A nurse is teaching a group of women about medications. The women want to know why so many drugs have unpredictable effects in women. The nurse will tell them that:
Drugs usually have more toxic effects in women.
Women metabolize drugs more slowly.
Most known drug effects are based on drug trials in men.
Women have varying responses to drugs during menstrual cycles.
The Correct Answer is C
Choice A Reason:
While it is true that women often experience more adverse drug reactions than men, this is not because drugs inherently have more toxic effects in women. The higher incidence of side effects in women is largely due to the fact that drug dosages and effects have historically been studied primarily in men. This has led to a lack of understanding of how drugs specifically affect women.
Choice B Reason:
Women do not necessarily metabolize drugs more slowly than men. Drug metabolism can vary widely depending on the specific medication and individual differences. However, the lack of female representation in clinical trials has resulted in less data on how women metabolize certain drugs, leading to unpredictable effects.
Choice C Reason:
Most known drug effects are indeed based on drug trials conducted predominantly in men. Historically, women were excluded from clinical trials due to concerns about hormonal fluctuations and potential risks to fetuses. This has resulted in a significant gap in knowledge about how drugs affect women, leading to more unpredictable and often adverse effects when these drugs are used by women.
Choice D Reason:
While hormonal fluctuations during menstrual cycles can affect drug metabolism and efficacy, this is not the primary reason for the unpredictable effects of drugs in women. The main issue is the historical exclusion of women from clinical trials, which has led to a lack of data on how drugs affect women differently from men.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A 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 vaccinations. Mammograms, however, are not used to prevent breast cancer from occurring but to detect it early.
Choice B Reason:
Secondary prevention aims to detect and address a disease early in its course to prevent progression. Mammograms are a classic example of secondary prevention because they are used to screen for breast cancer in women who do not yet show symptoms2. Early detection through mammograms can lead to earlier treatment, which can significantly improve outcomes and reduce mortality rates.
Choice C Reason:
Disease treatment refers to the direct management of a diagnosed condition. For breast cancer, this could include surgery, chemotherapy, radiation therapy, and other medical interventions. Mammograms are not a treatment but a diagnostic tool used to detect the presence of cancer.
Choice D Reason:
Tertiary prevention focuses on managing and mitigating the complications of an existing disease to prevent further deterioration. For breast cancer, this might involve rehabilitation, ongoing treatment to prevent recurrence, and palliative care. Mammograms are used for early detection, not for managing complications of already diagnosed cancer.
Correct Answer is A
Explanation
Choice A Reason:
Respiratory alkalosis occurs when a person breathes rapidly (hyperventilates), causing a decrease in carbon dioxide (CO2) levels in the blood. This reduction in CO2 leads to an increase in blood pH, resulting in alkalosis. Hyperventilation can be triggered by anxiety, fever, or other conditions that increase respiratory rate.
Choice B Reason:
Metabolic alkalosis is caused by an increase in bicarbonate (HCO3-) or a loss of hydrogen ions (H+), often due to vomiting, diuretic use, or excessive bicarbonate intake. It is not directly related to hyperventilation, which primarily affects CO2 levels rather than bicarbonate levels.
Choice C Reason:
Metabolic acidosis occurs when there is an excess of acid in the body or a loss of bicarbonate, often due to conditions like diabetic ketoacidosis, renal failure, or severe diarrhea. Hyperventilation does not cause metabolic acidosis; instead, it can be a compensatory response to metabolic acidosis to help lower CO2 levels and increase pH.
Choice D Reason:
Respiratory acidosis is caused by hypoventilation, where there is inadequate removal of CO2 from the body, leading to an increase in CO2 levels and a decrease in blood pH. This condition is the opposite of what occurs during hyperventilation, making this choice incorrect.
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