Correct Answer: C

Rationale: The theory of Nursing as Caring was developed by Dr. Jean Watson, a renowned nurse theorist and professor. Watson's Theory of Human Caring focuses on the importance of the nurse-patient relationship, emphasizing the significance of caring in promoting healing and promoting holistic well-being. This theory emphasizes the humanistic aspects of nursing care and highlights the nurse's role in fostering a caring environment that encompasses physical, emotional, social, and spiritual dimensions. Watson's theory emphasizes the importance of empathy, compassion, and authentic presence in nursing practice, making it a valuable framework for guiding nursing care and promoting healing outcomes.

Correct Answer: A

Rationale: The patient's presentation of sudden-onset, painless vision loss in the right eye, along with a cherry-red spot at the macula and attenuated retinal vessels, is classic for central retinal artery occlusion (CRAO). In CRAO, there is a sudden blockage of the central retinal artery, leading to ischemia of the retina. The cherry-red spot represents the preserved choroid blood flow against the ischemic retina. The attenuated retinal vessels are a result of decreased blood flow in the retinal circulation. This condition is considered an ophthalmic emergency and requires immediate evaluation and management to prevent permanent vision loss.

Correct Answer: A

Rationale: Assisting the mother into a hands-and-knees position should be prioritized to facilitate fetal rotation and optimize labor progress in the case of persistent occiput posterior fetal position. This position helps in promoting fetal rotation to a more favorable position for delivery by allowing the baby's head to move into the anterior position. It can help alleviate back pain and may help reduce the duration of labor. This simple maneuver can sometimes correct the malposition without the need for interventions like instrumental delivery. It is a non-invasive and effective technique that can be easily implemented by healthcare providers to support the progression of labor.

Correct Answer: A

Rationale: The nurse should prioritize using sterile technique during the tracheostomy tube change to ensure patient safety. Tracheostomy procedures involve a direct entry into the airway, making it crucial to prevent infection and reduce the risk of complications. Sterile technique, including proper hand hygiene, wearing sterile gloves, and using sterile equipment, helps minimize the introduction of pathogens into the patient's airway, reducing the risk of infection. By maintaining a sterile field, the nurse can protect the patient from potential harm and promote a successful outcome of the tracheostomy tube change.

Correct Answer: C

Rationale: When a patient expresses concern about a medication looking different from what they had taken before, it is crucial for the nurse to verify the original prescription to ensure that the correct medication is being administered. Checking the original medication prescription will help the nurse confirm if there have been any changes or errors in the medication orders. This step is essential for patient safety and to prevent any potential medication errors. It is important to prioritize patient safety and well-being in such situations, and verifying the prescription is the appropriate action to take in this case.