A client with sickle cell disease asks the nurse about the effects of hemoglobin S on red blood cells.
Which statement by the nurse accurately explains the pathophysiology of this condition?

Impaired immune function.

Choice A rationale:

Chronic hypoxia.

Chronic hypoxia is not the primary concern described by the patient.

While individuals with sickle cell disease can experience episodes of hypoxia, the patient's main complaints are related to fatigue and frequent infections.

Chronic hypoxia could be a consequence of the disease, but it is not the aspect the nurse is likely evaluating in this case.

Choice B rationale:

Impaired immune function.

The patient's complaints of feeling tired and getting sick easily, especially with respiratory infections, suggest impaired immune function.

Sickle cell disease can affect the spleen, which plays a crucial role in the immune system.

Many individuals with this condition experience functional asplenia, making them more susceptible to infections, particularly encapsulated bacteria like Streptococcus pneumoniae.

This compromised immune function is a significant concern for patients with sickle cell disease, and the nurse should assess and address it.

Choice C rationale:

Delayed growth and development.

Delayed growth and development are not the primary concerns mentioned by the patient in this scenario.

While children with sickle cell disease can experience delayed growth and development due to chronic anemia and other factors, the patient's main complaints are related to fatigue and frequent infections, which are more indicative of impaired immune function.

Choice D rationale:

Vascular occlusion.

Vascular occlusion can be a significant issue in sickle cell disease, leading to pain and tissue damage, but it is not the aspect the nurse is likely evaluating in this patient based on the information provided.

The patient's chief complaints are related to fatigue and frequent infections, suggesting that impaired immune function is the primary concern.

Choice A rationale:

Pulmonary Hypertension Sickle cell disease is primarily characterized by the presence of abnormal hemoglobin (HbS), leading to the formation of sickle-shaped red blood cells.

While pulmonary hypertension can occur in patients with sickle cell disease, it is not the most likely complication based on the presented symptoms.

The patient's paleness and easy fatigue are more indicative of anemia, which is a common complication in sickle cell disease.

Anemia results from a reduced number of functional red blood cells, leading to reduced oxygen-carrying capacity and fatigue.

Choice C rationale:

Hematuria Hematuria, the presence of blood in the urine, can occur in sickle cell disease, but it is not the most likely complication based on the child's reported symptoms of paleness and easy fatigue.

Hematuria may be associated with other complications such as kidney damage, but it is not the primary concern in this case.

Choice D rationale:

Functional Asplenia Functional asplenia refers to the impaired function of the spleen, which is a common complication in sickle cell disease.

However, the symptoms described by the child's parent, including paleness and easy fatigue, are more indicative of anemia, which is a consequence of sickle cell disease.