An example of interstitial fluid is:
plasma
blood
packed red cells
bile
The Correct Answer is A
A. Plasma: Interstitial fluid is the fluid that surrounds and bathes the cells in tissues, facilitating nutrient exchange and waste removal. It is essentially derived from plasma, the liquid component of blood, but lacks the high concentration of proteins found in plasma.
B. Blood: Blood is composed of plasma and cells; it’s not considered interstitial fluid.
C. Packed red cells: These are blood cells separated from plasma and not part of interstitial fluid.
D. Bile: Bile is produced by the liver to aid digestion, not part of the interstitial fluid.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. none of the answers are correct: One of the listed answers (isotonic) is
B. hypotonic: Hypotonic fluids cause water to move into cells, potentially leading to cellular swelling.
C. isotonic: Isotonic fluids (e.g., 0.9% NaCl) have the same osmolarity as plasma and expand extracellular volume without causing fluid shifts.
D. hypertonic: Hypertonic fluids draw water out of cells, causing cellular dehydration.
Correct Answer is B
Explanation
A. Respiratory and liver: The liver is not a primary regulator of acid-base balance.
B. Respiratory and kidneys: The lungs eliminate CO₂ (acid), and the kidneys regulate bicarbonate (base).
C. Heart and lungs: The heart circulates blood but does not regulate pH.
D. Liver and kidneys: The liver is not directly involved in pH regulation.
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