Lab Values related to the Kidney

• Glomerular Filtration Rate 


  Rate of blood flow through the kidneys
• Glomerular Filtration Rate

  Normal: 90-120 mL/min
• Glomerular Filtration Rate

  Causes:

  • Decreased - kidney dysfunction
  • Increased - Pregnancy
• Creatinine 


  End product of muscle metabolism; solely filtered from the blood via glomerulus
• Creatinine

  Normal value: 0.6 - 1.2 mg/dL
• Blood Urea Nitrogen 


  Normal waste product resulting from the breakdown of proteins
• Blood Urea Nitrogen

  Normal Value: 12-20 mg/dL
• Urine Specific Gravity 


  A measure of the kidney's ability to excrete or conserve water
• Urine Specific Gravity

  Normal Value: 1.005-1.030
• Urine Output 


  The amount of urine a person excretes from their bladder via the urethra
• Urine Output

  Normal: 30-60 mL/hr