A nurse is caring for a client whose arterial blood gas results show the following results:. pH: 7.2. PaCO2: 50 mm Hg. HCO3: 24 mEq/L. The nurse should identify the client is experiencing which of the following acid-base conditions?
Respiratory acidosis.
Metabolic alkalosis.
Metabolic acidosis.
Respiratory alkalosis.
The Correct Answer is A
Choice A rationale:
The client's arterial blood gas (ABG) results indicate a low pH (acidemia) and high PaCO2, which is characteristic of respiratory acidosis. Respiratory acidosis occurs when there is inadequate removal of carbon dioxide (CO2) from the body, leading to an accumulation of CO2 and a decrease in pH. In this case, the high PaCO2 (50 mm Hg) indicates that the client is retaining carbon dioxide, likely due to impaired ventilation. The normal pH range is 7.35 to 7.45, and the normal PaCO2 range is 35 to 45 mm Hg. These ABG values reflect an acid-base imbalance in the respiratory system, specifically, respiratory acidosis.
Choice B rationale:
Metabolic alkalosis is characterized by an elevated pH and an increase in bicarbonate (HCO3) levels. This is not the condition described in the client's ABG results, as the pH is low (acidemic) and HCO3 levels are within the normal range (24 mEq/L).
Choice C rationale:
Metabolic acidosis is characterized by a low pH and a decreased HCO3 level. The client's ABG results do not align with metabolic acidosis since the pH is low (acidemic) and the HCO3 level is within the normal range (24 mEq/L).
Choice D rationale:
Respiratory alkalosis is characterized by a high pH and low PaCO2. The client's ABG results do not match this condition as the pH is low (acidemic) and the PaCO2 is high (50 mm Hg), indicating respiratory acidosis. Therefore, choice A, respiratory acidosis, is the correct interpretation of the ABG results.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
Bananas are a good source of potassium, and the client's serum potassium level is low (3.1 mEq/L). Including potassium-rich foods like bananas in the diet can help raise the potassium level and prevent hypokalemia, which is a potential side effect of furosemide (a diuretic).
Choice B rationale:
Cheddar cheese is not a suitable choice for a client with low potassium levels. It is not a significant source of potassium and should not be the primary recommendation for addressing hypokalemia.
Choice C rationale:
Cabbage is not a good choice for increasing potassium intake. While it has some potassium, other fruits and vegetables like bananas are much richer sources of this essential electrolyte.
Choice D rationale:
White rice is not a high-potassium food and should not be the first choice for a client with low potassium levels.
Correct Answer is A
Explanation
The correct answer is A. Captopril.
Choice A: Captopril Captopril is an angiotensin-converting enzyme (ACE) inhibitor used to treat conditions like high blood pressure and heart failure. One of the common side effects of ACE inhibitors is a persistent, non-productive cough. This cough occurs due to the accumulation of bradykinin, a potent peptide that can induce coughing.
Choice B: Metoprolol Metoprolol is a beta-blocker used to treat high blood pressure and heart failure. Common side effects include dizziness, slow or irregular heartbeat, and unusual tiredness or weakness. However, it is not typically associated with a non-productive cough.
Choice C: Furosemide Furosemide is a loop diuretic used to treat fluid retention (edema) in people with congestive heart failure, liver disease, or a kidney disorder. While it can cause side effects like diarrhea, constipation, and loss of appetite, a non-productive cough is not a typical side effect of Furosemide.
Choice D: Digoxin Digoxin is used to treat heart failure and irregular heartbeat. Common side effects include dizziness, slow or irregular heartbeat, and unusual tiredness or weakness. However, a non-productive cough is not a typical side effect of Digoxin.
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