Correct Answer: A

Rationale: Multiple myeloma is a type of cancer that develops in plasma cells, which are a type of white blood cells involved in the body's immune response. As a result, multiple myeloma primarily affects the hematologic system, which includes the blood and blood-forming tissues. This cancer typically arises in the bone marrow and can lead to an overproduction of abnormal plasma cells, which can crowd out healthy blood cells. Symptoms of multiple myeloma can include anemia, bone pain, recurrent infections, fatigue, and kidney problems, all of which are related to the hematologic system.

Correct Answer: A

Rationale: Reporting observed signs of child abuse to the Department of Social Welfare Development (DSWD) is the best nursing action in cases of suspected child abuse. DSWD is the government agency tasked with protecting the welfare of children and families. They have the necessary authority and resources to investigate and intervene in cases of child abuse. Reporting to DSWD ensures that professional social workers and experts will step in to assess the situation, provide necessary interventions, and ensure the safety of the child. It is important to involve the appropriate authorities who are trained to handle cases of child abuse effectively. Reporting to the DSWD helps in safeguarding the well-being of the child and taking the necessary steps to address the situation appropriately.

Correct Answer: C

Rationale: In a pregnant patient with suspected pulmonary embolism (PE), the most appropriate imaging modality for evaluation is contrast-enhanced computed tomography (CT) pulmonary angiography. This imaging technique has been shown to be safe for the fetus when necessary, especially if the benefits of making a diagnosis outweigh the minimal risks associated with radiation exposure. It provides quick and accurate detection of PE with high sensitivity and specificity.

Correct Answer: A

Rationale: To help the students better understand the anatomy of the breast, it is crucial to provide visual aids that display both external and internal views of the breast. By sharing various pictures of the breast, students can visually learn about the structure, shape, location of different components, such as lobes, ducts, glands, and lymph nodes. Visual aids enhance the learning experience by providing a clear representation of the complex anatomical features of the breast, aiding in retention and comprehension. This approach can effectively supplement theoretical knowledge with practical visual references, facilitating a comprehensive understanding of breast anatomy.

Correct Answer: D

Rationale: In the scenario described, with the patient having an acute exacerbation of chronic kidney disease (CKD) leading to hyperkalemia and metabolic acidosis, the priority intervention to manage the metabolic derangements is to perform emergent hemodialysis for potassium removal. Hemodialysis is the most effective and rapid method to lower dangerously high potassium levels in the blood. It is crucial in cases of severe hyperkalemia where other measures such as medications or dietary modifications may not be sufficient or fast enough to correct the elevated potassium levels. Additionally, hemodialysis can also help in improving metabolic acidosis by removing waste products and excess electrolytes from the blood. Overall, emergent hemodialysis is the most appropriate intervention for managing the acute metabolic abnormalities in this critically ill patient.