What is the definition of prophylaxis?
The sequence of events involved in tissue changes of a specific disease.
A state where pathologic changes occur, but no symptoms are present.
A measure that preserves health and prevents the spread of a disease.
The tendencies that promote the development of a disease in a person.
The Correct Answer is C
Rationale:
A. This describes pathogenesis, which is the development and progression of disease at the cellular and tissue levels. Pathogenesis focuses on how a disease originates and evolves, not on prevention.
B. This describes the subclinical or latent stage of disease, where damage is occurring but the individual shows no observable symptoms. This is not related to prophylactic measures.
C. Prophylaxis refers to actions or interventions taken to prevent disease or reduce the risk of spreading infection. Examples include vaccinations, taking antibiotics before surgery, practicing hand hygiene, or using protective equipment. Prophylactic measures are an essential component of public health and preventive medicine.
D. This describes predisposing factors, which are risk factors that increase susceptibility to a disease but are not preventative measures.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Rationale:
A. Scar tissue does not restore the original specialized cells of the tissue. Instead, fibroblasts produce collagen fibers to fill the wound, so the tissue loses some functionality and specialization.
B. Scar tissue lacks the normal structures of skin or tissue, including nerve endings. As a result, sensory perception is often reduced, not improved.
C. Scar tissue is primarily composed of dense, irregular collagen fibers, which provide structural strength but decrease tissue elasticity. This can lead to stiffness, restricted movement, or contractures in the area of the scar, especially over joints or large wounds.
D. Scar tissue is metabolically less active than normal tissue. Fibroblasts are active during healing, but once the scar is formed, it has low metabolic activity and does not function like the original tissue.
Correct Answer is B
Explanation
Rationale:
A. Adolescents typically have healthy, well-functioning immune systems. While they may experience infections or inflammatory responses, they are not inherently at higher risk for severe inflammation compared to other populations.
B. Uninsured populations often face limited access to healthcare, delayed diagnosis, and inadequate treatment for infections or chronic conditions. As a result, inflammatory conditions may progress unchecked, increasing the risk of severe or systemic inflammatory responses, such as sepsis or uncontrolled autoimmune reactions. Social determinants of health, such as poverty, poor nutrition, and lack of preventive care, further exacerbate susceptibility.
C. Young adults generally have strong immune systems and are less likely to experience severe inflammatory responses unless they have underlying health conditions. Age alone does not make them high-risk.
D. While rural populations may face challenges in healthcare access, geographic location alone does not directly increase the biological risk for a severe inflammatory response. The risk is more associated with access to timely medical care, not inherent physiological susceptibility.
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