A 63-year-old Black man is diagnosed with bacterial pneumonia. What is the pathophysiology of this disease process?
Inflammation of the bronchial wall leads to mucosal thickening, epithelial cell desquamation, and denudation of the basement membrane
An irritant causes an inflammatory response that leads to destruction of the alveolar air sacs, causing irreversible obstructive airway physiology
Airway obstruction occurs due to the combination of inflammatory cell infiltration, mucus hypersecretion with mucus plug formation, and smooth muscle contraction
The inflammatory response initiated by a viral or bacterial infection causes leakage of the alveolar-capillary membrane at the site of inflammation, causing a decrease in lung compliance and shortness of breath
The Correct Answer is D
Choice A reason: This describes the pathophysiology of chronic bronchitis, a form of chronic obstructive pulmonary disease (COPD), not bacterial pneumonia. It involves inflammation of the bronchial walls and mucosal changes but does not explain the alveolar involvement seen in pneumonia.
Choice B reason: This is characteristic of emphysema, another form of COPD, where alveolar walls are destroyed leading to air trapping and reduced gas exchange. It is not the mechanism of bacterial pneumonia.
Choice C reason: This describes asthma, where airway obstruction results from smooth muscle contraction, mucus production, and inflammation. Pneumonia does not typically involve bronchospasm or reversible airway obstruction.
Choice D reason: This accurately describes bacterial pneumonia. The infection triggers an inflammatory response that increases permeability of the alveolar-capillary membrane, leading to fluid accumulation, impaired gas exchange, and reduced lung compliance. This results in symptoms such as dyspnea, cough, and hypoxia.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Minocycline is a tetracycline antibiotic and has not been established as a treatment for autonomic dysreflexia. While it has neuroprotective and anti-inflammatory properties in experimental models, it is not part of the clinical management protocol for autonomic dysreflexia.
Choice B reason: OnabotulinumtoxinA (Botox) has been used in patients with neurogenic bladder or spasticity, which can contribute to autonomic dysreflexia. It helps reduce bladder overactivity and prevent triggering episodes.
Choice C reason: Nifedipine, a calcium channel blocker, is commonly used to manage acute hypertension in autonomic dysreflexia. It reduces blood pressure quickly and is considered a first-line agent in emergent settings.
Choice D reason: Lidocaine may be used to suppress afferent stimuli during procedures such as catheterization, which can trigger autonomic dysreflexia. It helps block nociceptive input and prevent reflex sympathetic discharge.
Correct Answer is D
Explanation
Choice A reason: This describes the pathophysiology of gastroesophageal reflux disease (GERD), not ulcerative colitis. UC affects the colon, not the esophagus.
Choice B reason: This explanation pertains to peptic ulcer disease, where H. pylori and NSAIDs disrupt gastric mucosal defenses. It does not apply to UC, which is an inflammatory bowel disease.
Choice C reason: These factors may influence general gastrointestinal health or contribute to irritable bowel syndrome (IBS), but they do not explain the autoimmune and inflammatory nature of UC.
Choice D reason: Ulcerative colitis is characterized by chronic inflammation of the colon due to defects in the epithelial barrier, dysregulated immune responses, abnormal leukocyte trafficking, and altered gut microbiota. These mechanisms lead to mucosal ulceration, bleeding, and systemic symptoms.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.