A nurse is teaching a client who has COPD about purse-lipped breathing. Which of the following statements should the nurse make?
"You should be flat on your back when you perform purse-lipped breathing"
"You should inhale through your nose and exhale through your mouth during purse-lipped breathing."
Your inspiration should be longer than expiration during purse-lipped breathing"
"You should cough forcefully during exhalation when you are purse-lipped breathing"
The Correct Answer is B
A. Pursed-lip breathing does not require a specific body position, but it is often more comfortable and effective when the patient is in a semi-Fowler’s position (elevated head of the bed) or sitting upright. Being flat on the back might actually make breathing more difficult for some patients with COPD.
B. The technique involves inhaling slowly through the nose and exhaling through pursed lips, which creates a slight resistance during expiration. This helps to keep the airways open longer, reduce airway collapse, and improve oxygen exchange. Proper inhalation and exhalation technique are key components of effective pursed-lip breathing.
C. In pursed-lip breathing, expiration should be longer than inspiration. The recommended pattern is to inhale slowly through the nose for about 2 counts and then exhale slowly through pursed lips for about 4 counts. The extended expiration phase helps to remove trapped air from the lungs and improves overall ventilation.
D. Coughing forcefully is not a part of pursed-lip breathing. Pursed-lip breathing focuses on controlled breathing to improve airflow and ease breathing. Coughing can be done separately if needed, but it is not a component of the pursed-lip breathing technique.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Petroleum-based products should not be used in conjunction with oxygen therapy. They are flammable and can pose a fire hazard when used near oxygen. Instead, use water-based moisturizers to prevent dryness of the lips and skin.
B. Wool and other synthetic fabrics can generate static electricity, which is a fire hazard when using oxygen
therapy. It’s safer to use cotton blankets, as they are less likely to cause static buildup.
C. Oxygen tanks should be stored upright to prevent them from falling over and to ensure the regulator and valves are properly aligned. Storing tanks upright helps maintain stability and prevents accidental damage to the equipment.
D. While the recommendation to keep oxygen tanks away from electrical sources is important, the distance may vary based on specific guidelines. It is generally advised to keep oxygen tanks at least 5-10 feet away from electrical sources and heat sources to avoid any risk of ignition or fire.
Correct Answer is B
Explanation
A. 0.9% sodium chloride, also known as Normal Saline, is an isotonic solution. It has the same concentration of solutes as blood plasma, which means it does not change the cell's fluid volume but rather maintains it. It is not considered hypotonic.
B. 0.45% sodium chloride, commonly known as Half Normal Saline, is a hypotonic solution. It has a lower concentration of sodium chloride compared to the normal saline and is used to provide hydration and to help correct electrolyte imbalances by allowing water to move into the cells.
C. Dextrose 5% in Lactated Ringer's is not a hypotonic solution. It is actually a type of hypertonic solution. Initially, dextrose 5% is isotonic, but once the dextrose is metabolized, the solution becomes hypotonic due to the electrolyte content of Lactated Ringer’s. However, the classification is generally based on the solution before metabolism, and it is not commonly used as a hypotonic solution.
D. Lactated Ringer's solution is an isotonic solution. It contains electrolytes in concentrations similar to those found in the body's plasma, and it is used to restore fluids and electrolytes. It does not have a hypotonic effect on cells.
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