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 C

Explanation

A. Herpes simplex virus:

While herpes simplex virus (HSV) infection is a sexually transmitted infection that can cause genital ulcers and lesions, it is not directly associated with an increased risk of cervical cancer. However, individuals with genital herpes may have an increased risk of acquiring human papillomavirus (HPV), which is a significant risk factor for cervical cancer.

B. Vulvovaginitis:

Vulvovaginitis refers to inflammation or infection of the vulva and vagina and can be caused by various factors, including bacterial, fungal, or viral infections. While chronic inflammation or infection may contribute to cellular changes in the cervix, it is not a direct risk factor for cervical cancer.

C. Human papillomavirus (HPV):

Human papillomavirus (HPV) infection is the most significant risk factor for developing cervical cancer. Certain high-risk strains of HPV, particularly HPV types 16 and 18, are strongly associated with the development of cervical dysplasia and cervical cancer. Persistent infection with high-risk HPV strains can lead to cellular changes in the cervix, eventually progressing to cervical cancer.

D. Chronic yeast infections:

Chronic yeast infections, also known as recurrent vulvovaginal candidiasis, are caused by the overgrowth of Candida species in the vaginal area. While chronic yeast infections can cause discomfort and recurrent symptoms, they are not directly linked to an increased risk of cervical cancer. However, chronic irritation or inflammation in the genital area may increase the susceptibility to other infections, including HPV.

A. The usual types of reactions are mediated by antibodies. B. B-lymphocytes produce the offending substances. C. They typically occur with the first exposure to an antigen. D. Delayed reactions are characterized by cytokine release.

Correct Answer is A

Explanation

A) The usual types of reactions are mediated by antibodies:

Correct. Types I, II, and III hypersensitivity reactions are mediated by antibodies (IgE, IgG, or IgM) that bind to antigens and trigger immune responses. In contrast, Type IV hypersensitivity reactions are T-cell mediated and do not involve antibodies.

B) B-lymphocytes produce the offending substances:

This statement is incorrect. B-lymphocytes are involved in antibody-mediated immune responses (types I, II, and III hypersensitivity reactions), not Type IV hypersensitivity reactions, which are primarily mediated by T-lymphocytes.

C) They typically occur with the first exposure to an antigen:

This statement is incorrect. Type IV hypersensitivity reactions usually require sensitization upon initial exposure to an antigen, and subsequent exposures elicit the delayed hypersensitivity response. This is similar to types I, II, and III hypersensitivity reactions, which also involve sensitization upon initial exposure.

D) Delayed reactions are characterized by cytokine release:

This statement is partially correct. Type IV hypersensitivity reactions are characterized by a delayed onset (typically 24 to 72 hours after exposure) and involve the release of cytokines from activated T-lymphocytes, leading to inflammation and tissue damage. However, other types of hypersensitivity reactions may also involve cytokine release, so this feature alone does not differentiate Type IV from other types of reactions.

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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A postmenopausal client presenting to the clinic with describing abdominal pain and an episode of unexplained vaginal Nearing receives a Pap smear (Papanicolaou test). Which medical history information should the nurse expect places the client at most risk for developing cervical cancer,

Correct Answer is C

Explanation

How are Type IV hypersensitivity reactions different from all other types (I, II, or III) of hypersentivity reactions?

Correct Answer is A

Explanation

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