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.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is {"dropdown-group-1":"C"}
Explanation
Choice A rationale:
Target conditions are not mentioned in the sentence, and there is no context to suggest their relevance to the client's situation.
Choice B rationale:
Hyperactive reflexes are not commonly associated with a urinary tract infection or the prescribed medications.
Choice C rationale:
The client with a urinary tract infection and the medications mentioned (Furosemide and Trimethoprim/sulfamethoxazole) are at an increased risk of hypokalemia (low potassium levels) due to Furosemide's diuretic effect, fluid volume deficit (dehydration) from the infection, and hypertension (high blood pressure) as a potential side effect of Trimethoprim/sulfamethoxazole.
Choice D rationale:
Urinary retention is not expected in a client with a urinary tract infection; it is more commonly associated with urinary obstruction or other urinary conditions unrelated to an infection.
Correct Answer is B
Explanation
Choice A rationale:
Narcotics are not known to directly cause hypokalemia. Their main effects are related to pain relief and central nervous system depression.
Choice B rationale:
Thiazide diuretics can cause potassium loss in the urine, leading to hypokalemia. These diuretics work by inhibiting sodium reabsorption in the distal convoluted tubule, which can lead to potassium excretion as well.
Choice C rationale:
Corticosteroids can cause sodium and water retention but are not typically associated with significant potassium abnormalities.
Choice D rationale:
Muscle relaxers are not known to cause hypokalemia. They primarily act on the neuromuscular junction and do not directly impact potassium levels.
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