During an interview with a male client who has Parkinson's disease (PD), the nurse notices that he is drooling and mumbling. Which pathophysiological factor contributes to the client's inability to express himself?

Damage to Broca's area in temporal lobe of brain.

Degeneration of dopaminergic neurons of the basal ganglia.

Brain atrophy with diffuse amyloid plaques disposition.

Paralysis of the pharyngeal and epiglottal area.

Answer and Explanation

The Correct Answer is B

Parkinson's disease (PD) is a neurodegenerative disorder characterized by the progressive degeneration of dopaminergic neurons in the substantia nigra of the basal ganglia. This degeneration leads to a deficiency of dopamine, a neurotransmitter involved in the regulation of movement and coordination. The inability to express oneself, as seen in the client's mumbling, can be attributed to the motor symptoms of PD, particularly bradykinesia (slowness of movement) and hypomimia (reduced facial expression), which result from dopaminergic neuron degeneration.

A) Damage to Broca's area in the temporal lobe of the brain:

Damage to Broca's area typically results in expressive aphasia, which is characterized by difficulty speaking and forming coherent sentences. While speech difficulties can occur in PD, they are primarily due to motor dysfunction rather than damage to specific language centers in the brain.

B) Degeneration of dopaminergic neurons of the basal ganglia:

Correct. Degeneration of dopaminergic neurons in the basal ganglia, particularly the substantia nigra, is the primary pathological factor in Parkinson's disease. This degeneration leads to motor symptoms such as bradykinesia, tremor, and rigidity, which can affect the client's ability to speak clearly and express himself.

C) Brain atrophy with diffuse amyloid plaques disposition:

This description is more characteristic of Alzheimer's disease, a different neurodegenerative disorder characterized by brain atrophy and the deposition of amyloid plaques. While cognitive impairment can occur in PD, the primary motor symptoms are related to dopaminergic neuron degeneration rather than amyloid plaque deposition.

D) Paralysis of the pharyngeal and epiglottal area:

Paralysis of the pharyngeal and epiglottal area can lead to dysphagia (difficulty swallowing) rather than difficulty expressing oneself verbally. While dysphagia can occur in PD, it is not typically the primary factor contributing to speech difficulties in this condition.

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Correct Answer is B

Explanation

A) Elevation in blood pressure:

While elevation in blood pressure could potentially cause discomfort at the arterial line insertion site, it is not the most likely physiological effect to induce sudden pain in this scenario. Blood pressure elevation would typically cause generalized symptoms rather than localized pain at the insertion site.

B) Vasospasm at insertion site:

Correct. Vasospasm refers to the sudden constriction of blood vessels, leading to reduced blood flow. It can occur in response to arterial puncture or manipulation during arterial line insertion, resulting in sudden pain at the insertion site.

C) Clot in the arterial catheter:

A clot in the arterial catheter could potentially cause obstruction and affect blood flow, but it is less likely to induce sudden pain at the insertion site unless there is associated ischemia or tissue damage.

D) Air lock in the transducer:

An air lock in the transducer could disrupt pressure monitoring but is not typically associated with sudden pain at the insertion site. It may lead to inaccurate pressure readings rather than localized pain.

A. 40 to 60. B. 20 to 40. C. 60 to 80. D. 80 to 100.

Correct Answer is A

Explanation

The atrioventricular (AV) node is an essential component of the cardiac conduction system responsible for transmitting electrical impulses from the atria to the ventricles. The inherent rate of the AV node refers to its intrinsic ability to generate electrical impulses in the absence of external influences.

Here's a breakdown of each option:

A) 40 to 60:

Correct. The inherent rate of the AV node is typically 40 to 60 beats per minute (bpm). This rate is slower than that of the sinoatrial (SA) node, which has an inherent rate of 60 to 100 bpm. The AV node acts as a backup pacemaker, ensuring that the ventricles receive electrical impulses even if the SA node fails to function properly.

B) 20 to 40:

This range is not consistent with the typical inherent rate of the AV node. A rate of 20 to 40 bpm would be unusually slow and could indicate significant conduction system abnormalities rather than the normal functioning of the AV node.

C) 60 to 80:

This range is more characteristic of the inherent rate of the SA node rather than the AV node. The SA node is the primary pacemaker of the heart, and its inherent rate is typically 60 to 100 bpm.

D) 80 to 100:

Similar to option C, this range is more consistent with the inherent rate of the SA node rather than the AV node. The SA node typically has a faster intrinsic rate compared to the AV node.

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During an interview with a male client who has Parkinson's disease (PD), the nurse notices that he is drooling and mumbling. Which pathophysiological factor contributes to the client's inability to express himself?

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Naxlex Comprehensive Predictor Exams

After the nurse obtains a blood sample from a client's right radial arterial client reports a sudden onset of pain at the arterial line insertion site. The nurse recognizes which physiological effect may be inducing the sudden pain?

Correct Answer is B

Explanation

What is the inherent rate of the AV (atrioventricular) node area?

Correct Answer is A

Explanation

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