Correct Answer: C

Rationale: The primary nursing care delivery model is represented by option C, where the nurse performs all tasks needed by the individual patient to optimize health. In this model, the nurse is responsible for coordinating and providing comprehensive care to a specific group of patients throughout their stay. The primary nurse establishes a close relationship with the patient and takes accountability for their care, ensuring continuity, communication, and personalized attention. This approach emphasizes the importance of the nurse-patient relationship and holistic care delivery, which can lead to improved patient outcomes and satisfaction.

Correct Answer: A

Rationale: Erythema multiforme is a skin condition characterized by the sudden onset of a target-like rash with concentric erythematous rings and central clearing on the trunk and extremities. It typically presents with a distinctive "iris" or "bull's eye" pattern. Erythema multiforme is often triggered by exposure to certain medications, such as antibiotics, anticonvulsants, and other drugs. The rash is usually accompanied by symptoms like fever, malaise, and joint pain. It is important to identify and discontinue the offending medication causing the reaction in cases of drug-induced erythema multiforme.

Correct Answer: D

Rationale: The lesson that can be gained from this scenario is that every protocol must be followed. In this situation, failure to replace the defective electric fan immediately and having a missing fire extinguisher directly led to the fire escalating and causing significant damage. By ensuring that all safety protocols and procedures are followed promptly and consistently, potential hazards and risks can be mitigated or prevented. It is crucial for employees to understand the importance of adhering to established protocols in order to maintain a safe working environment and prevent accidents or emergencies.

Correct Answer: C

Rationale: The first action the nurse should take when a patient post-thyroidectomy develops signs of hypocalcemia is to assess the patient's calcium level. By assessing the patient's calcium level through laboratory testing, the nurse can confirm the presence of hypocalcemia and determine the severity of the condition. This information will guide further interventions, such as administering calcium supplements or notifying the healthcare provider for additional management. It is important to confirm the diagnosis before proceeding with treatment to ensure appropriate and safe care for the patient.

Correct Answer: D

Rationale: If a nurse notices a discrepancy between the surgical count and the number of instruments on the sterile field during surgery, it is crucial to inform the surgical team immediately and initiate a thorough search. Patient safety is of utmost importance, and any missing instruments could potentially pose a risk to the patient. By informing the team and conducting a thorough search, the missing instrument can be located promptly to ensure it is not inadvertently left inside the patient's body. Continuing with the procedure or ignoring the discrepancy without further investigation could lead to serious consequences for the patient's well-being. It is always better to address any discrepancies or concerns during surgery proactively to maintain a high standard of patient care and safety.