A patient's blood gases show a pH of 7.53 and bicarbonate level of 36 mEq/L. The nurse realizes that the patient is demonstrating which acid-base disorder?
Respiratory acidosis.
Metabolic alkalosis.
Respiratory alkalosis.
Metabolic acidosis.
The Correct Answer is B
Metabolic alkalosis.
Choice A rationale:
The given blood gas results show a pH of 7.53, which is alkaline (above the normal range of
7.35 to 7.45), and a high bicarbonate level of 36 mEq/L (normal range is 22 to 26 mEq/L). This combination indicates metabolic alkalosis, a condition where there is an excessive accumulation of bicarbonate in the blood, leading to increased pH.
Choice B rationale:
Metabolic alkalosis is characterized by increased blood bicarbonate levels, which can occur due to conditions like vomiting, diuretic use, or excessive ingestion of bicarbonate-containing substances. It results in symptoms such as muscle twitching, tetany, and respiratory depression.
Choice C rationale:
Respiratory alkalosis is characterized by an elevated blood pH and low carbon dioxide levels (hypocapnia). However, the bicarbonate level is not directly related to respiratory alkalosis, making this choice incorrect based on the given information.
Choice D rationale:
Metabolic acidosis is characterized by a decreased blood pH and low bicarbonate levels. The presented blood gas results show an alkaline pH and high bicarbonate, making this choice incorrect.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
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.
Correct Answer is A
Explanation
Choice A rationale:
The client with a phosphate level of 5.7 mg/dL likely has a manifestation of hypoparathyroidism. Hypoparathyroidism leads to decreased parathyroid hormone (PTH) secretion, which causes increased renal phosphate reabsorption, leading to elevated phosphate levels in the blood.
Choice B rationale:
A calcium level of 9.8 mg/dL is within the normal range (8.5-10.2 mg/dL) and does not indicate hypoparathyroidism.
Choice C rationale:
A vitamin D level of 25 ng/mL is within the normal range (30-100 ng/mL) and does not suggest hypoparathyroidism.
Choice D rationale:
A magnesium level of 1.8 mEq/L is within the normal range (1.7-2.2 mEq/L) and does not directly indicate hypoparathyroidism.
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