Correct Answer: B

Rationale: The correct answer is B: Gastritis may cause bleeding. In patients with hiatal hernia, gastritis can occur due to the reflux of stomach acid into the esophagus. This gastritis can lead to gastrointestinal bleeding, resulting in anemia. Choice A is incorrect because iron absorption is not necessarily reduced in hiatal hernia. Choice C is incorrect as iron stores turnover rate is not directly related to the development of anemia in this context. Choice D is incorrect as an aversion to iron-rich foods is not a common reason for anemia in patients with hiatal hernia.

Correct Answer: A

Rationale: The correct anatomical position for auscultating the murmur of aortic stenosis is the second intercostal space, right sternal border. This is where the aortic valve is best auscultated, and the murmur of aortic stenosis is heard most clearly. Choices B, C, and D are incorrect as the murmur of aortic stenosis is best heard at the second intercostal space on the right side of the sternum.

Correct Answer: D

Rationale: The correct answer is D because feeding the infant with a rubber-tipped syringe reduces the risk of injury to the surgical site and prevents aspiration. Choice A is incorrect because feeding in the recumbent position can increase the risk of aspiration. Choice B is incorrect as Betadine is not recommended for wound care near the mouth due to its potential toxicity if ingested. Choice C is incorrect because placing the infant in the prone position after feeding can increase the risk of regurgitation and aspiration.

Correct Answer: A

Rationale: Obesity is a primary factor that affects blood pressure. Excess body weight, especially when concentrated around the abdomen, can increase the risk of hypertension (high blood pressure) as it puts extra strain on the heart to pump blood around the body. This can lead to various cardiovascular complications and other health issues. Managing weight through a healthy diet and regular physical activity can help control blood pressure levels. Age, stress, and gender can also influence blood pressure, but obesity has a more direct and significant impact on increasing blood pressure levels compared to the other factors listed.

Correct Answer: A

Rationale: Obesity is a primary factor that affects blood pressure. Excess body weight, especially when concentrated around the abdomen, can increase the risk of hypertension (high blood pressure) as it puts extra strain on the heart to pump blood around the body. This can lead to various cardiovascular complications and other health issues. Managing weight through a healthy diet and regular physical activity can help control blood pressure levels. Age, stress, and gender can also influence blood pressure but are not primary factors like obesity.