A client has developed thrombocytopenia following chemotherapy.
What is the likely cause of thrombocytopenia in this patient?
"Increased platelet production due to chemotherapy.”
"Immune-mediated platelet destruction caused by chemotherapy.”
"Thrombocytopenia in this case is unrelated to chemotherapy.”
"Thrombocytopenia results from the inhibition of platelet aggregation by chemotherapy.”
The Correct Answer is B
Choice A rationale:
"Increased platelet production due to chemotherapy." Rationale: This statement is not accurate.
Chemotherapy often suppresses bone marrow function, leading to a decrease in platelet production, not an increase.
Thrombocytopenia is a common side effect of chemotherapy due to reduced platelet production.
Choice B rationale:
"Immune-mediated platelet destruction caused by chemotherapy." Rationale: This statement is correct.
Thrombocytopenia in patients undergoing chemotherapy is often due to immune-mediated platelet destruction.
Chemotherapy can trigger an autoimmune response, leading to the destruction of platelets by the immune system.
Choice C rationale:
"Thrombocytopenia in this case is unrelated to chemotherapy." Rationale: This statement is unlikely to be true.
Thrombocytopenia occurring in a patient following chemotherapy is often directly related to the treatment.
While other factors may contribute, chemotherapy is a known cause of decreased platelet counts.
Choice D rationale:
"Thrombocytopenia results from the inhibition of platelet aggregation by chemotherapy." Rationale: This statement is not accurate.
Chemotherapy primarily affects platelet production and can lead to a decrease in platelet count.
It does not typically inhibit platelet aggregation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale:
"Increased platelet production due to chemotherapy." Rationale: This statement is not accurate.
Chemotherapy often suppresses bone marrow function, leading to a decrease in platelet production, not an increase.
Thrombocytopenia is a common side effect of chemotherapy due to reduced platelet production.
Choice B rationale:
"Immune-mediated platelet destruction caused by chemotherapy." Rationale: This statement is correct.
Thrombocytopenia in patients undergoing chemotherapy is often due to immune-mediated platelet destruction.
Chemotherapy can trigger an autoimmune response, leading to the destruction of platelets by the immune system.
Choice C rationale:
"Thrombocytopenia in this case is unrelated to chemotherapy." Rationale: This statement is unlikely to be true.
Thrombocytopenia occurring in a patient following chemotherapy is often directly related to the treatment.
While other factors may contribute, chemotherapy is a known cause of decreased platelet counts.
Choice D rationale:
"Thrombocytopenia results from the inhibition of platelet aggregation by chemotherapy." Rationale: This statement is not accurate.
Chemotherapy primarily affects platelet production and can lead to a decrease in platelet count.
It does not typically inhibit platelet aggregation.
Correct Answer is B
Explanation
Choice A rationale:
"A platelet count below 100,000/uL is considered normal." Rationale: This statement is incorrect.
A normal platelet count typically ranges between 150,000 and 450,000/uL.
A platelet count below 100,000/uL is not considered normal and may indicate thrombocytopenia or another underlying issue.
Choice B rationale:
"A platelet count below 50,000/uL can result in prolonged bleeding." Rationale: This statement is correct.
Platelets are essential for normal blood clotting, and a platelet count below 50,000/uL can lead to an increased risk of bleeding, especially after minor trauma.
Severe bleeding risk typically occurs when the platelet count drops below 20,000/uL.
Choice C rationale:
"Platelet count has no impact on bleeding risk." Rationale: This statement is incorrect.
Platelet count directly affects bleeding risk.
A lower platelet count increases the risk of bleeding, while a higher count can lead to an increased risk of clot formation (thrombosis)
Choice D rationale:
"Bleeding risk increases with a platelet count above 150,000/uL." Rationale: This statement is incorrect.
A platelet count above 150,000/uL is within the normal range and does not increase the risk of bleeding.
Instead, it may increase the risk of thrombosis (excessive clotting)
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