What could cause an enlarged lymph node?
A)Bone marrow tumor
B)Infection
C)Allergic reaction
D)Sluggish blood flow

Question

Quizplus · Accepted Answer

Infections are a common cause of enlarged lymph nodes. When the immune system fights an infection, lymph nodes can become swollen as they produce immune cells to help fight the infection.

Answer: A, C 
 While less common than infections, bone marrow tumors or cancers and allergic reactions can also cause enlarged lymph nodes. Bone marrow tumors can cause lymph nodes to become enlarged as abnormal cells travel through the lymphatic system. Allergic reactions can cause lymph nodes to become enlarged as the immune system responds to the allergen.

Answer: D 
 Sluggish blood flow is not a known cause of enlarged lymph nodes.

What Could Cause an Enlarged Lymph Node