Correct Answer: D

Rationale: Rationale: D is correct because cleanliness helps prevent infections. Washing hands and keeping breasts clean reduces the risk of mastitis and abscesses. A is incorrect because alternating breasts is a common practice in breastfeeding. B is incorrect as frequent nursing helps maintain milk supply and prevent engorgement, reducing the risk of mastitis. C is incorrect as breastfeeding itself is not a cause of mastitis or abscess; stopping abruptly can lead to further complications like engorgement.

Correct Answer: C

Rationale: The correct answer is C: Weak, slow pulse. Circulatory overload typically presents with signs of fluid volume excess, such as moist gurgling respirations, distended neck veins, dyspnea, and coughing. A weak, slow pulse is not a characteristic sign of circulatory overload, as the heart rate may actually be elevated due to the increased fluid volume. Therefore, a weak, slow pulse would not be likely to occur in this scenario.

Correct Answer: A

Rationale: The correct answer is A: Peripheral vision. When testing visual fields, the nurse evaluates the ability to see objects outside the direct line of sight, which is indicative of peripheral vision. Peripheral vision helps detect objects and movement in the side vision. Distance vision (B) refers to the ability to see clearly at a distance, while near vision (C) pertains to close-up vision. Central vision (D) is essential for focusing on details and seeing straight ahead. Therefore, A is the correct choice as it specifically pertains to the assessment of visual fields.

Correct Answer: C

Rationale: The correct answer is C because Neomycin is given preoperatively to decrease and retard the growth of normal bacteria in the intestines. This helps reduce the risk of infection during surgery by minimizing the number of bacteria present in the colon. Options A, B, and D are incorrect because Neomycin is not given to prevent infection postoperatively, eliminate the need for preoperative enemas, or treat cancer of the colon. The main purpose of administering Neomycin in this scenario is to create a sterile surgical field by reducing the normal flora in the intestines.

Correct Answer: B

Rationale: The correct answer is B, "Fluid volume deficit R/T uncontrolled vomiting." This option correctly identifies the cause of the fluid volume deficit as uncontrolled vomiting, which is a common reason for fluid loss. The nursing diagnosis should always reflect the underlying cause of the issue. A is incorrect as "furrow tongue" is not a recognized medical term related to fluid volume deficit. C is incorrect because dehydration is not typically related to subnormal body temperature unless it is severe. D is incorrect as incessant vomiting is more specific to the cause, but the term "dehydration" should be used instead of "fluid volume deficit" in this context. In summary, option B is the appropriate nursing diagnosis as it accurately links the fluid volume deficit to the cause of uncontrolled vomiting.