Which type of cell death causes the least damage to cells that are nearby?
Atrophy
Apoptosis
Necrosis
Lysis
The Correct Answer is B
Choice A Reason:
Atrophy refers to the reduction in size or wasting away of an organ or tissue due to a decrease in cell size or number. It is not a type of cell death but rather a process of cell shrinkage and loss of function. Therefore, it does not directly relate to the damage caused to nearby cells.
Choice B Reason:
This is the correct answer. Apoptosis is a form of programmed cell death that occurs in a controlled and regulated manner. It allows for the removal of damaged or unnecessary cells without causing an inflammatory response or damage to surrounding tissues. During apoptosis, cellular components are neatly packaged into vesicles called apoptotic bodies, which are then phagocytosed by neighboring cells or immune cells, preventing the release of harmful substances.
Choice C Reason:
Necrosis is a form of traumatic cell death that results from acute cellular injury. It often leads to the uncontrolled release of cellular contents, causing inflammation and damage to surrounding tissues. This process can be detrimental to nearby cells and is generally considered more harmful than apoptosis.
Choice D Reason:
Lysis refers to the breaking down or destruction of cells, often due to external factors such as toxins, infections, or immune responses. Like necrosis, lysis can result in the release of cellular contents into the surrounding environment, leading to inflammation and damage to nearby cells.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A Reason:
Beta2 agonists, such as terbutaline, are commonly used to manage premature labor. These drugs work by stimulating beta2 adrenergic receptors in the smooth muscles of the uterus, leading to relaxation and suppression of contractions. Therefore, questioning the use of a beta2 agonist in this scenario would not be appropriate.
Choice B Reason:
Anticholinergic drugs are not typically used to manage premature labor. They work by blocking the action of acetylcholine in the nervous system, which can lead to various effects such as reduced secretions and relaxation of smooth muscles. However, they are not specifically indicated for stopping uterine contractions, so questioning their use in this context is less relevant.
Choice C Reason:
This is the correct answer. Beta2 antagonists, also known as beta-blockers, work by blocking beta2 adrenergic receptors, which can lead to increased uterine contractions. Using a beta2 antagonist in a patient experiencing premature labor would be counterproductive and could exacerbate the condition. Therefore, it is appropriate to question the use of beta2 antagonists in this scenario.
Choice D Reason:
Alpha1 agonists are not typically used in the management of premature labor. These drugs stimulate alpha1 adrenergic receptors, leading to vasoconstriction and increased blood pressure. They do not have a direct effect on uterine contractions, so questioning their use in this context is less relevant.
Correct Answer is D
Explanation
Choice A Reason:
Tertiary prevention focuses on managing and mitigating the complications of an existing disease to prevent further deterioration. For obesity, this might involve interventions like bariatric surgery or intensive management of comorbid conditions such as diabetes or cardiovascular disease. In this scenario, the goal is not to prevent the onset of disease but to manage its long-term effects and improve quality of life.
Choice B Reason:
Disease treatment refers to the direct management of a diagnosed condition. For a diabetic teen, this could include medications like insulin or metformin, regular monitoring of blood glucose levels, and other medical interventions to control diabetes. While a low-calorie diet and exercise are important components of diabetes management, they are more aligned with preventive measures rather than direct treatment.
Choice C Reason:
Secondary prevention aims to detect and address a disease early in its course to prevent progression. This might include screening programs, early interventions, and lifestyle modifications for individuals at high risk of developing a condition. In the context of diabetes, secondary prevention could involve regular blood glucose monitoring and early dietary changes to prevent the progression from prediabetes to diabetes.
Choice D Reason:
Primary prevention involves measures taken to prevent the onset of a disease before it occurs. This includes lifestyle interventions such as a healthy diet, regular physical activity, and maintaining a healthy weight. For an obese diabetic teen, a prescription for a low-calorie diet and exercise program is aimed at preventing further weight gain and reducing the risk of developing additional health complications, making it a primary prevention strategy.
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