A nurse is reviewing the diagnostic test results of a female client who is about to undergo knee arthroplasty. Which of the following data collection findings should the nurse identify as the priority?

Creatinine 0.9 mg/dL

WBC count 20,000/mm3

Potassium 3.8 mEq/L

Hematocrit 40%

Answer and Explanation

The Correct Answer is B

a. Creatinine 0.9 mg/dL: This creatinine level is within the normal range and is not an immediate priority for knee arthroplasty.

b. WBC count 20,000/mm3: An elevated white blood cell count suggests the presence of

infection or inflammation. In the context of knee arthroplasty, infection is a significant concern and requires immediate attention to prevent complications.

c. Potassium 3.8 mEq/L: This potassium level is within the normal range and is not an immediate priority for knee arthroplasty.

d. Hematocrit 40%: This hematocrit level is within the normal range and is not an immediate priority for knee arthroplasty. The elevated WBC count takes precedence as it suggests a

potential infectious process.

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Correct Answer is C

Explanation

a. Magnesium 1.9 mg: This magnesium level is within the expected reference range (1.3-2.1 mEq/L).

b. Chloride 99 mEq/L: This chloride level is within the expected reference range (98-106 mEq/L).

c. Sodium 126 mEq/L: A sodium level of 126 mEq/L is significantly below the normal range (135-145 mEq/L), indicating hyponatremia, which can have serious consequences and requires prompt attention.

d. Potassium 3.6 mEq/L: This potassium level is within the expected reference range (3.5-5.0 mEq/L).

A. Rest in a supine position. B. Breathe in through her nose and out through pursed lips. C. Limit fluid intake throughout the day. D. Consume a low-protein diet.

Correct Answer is B

Explanation

a. Rest in a supine position: Resting in a supine position may compromise lung expansion, and an upright position is often recommended for clients with emphysema to improve ventilation.

b. Breathe in through her nose and out through pursed lips: This technique helps maintain

positive airway pressure, preventing premature airway collapse, and can improve gas exchange in clients with emphysema.

c. Limit fluid intake throughout the day: Adequate hydration is important for maintaining

respiratory secretions in a liquefied state and is generally encouraged for clients with respiratory conditions.

d. Consume a low-protein diet: A low-protein diet is not specifically indicated for improving gas exchange in clients with emphysema. Nutrition recommendations may focus on a well-balanced diet to support overall health.

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A nurse is reviewing the diagnostic test results of a female client who is about to undergo knee arthroplasty. Which of the following data collection findings should the nurse identify as the priority?

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