A nurse is caring for a client whose arterial blood gas results show a pH of 7.3 and a Paco2 of 50 mm Hg. The nurse should identify that the client is experiencing which of the following acid-base imbalances?
Respiratory acidosis.
Metabolic acidosis.
Metabolic alkalosis.
Respiratory alkalosis.
The Correct Answer is A
Choice A rationale:
The arterial blood gas results show a low pH (acidosis) and an elevated Paco2 (partial pressure of carbon dioxide), which indicates respiratory acidosis. This condition occurs when there is inadequate removal of carbon dioxide through ventilation, leading to an accumulation of carbonic acid in the blood and a decrease in pH.
Choice B rationale:
Metabolic acidosis would present with a low pH and a low bicarbonate (HCO3-) level, not an elevated Paco2.
Choice C rationale:
Metabolic alkalosis would present with a high pH and an elevated bicarbonate (HCO3-) level, not an elevated Paco2.
Choice D rationale:
Respiratory alkalosis would present with a high pH and a decreased Paco2, not an elevated Paco2 as seen in this case.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","D"]
Explanation
The correct answer is choices A, B, and D. Here are the rationales for each choice:
Choice A rationale:
Sweet potatoes are an excellent source of potassium. One medium sweet potato contains about 542 mg of potassium, making it a great option for a high-potassium diet.
Choice B rationale:
Bananas are well-known for their high potassium content. A medium banana provides approximately 451 mg of potassium, which is beneficial for maintaining proper muscle and nerve function.
Choice C rationale:
Grapes are not particularly high in potassium compared to other fruits. They contain some potassium, but not enough to be considered a significant source for a high-potassium diet.
Choice D rationale:
Watermelon is a good source of potassium. Two wedges of watermelon contain about 640 mg of potassium, making it a suitable choice for increasing potassium intake.
Correct Answer is A
Explanation
Choice A rationale:
Hypophosphatemia is a condition characterized by low levels of phosphate in the blood, which can be caused by various factors, including malnutrition. In this case, the patient has a history of stomach ulcers, which might have contributed to poor nutrient absorption. The nurse should request a dietitian consult to ensure the patient receives an appropriate diet rich in phosphorus, which is essential for cellular function, bone health, and energy metabolism.
Choice B rationale:
Providing aluminum hydroxide antacids as prescribed is not the appropriate intervention for hypophosphatemia. Aluminum hydroxide antacids can bind to phosphate in the gastrointestinal tract, reducing its absorption and potentially worsening the patient's already low phosphate levels.
Choice C rationale:
Instructing the patient to avoid poultry, peanuts, and seeds is not suitable for this situation. These foods are good sources of phosphorus, and avoiding them would further deplete the patient's already low phosphate levels.
Choice D rationale:
Instructing the patient to avoid the intake of sodium phosphate is not necessary for hypophosphatemia. While sodium phosphate preparations are used as laxatives, there is no indication that the patient is taking them, and they are not relevant to the management of hypophosphatemia.
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