TLS Online TPP Program

#Question id: 11941


Under conditions of normal renal function, which of the following is true of the concentration of urea in tubular fluid at the end of the proximal tubule?

#XL - T Zoology
  1. It is higher than the concentration of urea in tubular fluid at the tip of the loop of Henle
  2. It is higher than the concentration of urea in the plasma
  3. It is higher than the concentration of urea in the final urine in antidiuresis
  4. It is lower than plasma urea concentration because of active urea reabsorption along the proximal tubule