A 4-year-old patient is brought to the clinic because the child has not recovered from a respiratory infection. The patient is pale and lethargic. Leukemia is suspected. Which lab value, if elevated, would support the diagnosis of leukemia?
Red blood cell count.
White blood cell count.
Platelet count.
Hematocrit.
The Correct Answer is B
Choice A rationale:
The red blood cell count is not typically elevated in leukemia. Leukemia primarily affects the white blood cells and their precursors in the bone marrow.
Choice B rationale:
Leukemia involves uncontrolled proliferation of white blood cells. An elevated white blood cell count, especially with abnormal cell types, can support the diagnosis of leukemia.
Choice C rationale:
Platelet count abnormalities are common in leukemia, but an elevated platelet count is more often associated with other conditions such as essential thrombocytosis, not necessarily leukemia.
Choice D rationale:
Hematocrit measures the volume of red blood cells in the blood and is not directly indicative of leukemia. Leukemia primarily affects white blood cells and does not significantly impact hematocrit levels.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","C"]
Explanation
Choice A rationale:
An adult's immune system does not prevent infection with Rotavirus. Adults can also be infected, although the severity of illness tends to be milder than in infants and young children.
Choice B rationale:
The highest rates of Rotavirus illness do occur in infants and young children. This is because young age groups have a lower level of immunity and are more susceptible to severe infections.
Choice C rationale:
The best treatment to prevent Rotavirus transmission is appropriate hand washing. Rotavirus is highly contagious and can be transmitted through contaminated hands, surfaces, and objects.
Choice D rationale:
Epidemics of Rotavirus do not specifically occur in the months from November to April. Rotavirus infections can occur throughout the year, with seasonal variation.
Correct Answer is D
Explanation
Choice A rationale:
Maintaining supplemental oxygen is not directly relevant to the management of hemarthrosis in a patient with hemophilia. Hemarthrosis is bleeding into a joint due to impaired clotting factors in hemophilia, and oxygen supplementation is not a primary intervention.
Choice B rationale:
Elevating the head of the bed 45 degrees is not the most appropriate action for hemarthrosis. Elevation would not address the joint bleeding, and it could potentially cause discomfort to the patient.
Choice C rationale:
Providing passive range-of-motion exercises to all extremities is contraindicated in this scenario. Active or passive range-of-motion exercises could exacerbate bleeding and further damage the affected joint in a patient with hemarthrosis.
Choice D rationale:
Immobilizing the affected joint is the correct nursing action. Immobilization helps to prevent further bleeding and joint damage. By limiting movement, the risk of exacerbating the bleeding is minimized, promoting healing and reducing pain.
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