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 B
Explanation
The nurse should perform neurovascular checks of the affected extremity every 2 hours to monitor for any signs of compartment syndrome or impaired circulation. It is important to assess for the five Ps: pain, pulse, pallor, paresthesia, and paralysis. Using a hair dryer to relieve itching can cause burns and is not a recommended intervention. Positioning the fractured arm below the level of the client's heart can increase swelling and exacerbate pain. Immobilizing the client's fingers using a hand splint is not indicated unless there is a finger fracture or injury.
Choice A (Use a hair dryer to blow hot air into the cast to relieve itching) is not an answer because it can cause burns and is not a recommended intervention.
Choice C (Position the fractured arm below the level of the client's heart) is not an answer because it can increase swelling and exacerbate pain.
Choice D (Immobilize the client's fingers using a hand splint) is not an answer because it is not indicated unless there is a finger fracture or injury.
Correct Answer is A
Explanation
Elevate the head of the client's bed for 1 hr after the feeding. This is because elevating the head of the client's bed to at least 30 degrees can help prevent aspiration and gastric reflux.
Choice B is incorrect because administering the feeding solution at a cold temperature can cause discomfort and diarrhea.
Choice C is incorrect because rotating the jejunostomy tube once per day can cause irritation and trauma to the stoma site.
Choice D is incorrect because flushing the tube with 90 mL of sterile water before and after the feeding is not necessary as long as the tube is adequately flushed before and after each feeding.
The explanation for why the other choices are not answered: B – Administering the feeding solution at a cold temperature can cause discomfort and diarrhea, so it should not be done. C – Rotating the jejunostomy tube once per day can cause irritation and trauma to the stoma site, so this is not the correct action. D – Flushing the tube with 90 mL of sterile water before and after the feeding is unnecessary to do as long as the tube is adequately flushed before and after each feeding. Thus, this is not the correct answer.
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