A nurse is reviewing the ABG results of a client who has COPD. The results include a pH of 7.3 (7.35 to 7.45), PaO2 56 mm Hg (80 to 100 mm Hg), PaCO2 54 mm Hg (35 to 45 mm Hg), HCO3- 26 mEq/L (21 to 28 mEq/L), and SaO2 87%. Which of the following is the correct interpretation of these values?
Compensated metabolic acidosis
Compensated respiratory acidosis
Uncompensated respiratory acidosis
Uncompensated metabolic acidosis
The Correct Answer is C
Rationale:
A. Compensated metabolic acidosis would show a normal pH with a decrease in HCO3- and a decrease in PaCO2.
B. Compensated respiratory acidosis would show a normal pH with an elevated PaCO2 and a compensatory increase in HCO3-.
C. The low pH indicates acidosis, and the elevated PaCO2 suggests that it is respiratory in origin, with the HCO3- remaining normal, indicating no compensation has occurred yet.
D. Uncompensated metabolic acidosis would present with a low pH, low HCO3-, and normal PaCO2.
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Correct Answer is B
Explanation
Rationale:
A. Attaching the NG tube to low intermittent suction is not recommended during gastric lavage, as suctioning can remove the lavage solution before it has a chance to work effectively.
B. Instilling the lavage solution in volumes of 500 mL at a time is correct as it allows for effective cleansing of the stomach and can help to clear out any blood or debris present.
C. Chilled lavage solution should not be used; it is recommended to use room temperature or warmed solution to avoid discomfort and potential complications such as cramping.
D. While 0.9% sodium chloride is isotonic and can be used for irrigation, it is not typically the solution used for gastric lavage; water or a specific lavage solution is more appropriate.
Correct Answer is B
Explanation
Rationale:
A. Offering flavored gelatin can provide some hydration, but it does not provide sufficient electrolytes necessary for rehydration in gastroenteritis.
B. Initiating oral rehydration therapy for the toddler is essential in treating dehydration caused by infectious gastroenteritis. Oral rehydration solutions contain the right balance of electrolytes and fluids to replenish losses.
C. While chicken broth may provide some fluid and salt, it is not as effective as a specific oral rehydration solution tailored for children with gastroenteritis.
D. The BRAT diet (bananas, rice, applesauce, and toast) is no longer recommended as the primary diet for children with gastroenteritis, as it does not provide adequate nutrition or electrolytes.