A nurse is caring for a patient with sickle cell disease (SCD)
The patient asks, "Why do my red blood cells become sickle-shaped?" Which response by the nurse is most accurate?
"Your red blood cells become sickle-shaped due to a genetic mutation that produces abnormal hemoglobin S (HbS)”
"Sickle-shaped red blood cells occur because of an autoimmune reaction in your body.”
"The sickle shape of your red blood cells is caused by a viral infection.”
"Your diet and lifestyle choices contribute to the sickle shape of your red blood cells.”
The Correct Answer is A
Choice A rationale:
Sickle cell disease (SCD) is a genetic disorder caused by a mutation in the HBB gene, leading to the production of abnormal hemoglobin called hemoglobin S (HbS)
This abnormal hemoglobin causes red blood cells to become sickle-shaped when exposed to low oxygen levels, which is a hallmark of SCD.
The nurse's response accurately reflects the genetic basis of this condition.
Choice B rationale:
This choice is incorrect.
Sickle-shaped red blood cells in SCD are not the result of an autoimmune reaction.
Choice C rationale:
This choice is incorrect.
Sickle-shaped red blood cells are not caused by a viral infection.
Choice D rationale:
This choice is incorrect.
Diet and lifestyle choices do not contribute to the sickle shape of red blood cells in SCD.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","D"]
Explanation
Choice A rationale:
Gathering information about the patient's personal and family history of SCD or trait.
Rationale: Understanding the patient's personal and family history of SCD or the sickle cell trait is crucial in assessing the risk and potential complications associated with the disease.
It helps identify genetic factors, family support, and the likelihood of the patient experiencing complications related to SCD.
Choice B rationale:
Assessing the location, intensity, and duration of pain.
Rationale: Pain is a hallmark symptom of SCD, and assessing the location, intensity, and duration of pain is essential in managing and monitoring the patient's condition.
This information helps healthcare providers determine the severity of the pain crisis, make treatment decisions, and assess treatment effectiveness.
Choice D rationale:
Inspecting for signs of anemia and jaundice during the physical examination.
Rationale: Anemia and jaundice are common clinical manifestations of SCD.
Anemia results from the destruction of sickled red blood cells, while jaundice occurs due to the breakdown of these cells and the release of bilirubin.
Assessing for signs of anemia and jaundice, such as pallor and yellowing of the skin and sclera, is essential in monitoring the patient's overall health.
Choice C rationale:
Measuring the patient's temperature, pulse, and blood pressure.
Rationale: While vital signs are important components of a nursing assessment, they are not specific to sickle cell disease.
Monitoring vital signs is a routine practice in healthcare but may not provide specific information about the disease's complications or progression.
Choice E rationale:
Conducting genetic testing to confirm the diagnosis of SCD.
Rationale: Genetic testing is essential for diagnosing sickle cell disease, but it is typically performed before the patient is confirmed to have SCD.
Once a diagnosis is established, genetic testing may not be necessary for routine assessment.
It is crucial in the initial diagnostic phase but is not a part of ongoing nursing assessment.
Correct Answer is D
Explanation
Choice A rationale:
"I've been experiencing fever and chills recently." Fever and chills can be associated with various illnesses and infections but are not specific clinical manifestations of sickle cell disease (SCD)
The primary concern in SCD is vaso-occlusion, anemia, and pain, which should be monitored closely.
Choice B rationale:
"I've noticed a yellowing of my skin and eyes." Yellowing of the skin and eyes (jaundice) can occur in SCD due to the breakdown of hemoglobin, but it is not directly related to the pain in the chest and joints described in the question.
Choice C rationale:
"I've been having trouble breathing and feeling weak." While respiratory symptoms and weakness can occur in SCD, they are not the primary clinical manifestations associated with pain in the chest and joints.
Painful erections and impotence are more directly related to SCD complications, such as priapism, which is a medical emergency and requires prompt attention.
Choice D rationale:
"I've had painful erections and impotence." Painful erections and impotence are potential complications of sickle cell disease (SCD), particularly due to priapism, a condition where blood becomes trapped in the penis.
This can lead to severe pain and, if not treated promptly, permanent erectile dysfunction.
Therefore, the nurse should be vigilant for these clinical manifestations to address them promptly.
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