A client experiences residual effects following an acute attack of Ménière's disease and receives a new prescription for an antihistamine. Which assessment finding indicates that the medication is effective?

A. Patients with respiratory distress often prefer to sit upright or in a tripod position to ease breathing by allowing maximal lung expansion. Sitting upright helps relieve pressure on the diaphragm and allows better air exchange in the lungs.
B. Chest tightness is a common symptom of various respiratory conditions, such as asthma, chronic obstructive pulmonary disease (COPD), or pneumonia. It can result from bronchoconstriction, inflammation, or accumulation of mucus in the airways, leading to difficulty breathing.
D. An increased respiratory rate (tachypnea) may indicate respiratory distress or difficulty breathing. Tachypnea is a compensatory mechanism to increase oxygen intake or remove carbon dioxide from the body when lung function is compromised.
E. Restlessness can be a cue for a respiratory problem. Patients experiencing respiratory distress may exhibit restlessness due to hypoxia (low oxygen levels), discomfort, or anxiety related to difficulty breathing.
F. Dyspnea, or shortness of breath, is a significant cue for a respiratory problem. It is a common symptom of various respiratory conditions, including asthma, COPD, pneumonia, and pulmonary embolism. Dyspnea may range from mild to severe and can significantly impact the patient's quality of life and functional status.
G. A pulse oxygenation level of 85% indicates hypoxemia (low blood oxygen levels) and is a significant cue for a respiratory problem. Hypoxemia can result from various respiratory conditions or inadequate ventilation and may lead to tissue hypoxia and organ dysfunction if left untreated.
C. Medication compliance is not directly indicative of a respiratory problem. However, it may be relevant to managing respiratory conditions if the patient requires medications such as bronchodilators or corticosteroids to control symptoms or prevent exacerbations.
H. While an elevated heart rate (tachycardia) can be associated with respiratory distress, it is not specific to respiratory problems and may occur in response to other stressors or medical conditions.
I. Body mass index (BMI) is a measure of body fat based on height and weight and is not directly indicative of a respiratory problem. However, obesity is a risk factor for respiratory conditions such as obstructive sleep apnea and obesity hypoventilation syndrome.

C. One of the hallmark features of ADC is the development of cognitive impairment, including changes in memory, concentration, and problem-solving abilities. The change in handwriting (graphomotor impairment) is a specific neurological symptom that may indicate cognitive dysfunction and is consistent with the diagnosis of AIDS dementia.
A. This symptom suggests emotional distress or mood disturbances, which can occur in individuals with HIV/AIDS due to the psychological impact of the diagnosis and the uncertainty surrounding the disease progression. However, it is not specific to AIDS dementia
B. Increased sleepiness or hypersomnia can occur in individuals with AIDS dementia due to disruptions in sleep-wake cycles and alterations in brain function. However, increased sleepiness alone is not specific to AIDS dementia
D. Social withdrawal or isolation can occur in individuals with HIV/AIDS due to various reasons, including stigma, depression, or physical symptoms. However, it is not specific to AIDS dementia.