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Before administering a newly prescribed dose of terbinafine HCL to a client with a fungal toenail infection, which assessment finding is most important for the nurse to address?

A.

Reported history of alcoholism.

B.

Toenails appear thick and yellow.

C.

Employed as a construction worker.

D.

White blood cell count of 8,500/mm³ (8.5 x 10⁹/L).

Answer and Explanation

The Correct Answer is A

Choice A rationale

 

Reported history of alcoholism is the most important assessment finding to address before administering terbinafine HCL. Terbinafine is metabolized by the liver, and clients with a history of alcoholism may have impaired liver function, increasing the risk of hepatotoxicity. Monitoring liver function and assessing for signs of liver damage are crucial before starting treatment.

 

Choice B rationale

 

Toenails appear thick and yellow is a common symptom of fungal toenail infection, but it is not the most critical assessment finding to address before administering terbinafine HCL. The focus should be on assessing liver function.

 

Choice C rationale

 

Employed as a construction worker is not the most critical assessment finding to address before administering terbinafine HCL. While occupational exposure to fungi may be relevant, the primary concern is liver function.

 

Choice D rationale

 

White blood cell count of 8,500/mm³ (8.5 x 10⁹/L) is within the normal range and is not the most critical assessment finding to address before administering terbinafine HCL. The primary concern is liver function.


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View Related questions

Correct Answer is A

Explanation

Choice A rationale

pH 7.49, PCO₂ 45 mm Hg, HCO₃ 32 mEq/L (32 mmol/L), PO₂ 90 mm Hg indicates metabolic alkalosis. The elevated pH and HCO₃ levels are consistent with this condition.

Choice B rationale

pH 7.30, PCO₂ 20 mm Hg, HCO₃ 22 mEq/L (22 mmol/L), PO₂ 85 mm Hg indicates metabolic acidosis with respiratory compensation, not metabolic alkalosis.

Choice C rationale

pH 7.46, PCO₂ 55 mm Hg, HCO₃ 36 mEq/L (36 mmol/L), PO₂ 95 mm Hg indicates metabolic alkalosis with respiratory compensation. However, the pH is slightly lower than in Choice A, making Choice A more indicative of metabolic alkalosis.

Choice D rationale

pH 7.29, PCO₂ 35 mm Hg, HCO₃ 25 mEq/L (25 mmol/L), PO₂ 99 mm Hg indicates metabolic acidosis, not metabolic alkalosis.

Correct Answer is A

Explanation

Choice A rationale

Respiratory acidosis is characterized by elevated levels of carbon dioxide (CO2) in the blood due to impaired ventilation. This accumulation of CO2 leads to a decrease in blood pH, making it more acidic.

Choice B rationale

Hyperventilation leads to a rapid elimination of CO2, which would result in respiratory alkalosis, not acidosis. Therefore, this choice does not support the pathophysiological process of respiratory acidosis.

Choice C rationale

Blood oxygen levels stimulating the respiratory rate is a compensatory mechanism for hypoxemia but does not directly cause respiratory acidosis. This process is more related to respiratory alkalosis.

Choice D rationale

The kidneys do play a role in acid-base balance, but they primarily eliminate acids other than CO2. They do not significantly convert CO2 for elimination, making this choice incorrect.

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