A nurse is reviewing a client's laboratory results. The client's ABGS are as follows: pH 7.6, HCO3 24 mEq/L, PaCO2 30 mm Hg, PaO2 90 mm Hg. Which of the following acid-base imbalances should the nurse identify the client is experiencing?
Metabolic alkalosis
Respiratory acidosis
Respiratory alkalosis
Metabolic acidosis
The Correct Answer is C
A) Metabolic alkalosis: Metabolic alkalosis is characterized by a high pH and elevated bicarbonate (HCO3). In this scenario, the pH is elevated at 7.6, which supports alkalosis, but the HCO3 level is normal at 24 mEq/L. The PaCO2 is slightly low, which is not typical for metabolic alkalosis, as it would usually show an elevated HCO3 with a compensatory respiratory alkalosis.
B) Respiratory acidosis: Respiratory acidosis would present with a low pH and an elevated PaCO2. In this case, the pH is high at 7.6, indicating alkalosis, and the PaCO2 is also low at 30 mm Hg, which is inconsistent with respiratory acidosis.
C) Respiratory alkalosis: Respiratory alkalosis is indicated by a high pH with a low PaCO2. Here, the pH is elevated at 7.6, and the PaCO2 is decreased at 30 mm Hg, which fits the profile of respiratory alkalosis. The normal HCO3 level suggests that the bicarbonate is not compensating, supporting a primary respiratory alkalosis.
D) Metabolic acidosis: Metabolic acidosis is characterized by a low pH and a low HCO3. In this scenario, the pH is elevated at 7.6, and the HCO3 level is normal at 24 mEq/L, which does not align with metabolic acidosis. The PaCO2 is also low, which is not typical for metabolic acidosis, as it would usually have a normal or high PaCO2.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A) Bounding peripheral pulses: Metabolic acidosis typically does not cause bounding peripheral pulses. In metabolic acidosis, vasodilation might occur, but it usually leads to weaker, not bounding, pulses due to decreased cardiac output and blood pressure.
B) Hyperreflexia: Hyperreflexia is not commonly associated with metabolic acidosis. Instead, metabolic acidosis may cause symptoms like muscle weakness or fatigue due to the effect of acid-base imbalance on neuromuscular function.
C) Cool skin: While cool skin can sometimes be associated with poor perfusion in severe cases, it is not a direct manifestation of metabolic acidosis. Metabolic acidosis more commonly affects internal physiology rather than peripheral skin temperature directly.
D) Hypotension: Hypotension is a common manifestation of metabolic acidosis. The acidosis leads to vasodilation and decreased cardiac contractility, resulting in a drop in blood pressure. This is a critical sign for the nurse to monitor as it indicates the severity of the acid-base imbalance and its effect on the cardiovascular system.
Correct Answer is C
Explanation
A) "I should make sure that most of my meals contain fried foods to maintain my calorie count": Fried foods are generally high in fat and can be difficult to digest, particularly for individuals with malabsorption syndrome. They are not recommended as a primary source of calories due to their potential to exacerbate gastrointestinal symptoms.
B) "I should change to a gluten-free diet to rest my bowel": A gluten-free diet is beneficial for individuals with celiac disease, but it is not universally required for all inflammatory bowel diseases. The decision to adopt a gluten-free diet should be based on specific medical advice rather than general guidelines for inflammatory bowel disease.
C) "I should try to limit foods containing lactose to prevent bloating and cramping": Limiting lactose-containing foods is a common recommendation for individuals with malabsorption syndrome, especially if lactose intolerance is present. Lactose can exacerbate bloating and cramping, so managing intake can help alleviate these symptoms.
D) "I should eat a high-fiber diet daily to decrease my episodes of flare-ups": High-fiber diets are not always recommended for individuals with inflammatory bowel disease, as fiber can exacerbate symptoms and contribute to flare-ups. A low-fiber or modified fiber diet may be more appropriate depending on the individual’s symptoms and disease state.
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