Moderate

GFR is increased when________________?

Correct answer: D. Increased renal blood flow

  • A. Plasma oncotic pressure is increased
  • B. Glomerular hydrostatic pressure is decreased
  • C. Tubular hydrostatic pressure is increased
  • D. Increased renal blood flow

Explanation

An increase in renal blood flow can increase glomerular capillary filtration and hence GFR, whereas increased plasma oncotic, tubular hydrostatic, or reduced glomerular hydrostatic pressure opposes filtration. Although autoregulation limits changes over the normal range, option d is the best choice.

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