Correct Answer: A

Rationale: The correct answer is A: To stimulate bone growth. Estrogen and progesterone are hormones that play a crucial role in maintaining bone density and promoting bone growth. In postmenopausal women or individuals with conditions like aplastic anemia, bone health can be compromised. Estrogen helps in preventing bone loss and maintaining bone strength, while progesterone also contributes to bone formation. Therefore, in this scenario, these medications are likely prescribed to help improve bone health in the woman with aplastic anemia. Incorrect choices: B: Estrogen and progesterone do not directly enhance sodium and potassium levels. C: Estrogen and progesterone do not regulate fluid balance absorption directly. D: Estrogen and progesterone do not specifically promote utilization and storage of fluids.

Correct Answer: B

Rationale: The correct answer is B: helicobacter pylori infection. This bacterium is a major cause of peptic ulcers by weakening the protective mucous layer of the stomach and duodenum. Research has shown a strong association between H. pylori infection and peptic ulcer development. Genetic defects in the gastric mucosa (choice A) are not a proven cause of peptic ulcers. While a high-fat diet (choice C) can exacerbate symptoms, it is not the primary cause. Work-related stress (choice D) may exacerbate symptoms but is not a direct cause of peptic ulcers. Therefore, choice B is the most supported and logical answer based on current research findings.

Correct Answer: A

Rationale: The correct answer is A: Filtration. Albumin is a large protein molecule that cannot pass through the semipermeable membrane of blood vessels. Therefore, the shift of body fluids associated with intravenous albumin administration occurs through the process of filtration, where fluid moves across the membrane due to a pressure difference. Osmosis (B) involves the movement of water across a semipermeable membrane, which is not the case for albumin. Diffusion (C) is the movement of molecules from an area of high concentration to low concentration, which is not how albumin moves. Active transport (D) requires energy to move substances against a concentration gradient, which is not the mechanism for albumin movement in the body.

Correct Answer: A

Rationale: Step 1: Regular aerobic exercise helps lower blood pressure by improving heart health and circulation. Step 2: Exercise reduces stress and promotes weight loss, factors that contribute to hypertension control. Step 3: Alcohol consumption can raise blood pressure and should be limited or avoided. Step 4: Smoking and using low-tar cigarettes can still raise blood pressure and have other negative health effects. Step 5: Daily multivitamin supplements do not directly impact blood pressure control.

Correct Answer: C

Rationale: The correct answer is C because firm skin turgor indicates adequate hydration, a key goal of fluid resuscitation in diarrhea management. Firm skin turgor reflects the body's fluid balance and hydration status. When fluid resuscitation is successful, the patient's skin turgor improves due to replenished fluid levels. Choices A, B, and D are incorrect as they do not directly assess hydration status or the effectiveness of fluid resuscitation. Passing formed stools, decrease in stool frequency, and absence of perianal burning may be positive outcomes in diarrhea management, but they do not specifically indicate successful fluid resuscitation.