse oximetry?

To measure the oxygen saturation of hemoglobin non-invasively.

What does an FiO2 of 0.5 indicate?

50% oxygen concentration.

What type of nebulizer is commonly used for non-medicated aerosols?

Large volume jet nebulizers.

What is the normal SpO2 range?

95% to 97%.

What color is a full oxygen cylinder typically?

Green (but the label should also be checked to confirm contents).

What is a common oxygen delivery rate for nasal cannula?

Usually 6 LPM.

What kind of mask is a T-Piece or Brigg's adaptor used with?

Tracheostomy patients.

What effect does supplemental oxygen have on the cardiopulmonary workload?

It decreases the workload associated with compensatory responses to hypoxemia.

What are the components of air that we breathe?

Oxygen, carbon dioxide, nitrogen, and other trace elements.

What does the pop-off safety do in a humidifier?

Prevents overfilling, ensuring safe operation.

What is the significance of a nebulizer producing continuous mist?

It indicates that the gas flow is adequate.

What is the critical value of SpO2 that should prompt further evaluation?

90%.

What does a venturi mask provide?

A specific FiO2 depending on the setting of the entrainment port.

What is the primary difference between low-flow and high-flow oxygen delivery systems?

Low-flow systems provide only a portion of the patient's inspiratory needs, with the rest coming from room air; high-flow systems provide the entire inspiratory flow at a precise FiO2.

What type of mask is similar to a non-rebreathing mask but allows some rebreathing of exhaled air?

A partial rebreathing mask.

What is the typical FiO2 range for a partial rebreathing mask?

40-70% at flow rates of 6-10 LPM.

What are common visible signs of hypoxemia?

Cyanosis, shortness of breath, increased heart rate, confusion, and restlessness.

What is a common type of humidifier used with low-flow oxygen delivery devices?

A bubble humidifier.