A nurse is reviewing the diagnostic test results of an older adult female client who is preoperative for a knee arthroplasty. The nurse should notify the surgeon of which of the following results?
Hematocrit 40%
Creatinine 0.9 mg/dL
WBC count 20,000/mm3
Potassium 3.8 mEq/L
The Correct Answer is C
A. A hematocrit of 40% is within the normal range for females, which is typically around 37-47%. This result is not concerning and does not typically require immediate notification to the surgeon.
B. A creatinine level of 0.9 mg/dL is within the normal range for adults (normal range varies slightly among laboratories but is generally around 0.5-1.1 mg/dL). This result indicates normal kidney function and does not require immediate notification.
C. A white blood cell (WBC) count of 20,000/mm3 is elevated above the normal range, which is typically between 4,500-11,000/mm3. An elevated WBC count could indicate infection or inflammation. Given the client is preoperative, an elevated WBC count may suggest an underlying infection that needs to be addressed before proceeding with surgery. The nurse should notify the surgeon promptly so appropriate evaluation and management can be initiated.
D. A potassium level of 3.8 mEq/L is within the normal range (normal range is generally 3.5-5.0 mEq/L). This result is not concerning and does not require immediate notification to the surgeon.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["167"]
Explanation
1 kilogram is equivalent to 2.2 pounds.
The client weighs 245 lbs, which is approximately 111.36 kg (245 lbs / 2.2). The prescribed dosage is 1.5 mg per kilogram.
Therefore, the dosage per dose would be 1.5 mg/kg * 111.36 kg, which equals 167.04 mg. Rounded to the nearest whole number, the nurse should administer 167 mg per dose.
Correct Answer is A
Explanation
A. Diarrhea can lead to loss of bicarbonate from the body, resulting in metabolic acidosis. The loss of bicarbonate through gastrointestinal fluids causes an imbalance between acids and bases in the body.
B. Salicylates (such as aspirin) can cause metabolic acidosis by several mechanisms, including direct stimulation of the respiratory center in the brainstem (leading to hyperventilation and respiratory alkalosis initially) and later causing metabolic acidosis due to increased production of acids like lactic acid and ketoacids.
C. Vomiting can lead to loss of gastric acid (hydrochloric acid), which could initially lead to metabolic alkalosis due to loss of acid.
D. Thiazide diuretics can cause metabolic alkalosis rather than metabolic acidosis. They promote the loss of potassium and hydrogen ions (acid), leading to increased blood pH (alkalosis).
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