The school nurse is teaching a group of clients about how tobacco smoke causes lung cancer. Which pathophysiological process supports the risk of cancer from smoking?
Vasoconstrictive properties of nicotine reduce oxygenation and stimulate metabolism.
Drug addiction changes the neurochemical messages in the brain causing cravings.
Carcinogenic agents in tobacco alter cellular cytology, morphology, and function of the lung.
Risk for comorbidities increase incidence of chronic diseases and decrease longevity.
The Correct Answer is C
Smoking is a well-established risk factor for lung cancer, and the pathophysiological process underlying this association involves the exposure of the lungs to carcinogenic agents present in tobacco smoke. Here's why option C is the correct choice:
A) Vasoconstrictive properties of nicotine reduce oxygenation and stimulate metabolism:
While nicotine is a primary addictive component of tobacco smoke and can lead to vasoconstriction, reduced oxygenation, and increased metabolism, these effects primarily contribute to cardiovascular diseases associated with smoking, such as coronary artery disease and stroke, rather than the development of lung cancer.
B) Drug addiction changes the neurochemical messages in the brain causing cravings:
This statement addresses the addictive nature of nicotine and its impact on neurochemistry, leading to cravings and dependence. While addiction is a significant aspect of tobacco use, it does not directly explain the pathophysiological process by which smoking causes lung cancer.
C) Carcinogenic agents in tobacco alter cellular cytology, morphology, and function of the lung:
Correct. Tobacco smoke contains numerous carcinogenic compounds, such as polycyclic aromatic hydrocarbons (PAHs), nitrosamines, and benzene, which can directly damage the DNA of lung cells. This DNA damage can lead to mutations and alterations in cellular cytology, morphology, and function, ultimately contributing to the development of lung cancer.
D) Risk for comorbidities increase incidence of chronic diseases and decrease longevity:
While smoking is associated with an increased risk of various comorbidities and chronic diseases, such as cardiovascular diseases, respiratory diseases, and certain cancers, this option does not specifically address the pathophysiological process of lung cancer development.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Gastric carcinoma:
Helicobacter pylori infection is a known risk factor for the development of gastric carcinoma, or stomach cancer. Long-term follow-up is essential for clients treated for gastric ulcers caused by H. pylori infection to monitor for any signs or symptoms of gastric malignancy, such as persistent abdominal pain, unexplained weight loss, dysphagia, or gastrointestinal bleeding. Regular surveillance with endoscopic examinations may be recommended to detect any precancerous or cancerous changes in the gastric mucosa.
B. Hypokalemia:
Hypokalemia, or low potassium levels, is not directly associated with gastric ulcers caused by H. pylori infection. While certain medications used in the treatment of gastric ulcers, such as proton pump inhibitors (PPIs) or H2-receptor antagonists, may increase the risk of hypokalemia, it is not a long-term complication specifically related to H. pylori infection.
C. Kidney stones:
Kidney stones, or nephrolithiasis, are not directly associated with gastric ulcers caused by H. pylori infection. Kidney stones typically form in the kidneys and urinary tract due to factors such as dehydration, dietary factors, or metabolic disorders. While certain conditions, such as chronic kidney disease, may be associated with gastric ulcers, kidney stones are not a typical long-term complication.
D. Celiac disease:
Celiac disease is an autoimmune disorder characterized by an abnormal immune response to gluten, a protein found in wheat, barley, and rye. It is not directly associated with gastric ulcers caused by H. pylori infection. Celiac disease primarily affects the small intestine, leading to inflammation and damage to the intestinal lining in response to gluten ingestion. While individuals with celiac disease may experience gastrointestinal symptoms, they are not at increased risk for gastric ulcers specifically related to H. pylori infection.
Correct Answer is D
Explanation
A) Shivering:
Shivering is not a normal inflammatory response to wound healing. It may indicate systemic symptoms such as fever or chills, which could be indicative of infection or other complications.
B) Purulent drainage:
Purulent drainage (pus) is often a sign of infection rather than a normal inflammatory response to wound healing. While some serous or serosanguinous drainage may be expected initially, purulent drainage suggests an abnormal response.
C) Temperature of 102° F (37.8° C):
A temperature of 102° F (37.8° C) is indicative of fever, which can occur in response to infection or inflammation. While fever is part of the inflammatory response, it is not necessarily considered a normal finding in the context of wound healing and may indicate an abnormal response such as infection.
D) Redness and localized heat:
Correct. Redness (erythema) and localized heat are typical signs of the inflammatory phase of wound healing. Inflammation is a normal response to tissue injury and is characterized by increased blood flow to the area, resulting in redness and warmth. These signs indicate that the body's immune response is active and working to repair the injured tissue.
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