Which client would the nurse identify as high risk for developing aspiration pneumonia?

D. Patients who have had a stroke are at high risk for aspiration pneumonia due to potential impairment of their swallowing mechanisms and decreased gag reflex, which can occur if the stroke affects the parts of the brain that control these functions. Dysphagia is a common complication of strokes and significantly increases the risk of aspiration.

A. Migraines can cause significant discomfort and sometimes nausea and vomiting, they do not typically impair swallowing or protective airway reflexes. Thus, this patient is not at high risk for aspiration pneumonia.
B. Leukemia itself does not directly increase the risk of aspiration pneumonia. However, if the patient has complications such as severe weakness, altered mental status, or treatment side effects (like mucositis or infections), their risk could be increased, but it is not the primary concern in most leukemia cases.
C. Asthma affects the airways and causes difficulty breathing but does not typically impair swallowing or increase the risk of aspiration. While severe asthma attacks can cause coughing and choking, the primary issue is airway inflammation, not the risk of inhaling food or liquid.

B. The alveoli are tiny air sacs within the lungs where gas exchange occurs. Oxygen from inhaled air diffuses across the thin walls of the alveoli into the bloodstream, while carbon dioxide moves from the bloodstream into the alveoli to be exhaled.
A. The bronchi are the main airways that branch off from the trachea and lead to the lungs. While the bronchi play a crucial role in conducting air to and from the lungs, gas exchange does not occur in the bronchi themselves.
C. The nasal passages, also known as the nostrils or nares, are the passages through which air enters the respiratory system. While the nasal passages warm, humidify, and filter the air as it enters the body, gas exchange does not occur in this area.
D. The larynx, or voice box, is located at the top of the trachea and is involved in breathing, swallowing, and vocalization. However, gas exchange does not occur in the larynx.