ATI RN · Pathophysiology · WGU Pathophysiology Final Exam

Option A: Decreased urinary frequency and urgency is the expected outcome when a patient is prescribed finasteride for benign prostatic hyperplasia (BPH). Finasteride works by inhibiting the conversion of testosterone to dihydrotestosterone (DHT), leading to a reduction in prostate size and alleviation of urinary symptoms such as frequency and urgency.

Option B: Increased prostate size contradicts the mechanism of action of finasteride, which aims to reduce prostate volume over time, thereby improving urinary flow and symptoms associated with BPH.

Option C: Increased blood pressure is not a typical outcome associated with finasteride use. In fact, the medication may help improve urinary symptoms, which can indirectly contribute to better blood pressure management in patients with BPH.

Option D: Increased risk of kidney stones does not correlate with finasteride therapy. The medication does not have a direct impact on kidney stone formation and is primarily focused on reducing prostate size and urinary symptoms.

Takeaways: Effective management of benign prostatic hyperplasia with finasteride leads to decreased urinary frequency and urgency, highlighting the importance of understanding medication effects on prostate health in nursing care.

Option D: A biopsy is the definitive method for diagnosing lung cancer, as it allows for histological examination of tissue samples, confirming the presence of malignant cells. Early detection through biopsy is crucial for effective treatment planning and improving patient outcomes.

Option A: A CT scan provides detailed imaging of the lungs and can identify suspicious lesions, but it does not confirm malignancy without a tissue sample.

Option B: An MRI is not typically used for lung cancer diagnosis; it is more suited for evaluating soft tissue structures and brain lesions.

Option C: An X-ray can reveal abnormalities in the lungs but lacks the specificity needed to diagnose lung cancer accurately, as it cannot differentiate between benign and malignant conditions.

Takeaways: Early diagnosis of lung cancer requires a biopsy for definitive confirmation of malignancy, as imaging techniques like CT scans and X-rays cannot provide tissue diagnosis. Understanding the role of biopsy is essential for effective cancer management and treatment planning in clinical practice.

Option C: Flucytosine should be administered with Amphotericin B to enhance its antifungal efficacy in treating systemic candidiasis. Amphotericin B disrupts fungal cell membranes, allowing flucytosine to penetrate more effectively, leading to synergistic effects against the infection.

Option A: Vitamin D and calcium supplements do not have a role in the treatment of systemic candidiasis and do not interact with flucytosine.

Option B: Fluconazole (Diflucan) is an antifungal agent that is not typically combined with flucytosine for systemic candidiasis, as they have overlapping mechanisms that do not provide synergistic benefits.

Option D: Penicillin G is an antibiotic effective against bacterial infections, not fungal infections, and has no relevance in the treatment of candidiasis or in conjunction with flucytosine.

Takeaways: Administering flucytosine with Amphotericin B enhances antifungal activity by allowing better penetration and efficacy against systemic candidiasis, highlighting the importance of drug synergy in treatment protocols.

Option A: Tamoxifen may increase the risk of venous thromboembolism, which is a critical point for patient education. This medication, a selective estrogen receptor modulator, can lead to hypercoagulability, necessitating awareness of signs and symptoms of thromboembolic events for timely intervention.

Option B: While tamoxifen can cause hot flashes and other menopausal symptoms, this is not the most critical point to emphasize in patient education compared to the risk of venous thromboembolism.

Option C: Although weight gain and fluid retention can occur with tamoxifen, these side effects are less critical than the potential for serious thromboembolic complications that require monitoring and patient awareness.

Option D: Tamoxifen does not decrease the risk of osteoporosis; in fact, it may have a neutral or negative effect on bone density in postmenopausal women, making this statement misleading in the context of patient education.

Takeaways: Understanding that tamoxifen may increase the risk of venous thromboembolism is essential for patient safety and effective management during treatment for breast cancer.

Option C: Pernicious anemia is characterized by a deficiency of intrinsic factor, which is essential for the absorption of vitamin B12. In congenital intrinsic factor deficiency, the newborn cannot absorb vitamin B12, leading to megaloblastic anemia, which is a hallmark of pernicious anemia. This condition results in ineffective erythropoiesis and macrocytic red blood cells.

Option A: Iron deficiency anemia results from inadequate iron levels, leading to microcytic anemia. This condition is unrelated to intrinsic factor or vitamin B12 absorption issues.

Option B: Sideroblastic anemia involves the body's inability to incorporate iron into hemoglobin despite adequate iron levels, leading to the formation of ringed sideroblasts. This is not linked to intrinsic factor deficiency.

Option D: Hemolytic anemia occurs due to the premature destruction of red blood cells, which is not associated with intrinsic factor deficiency or vitamin B12 absorption problems.

Takeaways: Understanding that congenital intrinsic factor deficiency leads to pernicious anemia highlights the critical role of intrinsic factor in vitamin B12 absorption, which is essential for diagnosing and managing megaloblastic anemia effectively.