A nurse is caring for a client who has pneumonia with dyspnea. The client's ABG results are pH 7.30, PaCO2 50 mm Hg, HCO3 26 mEq/L. The nurse should recognize that the client has which of the following acid-base imbalances?
Metabolic acidosis
Respiratory acidosis
Respiratory alkalosis
Metabolic alkalosis
The Correct Answer is B
This ABG result indicates that the client has an excess of carbon dioxide (CO2) due to hypoventilation.
A. "Metabolic acidosis" is an incorrect answer because the pH is low and the HCO3 is within normal range.
C. "Respiratory alkalosis" is an incorrect answer because the pH is low and the PaCO2 is elevated.
D. "Metabolic alkalosis" is an incorrect answer because the HCO3 is within normal range, and the pH is low.
Explanation: The ABG result shows a low pH, elevated PaCO2, and normal HCO3, indicating respiratory acidosis. This condition can be caused by conditions that affect breathing, such as pneumonia, asthma, or chronic obstructive pulmonary disease (COPD).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
The correct answer is choice C. Asthma.
Choice A rationale:
Glaucoma is not a contraindication for propranolol. Beta-blockers like propranolol can actually be used to manage glaucoma by reducing intraocular pressure.
Choice B rationale:
Irritable bowel syndrome (IBS) is not a contraindication for propranolol. There is no direct interaction between propranolol and IBS that would prevent its use.
Choice C rationale:
Asthma is a contraindication for propranolol. Propranolol is a non-selective beta-blocker, which means it can block beta-2 receptors in the lungs, leading to bronchoconstriction and potentially severe asthma exacerbations.
Choice D rationale:
Migraine headaches are not a contraindication for propranolol. In fact, propranolol is often prescribed as a preventive treatment for migraines.
Correct Answer is C
Explanation
The client's right arm should be immobilized to prevent dislodgment of the central venous catheter. The Trendelenburg position is not indicated in this situation and may increase the risk of complications. Active range of motion exercises of the right arm and frequent coughing can also increase the risk of catheter dislodgment.
Choice A, placing the client in the Trendelenburg position, is not the correct answer because it is not indicated in this situation and may increase the risk of complications.
Choice B, encouraging active range of motion exercises of the right arm, is not the correct answer because it can increase the risk of catheter dislodgment.
Choice D, instructing the client to cough frequently, is not the correct answer because it can increase the risk of catheter dislodgment.
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