The classic manifestations associated with Parkinson's disease are tremor, rigidity, bradykinesia, and postural instability. The nurse understands that a finding related to postural instability includes which of the following?
Retropulsion
Impaired handwriting
Muscle soreness and pain
Slow movements
The Correct Answer is A
A. Retropulsion is a classic manifestation of postural instability in Parkinson's disease. It refers to a tendency to lose balance and fall backward, especially when attempting to initiate walking or when challenged with external forces.
B. Impaired handwriting, also known as micrographia, is associated with bradykinesia (slowness of movement) in Parkinson's disease. It manifests as progressively smaller and more cramped handwriting.
C. Muscle soreness and pain can occur in Parkinson's disease, but they are not typically directly associated with postural instability. They may occur due to rigidity (muscle stiffness) or abnormal postures maintained over time.
D. Slow movements, or bradykinesia, are a hallmark feature of Parkinson's disease and are characterized by a gradual reduction in the speed and fluidity of voluntary movements. While related to motor symptoms in Parkinson's disease, slow movements are not specific to postural instability.
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Related Questions
Correct Answer is C
Explanation
A. While GBS primarily affects peripheral nerves (nerves outside the brain and spinal cord), it does not typically cause direct degeneration of nerves in the brainstem and spinal cord. Therefore, this option is not correct in the context of respiratory distress in GBS.
B. Pleural effusion caused by immobility: Pleural effusion, an accumulation of fluid in the pleural cavity around the lungs, is not a typical complication of GBS. It is more commonly associated with conditions such as heart failure, pneumonia, or malignancy, rather than directly with GBS.
C. In Guillain-Barre Syndrome, demyelination of nerves affects the transmission of signals from the brain to the muscles, including those responsible for respiration. As a result, respiratory muscles may become weak or paralyzed, leading to shallow breathing and respiratory distress.
D. While respiratory distress can occur in some neurological conditions due to autonomic dysfunction or secondary complications, such as aspiration pneumonia, bronchoconstriction and airway edema are not typical manifestations of GBS itself.
Correct Answer is B
Explanation
A. Carbidopa itself does not cross the blood-brain barrier. Its primary role in Sinemet is to inhibit the peripheral breakdown of levodopa (the precursor of dopamine) into dopamine before it reaches the brain.
B. It is true that it may take a few weeks to see the full effects of this medication, as the body needs time to adjust to it.
C. Parkinson's disease is progressive, and as the disease advances, the dosage and frequency of levodopa with carbidopa may need to be adjusted to maintain symptom control. Over time, higher doses or additional medications may be required to manage symptoms effectively.
D. Levodopa does not protect Carbidopa; rather, Carbidopa protects Levodopa from early conversion to dopamine outside the brain, which would make it less effective.
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