The nurse is caring for a client with a history of hypertension. Which lifestyle modification should the nurse emphasize?

Reduce dietary sodium intake

Increase saturated fat consumption

Limit physical activity

Encourage smoking cessation only if symptomatic

Answer and Explanation

The Correct Answer is A

Choice A reason: Reducing dietary sodium lowers blood pressure in hypertension by decreasing vascular fluid volume and vasoconstriction. Sodium restriction (e.g., <2.3 g/day) reduces cardiac workload, preventing complications like heart failure, making it the priority lifestyle modification for effective blood pressure control.

Choice B reason: Increasing saturated fat consumption worsens hypertension by promoting atherosclerosis and vascular stiffness. Sodium reduction is critical, as it directly lowers blood volume and pressure, reducing cardiovascular risk, making it the priority over dietary fat adjustments in hypertension management.

Choice C reason: Limiting physical activity is incorrect, as exercise lowers blood pressure by improving vascular elasticity. Sodium reduction is the priority, as it directly reduces fluid retention and vasoconstriction, providing immediate blood pressure control, making it essential for hypertension management.

Choice D reason: Smoking cessation is beneficial but not the primary focus unless active smoking is confirmed. Sodium reduction directly lowers blood pressure by decreasing fluid volume, making it the priority lifestyle change, as it addresses hypertension’s core mechanism more effectively.

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Correct Answer is A

Explanation

Choice A reason: Furosemide, a loop diuretic, promotes urine output by inhibiting sodium reabsorption in the kidneys, reducing fluid overload in heart failure. Increased urine output indicates effective diuresis, alleviating pulmonary and peripheral edema, making it the primary sign of therapeutic efficacy.

Choice B reason: Elevated blood pressure is not an expected effect of furosemide, which reduces preload and blood volume, often lowering pressure. Effective diuresis is shown by increased urine output, as this directly reflects fluid removal, critical for heart failure management.

Choice C reason: Increased heart rate is not a direct indicator of furosemide efficacy. Diuresis reduces cardiac workload, potentially stabilizing heart rate, but urine output is the primary measure, as it confirms fluid excretion, the medication’s main action in heart failure.

Choice D reason: Weight gain indicates fluid retention, the opposite of furosemide’s goal. Effective diuresis causes weight loss due to fluid excretion. Increased urine output is the key sign, as it directly measures the diuretic’s action in reducing heart failure-related fluid overload.

A. Hemoccult test on sputum collected from hemoptysis B. Chest x-ray or computerized tomography scan C. Sputum culture positive for Mycobacterium tuberculosis D. Positive purified protein derivative skin test

Correct Answer is C

Explanation

Choice A reason: Hemoccult tests detect blood in sputum, indicating hemoptysis, a TB symptom, but do not confirm Mycobacterium tuberculosis infection. Sputum culture is required for definitive diagnosis, as hemoccult only identifies bleeding, which is nonspecific and can occur in other respiratory conditions.

Choice B reason: Chest x-ray or CT scans show pulmonary abnormalities like cavitary lesions in TB but are not confirmatory. Radiographic findings suggest TB but require microbiological confirmation via sputum culture, as similar patterns occur in other lung diseases, making imaging supportive but not diagnostic.

Choice C reason: Sputum culture positive for Mycobacterium tuberculosis is the gold standard for TB diagnosis. It directly identifies the pathogen, confirming active infection. Other tests like skin tests or imaging are suggestive but not definitive, as they cannot distinguish active TB from latent or other conditions.

Choice D reason: A positive PPD skin test indicates TB exposure or latent infection but does not confirm active disease. False positives occur with prior BCG vaccination or nontuberculous mycobacteria. Sputum culture is needed to verify active TB, making the skin test less definitive.

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The nurse is caring for a client with a history of hypertension. Which lifestyle modification should the nurse emphasize?

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Naxlex Comprehensive Predictor Exams

A client with a history of heart failure is prescribed furosemide. Which assessment finding indicates the medication is effective?

Correct Answer is A

Explanation

The nurse is admitting a client with possible tuberculosis (TB). The client is placed in a private room with airborne precautions pending diagnostic test results. Which diagnostic test should the nurse review to confirm the diagnosis of TB?

Correct Answer is C

Explanation

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