A nurse knows that the liver is a common site for metastasis from other primary cancers due to:
anatomic placement
portal hypertension
It’s blood supply
presence of tumor markers
The Correct Answer is C
A. While the liver is centrally located and plays a significant role in filtering blood, its location alone does not directly explain why it's a common site for metastasis.
B. Portal hypertension refers to increased pressure within the portal vein system, usually due to liver disease, not metastasis.
C. The liver has a dual blood supply from the portal vein and the hepatic artery, which makes it a key organ for filtering blood coming from the digestive tract. This provides a route for cancer cells from the gastrointestinal tract and other organs to travel to the liver, making it a common site for metastasis.
D. Tumor markers are substances that may be found in higher amounts in the blood or tissues of people with cancer. However, they do not directly explain why the liver is a common site for metastasis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["480"]
Explanation
Convert time to hours:
25 minutes ÷ 60 = 0.4167 hours
Step 2:
Use the formula:
Rate (mL/hr) = Volume (mL) ÷ Time (hr)
Rate = 200 mL ÷ 0.4167 hr ≈ 480 mL/hr
Correct Answer is D
Explanation
A. Checking the skin monthly for changes is a recommended practice for detecting early signs of skin cancer, such as new moles or changes to existing ones.
B. Avoiding the use of tanning booths is important because artificial tanning increases the risk of skin cancer, particularly melanoma.
C. Using sunscreen even on cloudy days is advised, as UV rays can penetrate clouds and still harm the skin.
D. A high-fiber diet, while beneficial for overall health, does not specifically reduce the risk of developing skin cancer. Risk reduction for skin cancer is more related to sun protection and avoiding UV radiation exposure.
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