ATI Oncology Questions

Correct Answer: C

Rationale: Superior vena cava syndrome (SVCS) occurs when the superior vena cava, the large vein that carries blood from the upper body to the heart, becomes compressed or obstructed, often by a tumor or enlarged lymph nodes, typically in cancers like lung cancer or lymphoma. The obstruction leads to increased venous pressure and reduced blood flow, resulting in swelling and edema in areas drained by the superior vena cava. Periorbital edema (swelling around the eyes) is one of the earliest signs of SVCS. This occurs because the impaired venous return causes fluid to accumulate in the soft tissues of the face, especially around the eyes. As the condition progresses, facial swelling can worsen, and other symptoms develop.

Correct Answer: B

Rationale: Difficulty swallowing (dysphagia) following radiation therapy to the neck area is a significant concern because it can indicate serious complications such as esophageal stricture, inflammation, or damage to the surrounding tissues, including the esophagus. This can lead to malnutrition, dehydration, or aspiration, all of which require prompt intervention. Radiation therapy can cause irritation and scarring in the esophageal and throat tissues, which may progressively worsen if not treated. Therefore, dysphagia should be addressed immediately to prevent further complications.

Correct Answer: D

Rationale: Multiple sex partners are not a recognized risk factor for breast cancer. Breast cancer is primarily influenced by hormonal, genetic, and environmental factors, not sexual activity or the number of sexual partners. Established risk factors for breast cancer include family history, hormonal factors such as early menarche, late menopause, and nulliparity (having no children), as well as certain environmental exposures.

Correct Answer: C

Rationale: Patients with myelodysplastic syndrome (MDS) have a dysfunctional bone marrow that leads to ineffective blood cell production, including white blood cells, which are crucial for fighting infections. As a result, they are at high risk for infections. Even a slight elevation in temperature, such as 37.5�C (99.5�F), could be an early sign of infection in an immunocompromised patient. Early detection and treatment of infections are critical in MDS patients, as infections can quickly become severe or life-threatening due to their compromised immune system.

Correct Answer: A

Rationale: Epoetin alfa is a medication used to treat anemia, particularly anemia related to chemotherapy or chronic kidney disease. It stimulates the bone marrow to produce more red blood cells, which increases the hemoglobin level. Monitoring hemoglobin is the best way to assess the effectiveness of epoetin alfa, as an increase in hemoglobin indicates that the body is producing more red blood cells and the anemia is improving.