Correct Answer: A

Rationale: The correct answer is A: Enhances the delivery of quality nursing care. Supervision and delegation are essential in ensuring efficient and effective healthcare delivery. By supervising and delegating tasks appropriately, the head nurse can ensure that staff members are performing their duties competently, which ultimately leads to improved quality of patient care. Supervision helps in monitoring staff performance, providing feedback, and offering guidance when needed. Delegation ensures that tasks are allocated to the right staff members based on their skills and abilities, optimizing the workflow. Choices B, C, and D are incorrect because they do not directly relate to the primary purpose of supervision and delegation, which is to enhance the quality of nursing care through effective oversight and task allocation.

Correct Answer: C

Rationale: The correct answer is C because encouraging the patient to ask questions and express concerns promotes patient empowerment and active participation in self-care. This approach fosters communication, understanding, and collaboration between the nurse and patient, leading to better medication adherence. Choice A is incorrect as it lacks patient involvement. Choice B is helpful but does not necessarily empower the patient. Choice D is directive and does not encourage active participation or empowerment.

Correct Answer: C

Rationale: The correct answer is C: Umbilicus. The nurse begins assessing the uterine fundus at the level of the umbilicus as it is a standard reference point for postpartum fundal height measurement. This location allows for consistency and accuracy in tracking the descent of the uterus back into the pelvic cavity. Starting at the umbilicus also helps in monitoring the involution process and prevents potential errors in fundal height assessment. Symphysis pubis (A) is too low and not typically used as a reference point for uterine fundal assessment. Midline (B) is vague and does not provide a specific anatomical landmark. Sides of the abdomen (D) do not give a standardized starting point for measuring the uterine fundus, leading to potential variability in assessment.

Correct Answer: C

Rationale: The scenario described in the question is consistent with acute cholecystitis, which is inflammation of the gallbladder usually caused by an impacted gallstone in the cystic duct. The key clinical features of acute cholecystitis include fever, chills, right upper quadrant abdominal pain (which can be localized to the right upper quadrant), tenderness in the right upper abdomen, and a positive Murphy's sign (pain and inspiratory arrest upon palpation of the right upper quadrant). This condition is more common in pregnant women due to hormonal changes that can lead to gallstone formation and subsequent inflammation of the gallbladder. Ectopic pregnancy, pelvic inflammatory disease, and ovarian torsion typically present with different clinical features compared to those described in acute cholecystitis.

Correct Answer: C

Rationale: The correct answer is C: Pancreas. The pancreas is responsible for producing digestive enzymes and bicarbonate-rich pancreatic juice. It secretes enzymes like amylase, lipase, and protease to break down carbohydrates, fats, and proteins in the small intestine. The bicarbonate-rich juice helps neutralize stomach acid. The liver (A) produces bile stored in the gallbladder (B), which aids in fat digestion. The spleen (D) is involved in immune function and blood filtration, not digestive enzyme production.