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A 16-month-old infant is being prepared for tetralogy of Fallot repair. In the nursing assessment, which lab value should elicit further assessment and requires notification of physician?
A. pH 7.39
B. White blood cell (WBC) count 10,000 WBCs/mm3
C. Hematocrit 60%
D. Bleeding time of 4 minutes
Correct Answer: C
Explanation/Reference:
Explanation:
(A) Normal pH of arterial blood gases for an infant is 7.357.45. (B) Normal white blood cell count in an infant is 6,00017,500 WBCs/mm3. (C) Normal hematocrit in infant is 28%42%. A 60% hematocrit may indicate polycythemia, a common complication of cyanotic heart disease. (D) Normal bleeding time is 27 minutes.
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