Lymph fluid is:
Red, like blood
Formed when fluid is filtered across the subclavian veins into the tissue spaces
Formed from tissue fluid
Pumped by the left heart into systemic circulation
The Correct Answer is C
A. Red, like blood:
Lymph is typically clear to pale yellow; it lacks red blood cells, which give blood its red color.
B. Formed when fluid is filtered across the subclavian veins into the tissue spaces:
Lymph forms from interstitial (tissue) fluid, not from fluid filtered from veins into tissues.
C. Formed from tissue fluid:
Lymph originates as interstitial fluid that enters lymphatic vessels and is transported back into the circulatory system.
D. Pumped by the left heart into systemic circulation:
Lymph is not pumped by the heart; it moves through the lymphatic system via muscle contractions and valves.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Lymph nodes:
Lymph nodes are structures that filter lymph and house immune cells, but they are not B or T cells themselves.
B. Lymphocytes:
B and T cells are types of lymphocytes, which are white blood cells involved in the immune response.
C. Tonsils:
Tonsils are lymphoid tissue that helps trap pathogens but are not cells.
D. Antibodies:
Antibodies are proteins produced by B cells, not cells themselves.
Correct Answer is B
Explanation
A. Potassium
Potassium relates to fluid/electrolyte balance, not directly to infection.
B. WBC count
An elevated white blood cell (WBC) count indicates the body is mounting an immune response, suggesting infection.
C. BUN
BUN measures kidney function and hydration status, not infection.
D. RBC count
RBCs relate to oxygen-carrying capacity (anemia, blood loss), not infection.
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