A nurse is reviewing the laboratory results of a client who is taking a loop diuretic and notes the client's potassium level is 3.0 mEq/L. Which of the following physiological responses should the nurse expect related to the client's hypokalemia?
Hypoglycemia.
Cardiac dysrhythmias.
Increased appetite.
Hyperreflexia.
The Correct Answer is B
Choice A rationale:
Hypoglycemia Hypokalemia (low potassium levels) is not typically associated with hypoglycemia (low blood sugar). Hypokalemia primarily affects the function of muscles and nerves, and it does not directly influence blood glucose levels.
Choice B rationale:
Cardiac dysrhythmias Hypokalemia can lead to cardiac dysrhythmias. Potassium plays a crucial role in maintaining the electrical activity of the heart, and low potassium levels can disrupt normal cardiac rhythms, potentially leading to life-threatening arrhythmias. Cardiac dysrhythmias are a well-recognized complication of severe hypokalemia, making this choice the correct one.
Choice C rationale:
Increased appetite Hypokalemia is not associated with an increased appetite. In fact, it can lead to gastrointestinal disturbances, such as nausea, vomiting, and abdominal pain, which may decrease appetite. The primary manifestations of hypokalemia are related to muscle weakness and cardiac abnormalities.
Choice D rationale:
Hyperreflexia Hyperreflexia (excessive reflex responses) is not a typical manifestation of hypokalemia. Hypokalemia is more commonly associated with muscle weakness, cramps, and cardiac disturbances. Hyperreflexia is often seen in conditions of excessive calcium levels (hypercalcemia) or neurological disorders, not hypokalemia.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
The nurse should identify that the client needs liver function tests while taking pyrazinamide. Pyrazinamide is one of the drugs used to treat tuberculosis, and it is known to potentially cause hepatotoxicity (liver damage). Regular monitoring of liver function tests, including liver enzymes like ALT and AST, is essential to detect any liver-related issues early and ensure the client's safety during the medication therapy.
Choice B rationale:
Thyroid function studies are not typically necessary while a client is taking pyrazinamide. Pyrazinamide is not known to have a direct effect on thyroid function.
Choice C rationale:
Blood glucose levels do not need to be monitored specifically due to pyrazinamide therapy. Although some antituberculosis drugs may affect blood sugar levels, pyrazinamide is not a common culprit for such side effects.
Choice D rationale:
Gallbladder studies are not typically indicated while taking pyrazinamide. Pyrazinamide is not known to cause specific issues related to the gallbladder. Monitoring liver function is more critical due to its potential hepatotoxicity.
Correct Answer is C
Explanation
Choice A rationale:
Hypertension is not typically associated with low calcium levels. Hypertension is more commonly linked to issues with blood pressure regulation and not calcium levels.
Choice B rationale:
Diaphoresis (excessive sweating) is not a direct symptom of low calcium levels. Low calcium can lead to muscle cramps and tetany, but not sweating.
Choice C rationale:
Muscle tetany is a common manifestation of low calcium levels (hypocalcemia). It results from increased neuromuscular excitability, causing muscle spasms and contractions. A calcium level of 7 mg/dL is below the normal range, and this client is at risk for muscle tetany.
Choice D rationale:
Increased thirst is not a typical symptom of low calcium levels. Symptoms of hypocalcemia are primarily related to neuromuscular and cardiovascular changes, such as muscle tetany and cardiac arrhythmias.
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