A client says, "The doctor says I have a problem with the fluid in my lymph system backing up. Where does lymph fluid come from?" How should the nurse respond?
1. "Lymph is a byproduct of the production of urine."
2. "Lymph fluid is made in your stomach from the fluid you drink."
3. "Lymph fluid comes from the liquid part of your blood."
4. "Lymph is created in your lungs from the water you breathe in with air."
Correct Answer: 3
Rationale 1: Lymph fluid does not come from the kidneys.
Rationale 2: Lymph fluid is not produced from the fluid the client drinks.
Rationale 3: Lymph fluid is created when fluid leaves the circulating blood system at the capillary level and enters lymphatic vessels.
Rationale 4: Lymph fluid is not created in the lungs.
Global Rationale: Lymph fluid is created when fluid leaves the capillaries due to osmotic forces and high pressure in the capillaries. This fluid enters blind-ended lymphatic vessels and slowly travels on its journey through the lymphatic system. As much as 3 liters of fluid per day travel through the highly branched lymphatic vessel network to eventually return to the cardiovascular circulation. Lymph does not come from the kidneys, the fluid the client drinks, or from the lungs.
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