The nurse is caring for a patient in sickle cell crisis. What is the rationale for providing warm compresses and blankets for this patient?
Heat relaxes the muscles and distracts the patient from the pain.
Sickle cell crisis pain can be exacerbated with shivering.
Heat promotes proper formation of red blood cells (RBCs) and prevents sickling.
Heat increases circulation by preventing vasoconstriction.
The Correct Answer is D
A. Heat relaxes the muscles and distracts the patient from the pain. While warmth can provide comfort, the main goal is to improve circulation rather than distraction.
B. Sickle cell crisis pain can be exacerbated with shivering. Although shivering may be uncomfortable, it is not the primary reason for using heat during a sickle cell crisis.
C. Heat promotes proper formation of red blood cells (RBCs) and prevents sickling. Heat does not affect RBC formation or prevent sickling. The condition of sickling is due to genetic factors, not temperature.
D. Heat increases circulation by preventing vasoconstriction. In sickle cell crisis, warmth helps prevent vasoconstriction, which can reduce blood flow to areas already compromised by sickled cells. Preventing vasoconstriction may help alleviate pain and improve circulation.
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Correct Answer is D
Explanation
A. Have the child eat a high-protein diet. There is no specific requirement for a high-protein diet to manage sickle cell disease. Hydration is more critical in crisis prevention.
B. Monitor the child's temperature twice per day. While monitoring for infection is essential, this is not the most important discharge instruction to prevent crises.
C. Restrict outdoor play activity. While strenuous exercise should be avoided, activity restriction is unnecessary as long as the child stays hydrated and avoids extreme conditions.
D. Encourage the child to increase his fluid intake. Increased fluid intake helps prevent sickling by reducing blood viscosity, which is essential in preventing future crises.
Correct Answer is A
Explanation
A. "Aplastic anemia results from decreased bone marrow production of RBCs." Aplastic anemia is characterized by the failure of bone marrow to produce adequate red blood cells (RBCs), white blood cells, and platelets. This results in pancytopenia, which increases the risk of infections, anemia, and bleeding.
B. "Aplastic anemia is directly related to impaired liver function." Aplastic anemia is not related to liver function; it originates from the bone marrow’s inability to produce sufficient blood cells.
C. "Aplastic anemia is associated with the decreased intake of iron." Aplastic anemia is not caused by iron deficiency; it is primarily due to bone marrow failure. Iron deficiency anemia, on the other hand, results from a lack of iron intake or absorption.
D. "Aplastic anemia results in an increased rate of RBC destruction." Increased RBC destruction is characteristic of hemolytic anemia, not aplastic anemia.