What is the typical clinical presentation of Flaccid Dysarthria?

• A. Increased speech intelligibility
• B. Inconsistent speech volume
• C. Tremors during speech
• D. Hypotonic and weak articulation

Answer: (D)

Flaccid Dysarthria is characterized by muscle weakness and reduced muscle tone, reflecting the underlying issues caused by lower motor neuron injury or disease. The hallmark features of this type of dysarthria include hypotonicity, which means that the affected muscles are less toned than normal, leading to a weak and often breathy voice quality. This weakness frequently impacts articulation, resulting in imprecise consonants and a softer overall sound.

In contrast, increased speech intelligibility would not be a typical presentation in Flaccid Dysarthria due to the articulation difficulties associated with muscle weakness. Inconsistent speech volume can occur but is not as definitive a characteristic of Flaccid Dysarthria compared to the generally diminished volume due to the weak muscles responsible for speech production. Tremors during speech are more commonly associated with other types of dysarthria, such as hyperkinetic dysarthria, rather than Flaccid Dysarthria, where the predominant issue is muscle weakness and lack of tone. Thus, hypotonic and weak articulation accurately represents the typical clinical presentation of this condition.