Correct Answer: C

Rationale: The most likely causative agent in this scenario is Borrelia burgdorferi, which is the bacterium responsible for causing Lyme disease. The classic presentation of Lyme disease includes fever, malaise, and a skin lesion resembling a "bull's eye" rash, known as erythema migrans. This rash typically appears at the site of a tick bite. If left untreated, Lyme disease can progress to involve multiple organ systems and lead to more severe complications. Plasmodium falciparum is the causative agent of malaria, which typically presents with symptoms such as fever, chills, and fatigue, but it does not cause a "bull's eye" rash. Trypanosoma cruzi is the parasite responsible for Chagas disease, which presents with symptoms such as fever, swelling at the site of entry (typically the bite wound), and enlarged lymph nodes, but it does not

Correct Answer: B

Rationale: The assessment of a patient who has ingested poison must include determining the poison ingested and the amount (I), the time from ingestion and the signs and symptoms (II), as well as the weight of the patient (III). These factors are essential in evaluating the severity of the poisoning and determining the appropriate treatment plan. However, the patient's immunization history (IV) is not directly relevant to the assessment of ingested poison and thus is not essential in this context.

Correct Answer: D

Rationale: The ethical principle of beneficence, which is the basis of every nursing action in all work settings, emphasizes the importance of doing good at all times for the benefit of the patient. Nurses are expected to act in the best interest of their patients and strive to promote their well-being and welfare. This principle guides nurses to provide care that is compassionate, effective, and in line with the patient's needs and preferences. By prioritizing the good of the patient in all actions and decisions, nurses uphold the principle of beneficence and demonstrate their commitment to promoting positive outcomes for those under their care.

Correct Answer: A

Rationale: Atopic dermatitis is a chronic, pruritic inflammatory skin condition that typically presents in individuals with a personal or family history of asthma and allergic rhinitis (hay fever). The characteristic presentation includes erythematous papules, vesicles, and excoriations on the flexural surfaces of the elbows and knees. This type of dermatitis is commonly seen in patients with atopy, which refers to a genetic predisposition to develop allergic diseases like asthma, hay fever, and eczema. Therefore, given the patient's personal history of asthma and hay fever along with the described rash distribution and appearance, atopic dermatitis is the most likely diagnosis.

Correct Answer: C

Rationale: The nurse does not need to determine the age of Excel when planning for Sonny's oxygen therapy. This information is irrelevant to the specific care requirements of Sonny's oxygen therapy. Sonny's age, medical history, respiratory status, and oxygen needs are the key considerations in planning for his oxygen therapy. The nurse should focus on factors such as the need for a humidifier, length of tubing, and the manner of administering oxygen (continuous or intermittent) to ensure effective and safe delivery of oxygen therapy to Sonny.