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Oxygen saturation Measurement

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Total Questions : 5

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Question 1:

A nurse is assessing a client's oxygen saturation level. What is the most common method used to measure oxygen saturation?

A. Arterial blood gas analysis B. Capnography monitoring C. Pulse oximetry D. Spirometry testing

Answer and Explanation

Choice A:

Arterial blood gas analysis provides more comprehensive information about the client's oxygenation status but is an invasive procedure that requires drawing arterial blood.

Choice B:

Capnography monitoring measures the level of carbon dioxide in exhaled breath and does not directly measure oxygen saturation.

Choice C:

Pulse oximetry is the most common method used to measure oxygen saturation noninvasively. It involves using a pulse oximeter, which uses light to measure the oxygen saturation level of arterial blood.

Choice D:

Spirometry testing measures lung function, such as lung volume and airflow, but does not directly measure oxygen saturation.

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Question 2:

A nurse is assessing a client's oxygen saturation and obtains a reading of 85%. What action should the nurse take?

A. Document the oxygen saturation as normal. B. Recheck the oxygen saturation in 15 minutes. C. Initiate oxygen therapy. D. Instruct the client to take deep breaths.

Answer and Explanation

Choice A:

Documenting the oxygen saturation as normal would be incorrect, as it indicates hypoxemia.

Choice B:

Rechecking the oxygen saturation in 15 minutes may delay appropriate intervention if the client's oxygenation remains low.

Choice C:

An oxygen saturation reading of 85% indicates hypoxemia (low blood oxygen levels). The nurse should initiate oxygen therapy to improve oxygenation and ensure adequate oxygen supply to the tissues.

Choice D:

Instructing the client to take deep breaths does not address the underlying issue of hypoxemia and may not be sufficient to improve oxygenation.

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Question 3:

A nurse is assessing a client's oxygen saturation and obtains a reading of 98%. What does this reading indicate?

A. Hypoxemia B. Hyperoxia C. Hypocapnia D. Hypercapnia

Answer and Explanation

Choice A:

Hypoxemia refers to low blood oxygen levels, which is not the case with a reading of 98%.

Choice B:

An oxygen saturation reading of 98% indicates a high level of blood oxygen saturation, which is referred to as hyperoxia. It means the client has a sufficient supply of oxygen in their blood.

Choice C:

Hypocapnia refers to low carbon dioxide levels, which is not related to oxygen saturation.

Choice D:

Hypercapnia refers to high carbon dioxide levels, which is not related to oxygen saturation.

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Question 4:

A nurse is assessing a client's oxygen saturation and obtains a reading of 92%. What action should the nurse take?

A. Document the oxygen saturation as normal. B. Recheck the oxygen saturation in 30 minutes. C. Initiate supplemental oxygen therapy. D. Instruct the client to perform deep breathing exercises.

Answer and Explanation

Choice A:

Documenting the oxygen saturation as normal would be incorrect, as it indicates mild hypoxemia.

Choice B:

Rechecking the oxygen saturation in 30 minutes may delay appropriate intervention if the client's oxygenation remains low.

Choice C:

An oxygen saturation reading of 92% indicates mild hypoxemia. The nurse should initiate supplemental oxygen therapy to improve oxygenation and ensure adequate oxygen supply to the tissues.

Choice D:

Instructing the client to perform deep breathing exercises does not address the underlying issue of hypoxemia and may not be sufficient to improve oxygenation.

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Question 5:

A nurse is assessing a client's oxygen saturation and obtains a reading of 100%. What does this reading indicate?

A. Hypoxemia B. Hyperoxia C. Hypocapnia D. Hypercapnia

Answer and Explanation

Choice A:

Hypoxemia refers to low blood oxygen levels, which is not the case with a reading of 100%.

Choice B:

An oxygen saturation reading of 100% indicates a high level of blood oxygen saturation, which is referred to as hyperoxia. It means the client has a sufficient supply of oxygen in their blood.

Choice C:

Hypocapnia refers to low carbon dioxide levels, which is not related to oxygen saturation.

Choice D:

Hypercapnia refers to high carbon dioxide levels, which is not related to oxygen saturation.

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Oxygen saturation Measurement

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