Adult-Gerontology Clinical Nurse Specialist (CNS) Practice Exam

Which of the following is NOT one of the four cardinal features indicating Parkinson disease?

1. Tremor at Rest

2. Postural Instability

3. Exaggerated Postural Reflexes

4. Rigidity

The correct answer is: Exaggerated Postural Reflexes

The four cardinal features indicating Parkinson's disease are recognized as tremor at rest, rigidity, bradykinesia (slowness of movement), and postural instability. Each of these signs plays a significant role in the clinical diagnosis of the condition. While exaggerated postural reflexes can be seen in other neurological disorders, they are not a characteristic feature of Parkinson's disease. In fact, individuals with Parkinson's often exhibit impaired postural reflexes, leading to an increased risk of falls and instability. This distinction is crucial in understanding the clinical manifestation of the disease. In summary, exaggerated postural reflexes do not belong to the hallmark symptoms of Parkinson's disease, making that choice the correct answer. Understanding these cardinal features is essential for healthcare professionals in diagnosing and managing the disease effectively.