Which initial laboratory data does the nurse anticipate for a child who is admitted to the hospital with a cyanotic heart defect?
1. A low platelet count
2. A high white blood cell count
3. A high hemoglobin
4. A low hematocrit
3
Explanation:
1. The platelets would be normal.
2. The white blood cell count would not be high unless an infection was present.
3. The child's bone marrow responds to chronic hypoxemia by producing more red blood cells to increase the amount of hemoglobin available to carry oxygen to the tissues. This occurs in cases of cyanotic heart defects.
4. The hematocrit would not be low.
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