Urea

• 10-20mg/dl in the blood

• 100mg/dl is panic level

• Results in the break down or metabolism of proteins

Increase BUN levels

• Hypotension - heart disease medicine (too much)

• Renal artery stenosis (decrease GFR and tubular flow rates)

• Dehydration - norm BP

  • Increased osmotic pressure

  • Decreased flow rate

  • Urea is going back into blood

Decrease BUN

• Impaired ability of the liver to create urea

• Renal failure

  • Diuresis

  • More urea delivered to tubules

Category: Nephrology Notes