The daughter of an older adult asks the nurse why her father seems to have so many respiratory infections despite receiving the annual influenza vaccine. Select the nurse's best response.

Choice A reason: Risk for Falls is the priority nursing diagnosis for a patient with Parkinson disease, as the disease affects the patient's balance, coordination, and posture. The patient may have difficulty walking, turning, and standing, which increases the risk of falling and injuring themselves. The nurse should implement interventions to prevent falls, such as providing assistive devices, removing environmental hazards, and educating the patient and family about fall prevention.

Choice B reason: Ineffective Self-Care Ability related to cognitive deficit is a possible nursing diagnosis for a patient with Parkinson disease, as the disease may impair the patient's memory, judgment, and problem-solving skills. The patient may have difficulty performing activities of daily living, such as bathing, dressing, and grooming. The nurse should assess the patient's self-care abilities, provide assistance as needed, and encourage the patient to maintain their independence and dignity.

Choice C reason: Risk for Impaired Skin Integrity related to uncontrolled hand tremors is another possible nursing diagnosis for a patient with Parkinson disease, as the disease causes involuntary movements of the hands, arms, and legs. The patient may scratch, rub, or injure their skin due to the tremors. The nurse should monitor the patient's skin condition, provide skin care, and protect the patient from skin breakdown.

Choice D reason: Nutrition: Less Than Body Requirements related to frequent nausea during meals is a potential nursing diagnosis for a patient with Parkinson disease, as the disease may affect the patient's appetite, digestion, and swallowing. The patient may experience nausea, vomiting, constipation, or dysphagia, which can lead to malnutrition and dehydration. The nurse should assess the patient's nutritional status, provide dietary modifications, and ensure adequate fluid intake.

Choice A reason: This is incorrect. Arm and leg weakness, paresthesia, blurred vision, and facial frown are not specific to Parkinson disease, but may be seen in other neurological disorders, such as multiple sclerosis or stroke.

Choice B reason: This is incorrect. Uncontrollable rapid jerky movements in arms, trunk and facial muscles are characteristic of Huntington disease, not Parkinson disease. Huntington disease is a genetic disorder that causes progressive degeneration of the nerve cells in the brain.

Choice C reason: This is incorrect. Stumbling, backward tilt of the head, quick fluttering hand movements, and quick uncontrolled gait are signs of cerebellar ataxia, not Parkinson disease. Cerebellar ataxia is a disorder that affects the coordination and balance of the movements, caused by damage to the cerebellum.

Choice D reason: This is correct. Hand tremors, bradykinesia, skeletal muscle rigidity, and postural instability are the cardinal signs and symptoms of Parkinson disease. Parkinson disease is a chronic and progressive disorder that affects the dopamine-producing neurons in the brain, resulting in movement problems.