A nurse is teaching pursed-lip breathing to a client who has COPD. Which of the following instructions should the nurse include in the teaching?

"Lie down while practicing pursed-lip breathing.".

"Exhale slowly through your mouth.".

"Inhale through pursed lips.".

"Puff your cheeks when exhaling.".

Answer and Explanation

The Correct Answer is B

Choice A rationale:

Lying down while practicing pursed-lip breathing is not the correct instruction. Pursed-lip breathing is usually performed in a sitting or standing position. Lying down can restrict lung expansion and may not effectively support the purpose of this breathing technique, which is to improve airway pressure and reduce air trapping.

Choice B rationale:

"Exhale slowly through your mouth" is the correct instruction for pursed-lip breathing. This technique involves inhaling through the nose for a count of two and exhaling slowly and steadily through pursed lips for a count of four. The goal is to promote better exhalation, prevent airway collapse, and improve oxygen exchange. The rationale behind this choice is grounded in the mechanics of pursed-lip breathing, which helps create backpressure in the airways, maintaining them open and aiding in proper exhalation.

Choice C rationale:

Inhaling through pursed lips contradicts the proper sequence of pursed-lip breathing. The technique involves inhaling through the nose and exhaling through pursed lips. Inhaling through pursed lips would not provide the intended benefits of the technique.

Choice D rationale:

"Puff your cheeks when exhaling" is not the correct instruction. Puffing the cheeks during exhalation does not contribute to the effectiveness of pursed-lip breathing. This action could potentially impede proper exhalation and defeat the purpose of the technique, which is to control airflow and improve breathing efficiency.

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Correct Answer is C

Explanation

Choice A rationale:

Metabolic acidosis is not the correct acid-base imbalance for the given ABG results. Metabolic acidosis is characterized by a low pH (acidic), low bicarbonate (HCO3) levels, and a compensatory decrease in the PaCO2. In the provided ABG results, the pH is elevated, and both the PaCO2 and HCO3 levels are within normal ranges.

Choice B rationale:

Respiratory acidosis is also not the correct acid-base imbalance for the given ABG results. Respiratory acidosis occurs when there is an elevation in PaCO2 due to inadequate ventilation, leading to an acidic pH. In the provided ABG results, the pH is elevated, and the PaCO2 level is within normal range.

Choice C rationale:

Metabolic alkalosis is the correct acid-base imbalance for the given ABG results. Metabolic alkalosis is characterized by an elevated pH, elevated bicarbonate (HCO3) levels, and a compensatory increase in PaCO2. In this case, the pH is higher than the normal range, the HCO3 level is elevated, and the PaCO2 is also slightly increased as the body attempts to compensate.

Choice D rationale:

Respiratory alkalosis is not the correct answer based on the provided ABG results. Respiratory alkalosis is marked by an elevated pH and a decrease in PaCO2 due to excessive ventilation. In the given ABG results, the pH is elevated, but the PaCO2 is not decreased; it's within the normal range.

A. A client who has dehydration with a urine output of 40 mL/hr. B. A client who has cancer and reports pain as 4 on a scale of 0 to 10. C. A client who has asthma and a respiratory rate of 40/min. D. A client who has diabetes mellitus and a fasting blood glucose of 100 mg/dL.

Correct Answer is C

Explanation

Choice A rationale:

Dehydration is a serious condition, and a urine output of 40 mL/hr is indicative of decreased renal perfusion and potential renal failure. However, this situation does not require immediate intervention compared to other choices.

Choice B rationale:

Pain management is important, and a pain score of 4 out of 10 indicates mild to moderate pain. While addressing pain is essential for the client's comfort, it is not an immediate priority compared to the situation presented in another choice.

Choice C rationale:

(Correct Choice) A respiratory rate of 40 breaths per minute in a client with asthma indicates severe respiratory distress. This client is at risk of respiratory failure and requires immediate assessment and intervention.

Choice D rationale:

A fasting blood glucose of 100 mg/dL in a client with diabetes mellitus is within a normal range and does not require immediate attention when compared to the urgent situation in another choice.

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A nurse is teaching pursed-lip breathing to a client who has COPD. Which of the following instructions should the nurse include in the teaching?

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Correct Answer is C

Explanation

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