A nurse is assessing a client who has COPD. Which of the following findings should the nurse expect?
Weight gain
Decrease in anteroposterior diameter of the chest
HCO3 24 mEq/L
pH 7.31
The Correct Answer is D
pH 7.31
Rationale:
A - This is incorrect because weight gain is not expected in clients who have COPD, as they often have difficulty eating and digesting food due to dyspnea and fatigue.
B - This is incorrect because a decrease in anteroposterior diameter of the chest is not typical of COPD, as the condition causes hyperinflation and air trapping in the lungs, leading to an increase in chest size and a barrel-shaped appearance.
C - This is incorrect because HCO3 24 mEq/L is within the normal range for blood bicarbonate levels, which are 22 to 26 mEq/L. Clients who have COPD often have chronic respiratory acidosis, which stimulates the kidneys to retain bicarbonate and increase its levels in the blood to compensate for the low pH.
D - This is correct because pH 7.31 indicates acidosis, which is common in clients who have COPD due to impaired gas exchange and accumulation of carbon dioxide in the blood.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Respiratory acidosis.
Rationale:
- A. Incorrect. The client does not have respiratory alkalosis because respiratory alkalosis is characterized by a low PaCO2 (less than 35 mm Hg) and a high pH (greater than 7.45).
- B. Incorrect. The client does not have metabolic alkalosis because metabolic alkalosis is characterized by a high HCO3 (greater than 26 mEq/L) and a high pH (greater than 7.45). - C. Correct. The client has respiratory acidosis because respiratory acidosis is characterized by a high PaCO2 (greater than 45 mm Hg) and a low pH (less than 7.35).
- D. Incorrect. The client does not have metabolic acidosis because metabolic acidosis is characterized by a low HCO3 (less than 22 mEq/L) and a low pH (less than 7.35).
Correct Answer is B
Explanation
Aspirate contents from the tube and verify the pH level.
- A. This is an incorrect action. Inserting air in the tube and listening for gurgling sounds in the epigastric area is not a reliable method to confirm NG tube placement, as it can produce falsepositive results due to air entering the stomach or intestines.
- B. This is a correct action. Aspirating contents from the tube and verifying the pH level is a valid method to confirm NG tube placement, as gastric contents typically have a pH of less than 5.5, while intestinal or respiratory contents have a higher pH.
- C. This is an incorrect action. Reviewing the medical record for previous x-ray verification of placement is not sufficient to confirm NG tube placement, as the tube can migrate or become dislodged after insertion. X-ray verification should be done initially and whenever there is doubt about the tube's position.
- D. This is an incorrect action. Auscultating the lungs for adventitious breath sounds is not a specific method to confirm NG tube placement, as it can indicate other conditions such as pneumonia or pulmonary edema. It can also miss signs of respiratory complications due to NG tube misplacement, such as pneumothorax or bronchial obstruction.
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