AACN Certification Practice Test 2025 – Comprehensive Exam Prep

Parkinson's voice characteristics are primarily marked by a notable reduction in loudness, which is commonly described as quiet or weak. This occurs due to the effects of the disease on the neurological control of muscles related to speech, leading to reduced respiratory support and diminished vocal strength. Individuals may struggle to project their voice, making it more difficult to communicate effectively.

The other choices do not accurately reflect the typical voice changes observed in people with Parkinson's. High-pitched and loud would suggest a different vocal issue, possibly not related to the classic symptoms of Parkinson's. Rhythmic and smooth conveys an impression of fluency and clear articulation which is often compromised in these patients. Sharp and commanding implies a level of vocal assertiveness and strength that is generally not seen in patients with the condition. Thus, the description of a voice that is quiet and weak is the most fitting for Parkinson's voice characteristics.