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 B

Explanation

A. Aminophylline is a bronchodilator used to treat asthma. It is a common medication for asthma exacerbations and would be appropriate in this case.
B. Propranolol is a beta-blocker, which can worsen asthma symptoms by narrowing the airways. It should be avoided in clients with asthma.
C. Montelukast is a leukotriene receptor antagonist used to prevent asthma attacks. It is not typically used to treat acute exacerbations, but it can be used as part of long-term management.

D. Prednisone is a corticosteroid used to reduce inflammation in the airways. It is a common medication for asthma exacerbations and would be appropriate in this case.

A. Increasing dyspnea B. Facial flushing C. Dry cough D. Decreasing respiratory rate

Correct Answer is A

Explanation

A. Atelectasis, which is the collapse of a lung or part of a lung, can lead to decreased oxygen intake and increasing shortness of breath. Therefore, the nurse should expect the client to experience increasing dyspnea.
B. Facial flushing is not typically associated with atelectasis. It can be a sign of other conditions, such as fever or anxiety.
C. A dry cough can be a symptom of atelectasis, but it is not always present. The severity of the cough can vary depending on the extent of the atelectasis.
D. Atelectasis can lead to decreased oxygen intake, which can cause the body to increase the respiratory rate to compensate. Therefore, the nurse should expect an increasing respiratory rate, not a decreasing one.

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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?

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