ATI Oncology Questions

Correct Answer: D

Rationale: A pelvic ultrasound requires the client to have a full bladder because the bladder acts as a window through which pelvic organs, such as the uterus and ovaries, can be visualized more clearly. The full bladder pushes the intestines out of the way and provides a better acoustic pathway for the ultrasound waves. Without this, the pelvic organs might be obscured, and the images would be less accurate.

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: Malignant (cancer) cells often express tumor-specific antigens (TSAs), which are proteins or markers on the surface of cancer cells that are not found on normal cells. These antigens are produced due to genetic mutations in cancer cells and can sometimes be used to help the immune system recognize and attack cancerous cells. Tumor-specific antigens play a key role in cancer diagnosis, monitoring, and targeted therapies.

Correct Answer: B

Rationale: In oncology patients, particularly those undergoing chemotherapy or radiation therapy, myelosuppression (the decrease in bone marrow activity that leads to reduced white blood cells, red blood cells, and platelets) increases the risk of infection. Maintaining skin integrity is crucial because the skin acts as the body's first line of defense against infections. If the skin becomes compromised, such as through radiation burns, rashes, or breakdowns, it provides a potential entry point for pathogens, increasing the risk of infection. Since infections in oncology patients can quickly become severe due to their weakened immune systems, maintaining skin integrity is a critical intervention to reduce infection risk, especially for patients who are immunosuppressed.

Correct Answer: B

Rationale: A platelet count of 9800/mm� indicates severe thrombocytopenia, placing the client at high risk for bleeding, even with minor trauma or injury. Instructing the client to call for help before getting out of bed ensures they receive assistance with mobility, which reduces the risk of falls or injuries that could lead to serious bleeding. Preventing any activity that could result in trauma is crucial when managing clients with very low platelet counts.