Bio discrete question on Lymph system

[babeexphat]

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If a patient's lymphatic channels have been obstructed by the spread of malignant tumors, which of the following consequences will result?

A. Increased leakage of fluid from the capillaries into extracellular spaces
B. Decreased concentration of proteins in the extracellular spaces
C. Increased fluid pressure in the extracellular spaces
D. Decreased risk of metastasis

ANSWER IS C, I chose A

ARGH can someone explain this to me? I thought :
Increase lymph pressure due to tumor --> increase capillary fluid leakage into Extracellular spaces --> Increased fluid presure in extracellular spaces

But answer basically says:
Increase lymph pressure due to tumor --> Extracellular fluid won't enter lymph pressure --> Increased Exracellular fluid.

GRR. Is the answer crappy? Or am I thinking too far when I think about the capillaries and extracellular spaces?!

 

[babeexphat]

Sorry guys, this is a question on the Kaplan Topical for Lymph/Resp. Is this allowed to be posted in this way?

 

[flodhi1]

If a patient's lymphatic channels have been obstructed by the spread of malignant tumors, which of the following consequences will result?

A. Increased leakage of fluid from the capillaries into extracellular spaces
B. Decreased concentration of proteins in the extracellular spaces
C. Increased fluid pressure in the extracellular spaces
D. Decreased risk of metastasis

ANSWER IS C, I chose A

ARGH can someone explain this to me? I thought :
Increase lymph pressure due to tumor --> increase capillary fluid leakage into Extracellular spaces --> Increased fluid presure in extracellular spaces

But answer basically says:
Increase lymph pressure due to tumor --> Extracellular fluid won't enter lymph pressure --> Increased Exracellular fluid.

GRR. Is the answer crappy? Or am I thinking too far when I think about the capillaries and extracellular spaces?!

The answer is exactly as explained. It's a pretty straight forward question/answer. Don't over think it

 

[andrewsmack05]

No, the answer kaplan has is correct. When blood moves through the capillaries, there is a hydrostatic pressure moving fluid out of the capillaries. When fluid comes back into the there is a plasma colloid osmotic pressure which pulls fluid back into the blood. The excess fluid that is not reabsorbed goes into the lymphatic system. So if a patients lymphatic channels have been obstructed by the spread of malignant tumors, then they wouldnt allow the passage of fluid, which in turn, would build up pressure. Hope this helps!

 

[ThirdEye]

Tumors are cells, not proteins, and thus will not alter the gradient.