A client is receiving oxygen therapy via a nasal cannula. When the client asks the nurse why he needs to have oxygen tubing in his nose, which of the following explanations about the cannula should the nurse give him?

"It delivers a specific concentration of oxygen constantly."

It allows you to remove it for a while when it gets uncomfortable."

"It delivers the low concentration of oxygen you need."

"It delivers the highest concentration of oxygen possible."

Answer and Explanation

The Correct Answer is C

A.   Nasal cannulas deliver a low flow rate of oxygen, which means the concentration of oxygen delivered is not constant and can vary depending on the client's breathing rate and depth.
B.   Nasal cannulas are designed to be worn continuously, and removing them can disrupt the delivery of oxygen and potentially worsen the client's condition.
C.   Nasal cannulas are typically used to deliver low concentrations of oxygen, which is often sufficient for patients with mild to moderate respiratory conditions.
D.   Nasal cannulas cannot deliver the highest concentration of oxygen possible. For patients who require higher concentrations of oxygen, other delivery methods, such as a face mask or mechanical ventilation, may be necessary.

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Correct Answer is D

Explanation

A. Hypoxia, or decreased oxygen levels in the blood, can lead to cold, clammy skin. This is because the body's blood vessels constrict in an attempt to conserve heat and oxygen.
B. Dysphagia is difficulty swallowing. It is not a common manifestation of hypoxia.
C. Nausea is not a common manifestation of hypoxia. However, it can be a symptom of other conditions that may accompany hypoxia, such as respiratory distress or anxiety.
D. Agitation is a common manifestation of hypoxia. As oxygen levels decrease, the brain becomes deprived of oxygen, which can lead to confusion, irritability, and agitation.

A. Cyanosis B. Muscle tremors C. Inspiratory stridor D. Nausea E. Retractions

Correct Answer is ["A","C","E"]

Explanation

A. Cyanosis, which is a bluish discoloration of the skin and mucous membranes, indicates inadequate oxygenation and can be a sign of severe airway obstruction. It is a critical sign that requires immediate attention.
B. This option is not typically associated with airway obstruction. Muscle tremors can be caused by various factors, including medications (like bronchodilators), anxiety, or neurological conditions, but they are not a direct manifestation of airway obstruction.
C. Inspiratory stridor is a high-pitched wheezing sound that occurs when there is a partial obstruction of the upper airway. It is a classic sign of airway obstruction and requires immediate evaluation and intervention.
D. This option is not directly related to airway obstruction. While nausea can occur for various reasons, including anxiety or certain medications, it is not a typical manifestation of airway obstruction.
E. Retractions refer to the inward movement of the skin between the ribs or around the neck during inhalation, indicating that the client is using accessory muscles to breathe due to increased effort from airway obstruction. This is a significant sign of respiratory distress.

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A client is receiving oxygen therapy via a nasal cannula. When the client asks the nurse why he needs to have oxygen tubing in his nose, which of the following explanations about the cannula should the nurse give him?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Correct Answer is D

Explanation

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Correct Answer is ["A","C","E"]

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