A nurse is reviewing the ABGs of a client who has pneumonia. The nurse should identify which of the following findings is an indication of respiratory acidosis.
PaO2 86 mm Hg.
pH 7.4.
HCO3 16 mEq/L.
PaCO2 58 mm Hg.
The Correct Answer is D
Choice A rationale:
A PaO2 value of 86 mm Hg is within the normal range (80-100 mm Hg) and does not indicate respiratory acidosis. PaO2 measures the partial pressure of oxygen in arterial blood.
Choice B rationale:
A pH of 7.4 is within the normal range (7.35-7.45) and does not indicate respiratory acidosis. The pH reflects the acidity or alkalinity of the blood.
Choice C rationale:
An HCO3 (bicarbonate) level of 16 mEq/L is within the normal range (22-28 mEq/L) and does not indicate respiratory acidosis. HCO3 is a measure of the metabolic component of the body's acid-base balance.
Choice D rationale:
This is the correct choice. A PaCO2 value of 58 mm Hg is elevated and indicates respiratory acidosis. PaCO2 measures the partial pressure of carbon dioxide in arterial blood, and an elevated value suggests the presence of excess carbon dioxide, leading to acidosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale:
Administering morphine intermittent IV bolus every 2 hours is not a suitable intervention for reducing the risk of atelectasis. While pain management is important postoperatively, morphine can depress respiratory function and increase the risk of atelectasis.
Choice B rationale:
Turning the client from side to side every 4 hours is important for preventing pressure ulcers and promoting comfort, but it is not a specific intervention for reducing the risk of atelectasis.
Choice C rationale:
Providing nasotracheal suctioning for 15 to 20 seconds at a time is not a preventive measure for atelectasis. Suctioning may be necessary for airway clearance in certain situations, but it does not address the root cause of atelectasis.
Choice D rationale:
This is the correct choice. Instructing the client to hold the inhaled breath for 2 to 5 seconds with incentive spirometer use is an effective intervention to reduce the risk of atelectasis. Incentive spirometry helps to expand the lungs and improve ventilation, preventing atelectasis after surgery.
Correct Answer is A
Explanation
Choice A rationale:
Properly cutting the opening on the skin barrier wafer to fit over the stoma is crucial to prevent any irritation or damage to the surrounding skin. A well-fitted wafer creates a seal around the stoma, reducing the risk of stool coming into contact with the skin, which can cause excoriation.
Choice B rationale:
Emptying the bag when it is three-fourths full of stool is unrelated to the education on colostomy care. This information was provided in the previous question () and is not relevant to colostomy care education.
Choice C rationale:
The color of the stoma should not be slightly purple. A healthy stoma should be pink or red, indicating a good blood supply. A purple or dark-colored stoma could indicate inadequate blood flow, which is a concern and requires immediate medical attention.
Choice D rationale:
Cleansing the peristomal skin with moisturizing soap and water is not the recommended approach. The nurse should use plain water or mild, non-moisturizing soap to clean the peristomal skin, as moisturizing soap may leave a residue that affects the adhesion of the skin barrier wafer.
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