What are the characteristics of Wilson's disease?

MP CHO -2021 (Shift 1st)

Pathology & Genetics

Easy

Appeared in: MP CHO -2021 (Shift 1st)

Explanation

Wilson's disease is an autosomal recessive genetic disorder of copper metabolism.
It is caused by a mutation in the ATP7B gene, which impairs the liver's ability to excrete copper into the bile.
This defect leads to the toxic accumulation of copper, primarily in the liver, brain, kidneys, and the corneas of the eyes.
Key clinical features include liver disease (hepatitis, cirrhosis), neurological symptoms (tremors, dystonia), psychiatric disturbances, and the characteristic Kayser-Fleischer rings in the eyes.

Option A: Difficulty in breathing is not a primary or defining symptom of Wilson's disease. The disease's main effects are on the liver and central nervous system.
Option C: Wilson's disease does not cause abnormal organ development (organogenesis). Instead, it causes progressive damage to normally formed organs due to the toxic effects of copper accumulation over time.
Option D: This option is incorrect because a correct characteristic is listed among the choices. Option B accurately describes the fundamental pathology of Wilson's disease.

Clinical Relevance

Nursing practice connection: Knowing Pathophysiology and clinical manifestations of Wilson's disease helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Nurses play a vital role in educating patients about lifelong adherence to copper-chelating medications (like penicillamine or trientine) and a low-copper diet (avoiding shellfish, liver, nuts, chocolate).
Consistent monitoring of liver function tests, 24-hour urinary copper excretion, and neurological status is crucial for assessing treatment efficacy and detecting disease progression.
What if? If a patient with Wilson's disease presents with sudden jaundice, anemia, and renal dysfunction, the nurse should suspect acute fulminant liver failure with massive hemolysis, a medical emergency requiring immediate hospitalization and potential liver transplantation evaluation.

How to Approach the Question

First, identify the core subject of the question, which is 'Wilson's disease'.
Recall the fundamental pathophysiology of this condition. It is a well-known inherited disorder of mineral metabolism.
Focus on the specific mineral involved, which is copper. The central problem is the body's inability to excrete excess copper.
Evaluate the options based on this core fact. 'Difficulty in breathing' is a respiratory symptom and not directly related. 'Abnormal development of organs' refers to congenital issues, whereas Wilson's disease is about acquired damage to normally formed organs.
Recognize that 'Accumulation of copper in the liver, kidney, and brain' directly and accurately describes the pathophysiology of the disease.
Therefore, select this option as the correct characteristic.

Concept Tested & Keywords

Concept Tested: Pathophysiology and clinical manifestations of Wilson's disease.
Stem keywords: Wilson's disease, characteristics
Lead-in keywords: What are
Negative lead-in flag: false

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