A nurse is teaching a patient newly diagnosed with Parkinson’s disease about the pathophysiology of the condition. Which of the following explanations best describes the underlying cause of Parkinson's disease?
Inflammation of the motor cortex leads to decreased coordination and balance
Degeneration of dopamine producing neurons in the substantia nigra of the brain leads to motor dysfunction
A loss of acetylcholine in the brain leads to memory problems and cognitive decline.
Excess production of dopamine in the basal ganglia leads to tremors and muscle rigidity.
The Correct Answer is B
A. Inflammation of the motor cortex leads to decreased coordination and balance. Parkinson’s disease is not caused by inflammation in the motor cortex; it primarily involves the loss of dopamine-producing neurons.
B. Degeneration of dopamine-producing neurons in the substantia nigra of the brain leads to motor dysfunction. Parkinson’s disease is caused by the degeneration of dopamine-producing neurons in the substantia nigra, leading to motor symptoms such as tremors, rigidity, and bradykinesia.
C. A loss of acetylcholine in the brain leads to memory problems and cognitive decline. While a loss of acetylcholine is associated with Alzheimer’s disease, it is not the primary issue in Parkinson’s disease.
D. Excess production of dopamine in the basal ganglia leads to tremors and muscle rigidity. In Parkinson’s disease, there is a decrease, not an excess, in dopamine production, which contributes to motor symptoms.
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Correct Answer is A
Explanation
A. Drink plenty of fluids to stay well hydrated. Hydration is crucial for clients with sickle cell disease as it helps prevent blood thickening and reduces the risk of sickling crises.
B. Limit your intake of fruits and vegetables to avoid complications. Fruits and vegetables are essential for balanced nutrition and are not contraindicated in sickle cell disease. Limiting them is unnecessary and could lead to nutritional deficiencies.
C. You can stop your prescribed antibiotics once you feel better. Antibiotics should always be completed as prescribed to fully treat any infection and prevent resistance, especially in individuals with weakened immune responses.
D. Take your pain medications only when you have severe pain. Clients with sickle cell disease should take pain medications as needed, even for mild pain, to prevent escalation of pain and a sickle cell crisis.
Correct Answer is C
Explanation
A. "I should monitor my temperature regularly and report any fevers to my healthcare provider." This statement shows correct understanding. Fever may indicate worsening infection or complications, so it’s important to monitor and report any fevers.
B. "I need to inform my healthcare provider about any new symptoms, such as shortness of breath or chest pain." This statement shows understanding. New symptoms, especially respiratory or cardiac, could signify complications, and should be reported.
C. "I can stop taking my antibiotics once I feel better." This indicates a need for further teaching. Completing the full course of antibiotics is crucial to ensure the infection is completely eradicated, even if symptoms improve.
D. "I will need to take antibiotics before dental procedures." Patients with infective endocarditis often require prophylactic antibiotics before dental procedures to prevent bacterial entry into the bloodstream.