The graph below depicts the change in tubular fluid concentration of various substances along the length of the proximal tubule plotted as the tubular fluid-to-plasma concentration ratio (TF/P)
Thus the TF/P = 1 for a substance that is at the same concentration in the tubular fluid and plasma (all substances that are freely filtered have a TF/P equal to 1 at the glomerulus).
Match the following substances to the appropriate TF/P curve.
Na+
ANS: C
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Fill in the blank(s) with correct word
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