Tuesday, July 21, 2020

Normal water balance

Q: What are the components of water balance in a normal adult?

Answer: The basic understanding of hemodynamic cannot be understood without knowing the baseline normal components of water balance. A normal adult requires an obligatory minimum water balance of 1600 mL per day to keep his or her hemodynamic intact.

Ins:

  • Ingested water = 500 mL 
  • Water in food = 800 mL 
  • Water from oxidation = 300 mL 

Outs:
  • Urine = 500 mL 
  • Skin = 500 mL 
  • Respiratory tract  = 400 mL 
  • Stool = 200 mL

#hemodynamic


Reference:

1. Roumelioti ME, Glew RH, Khitan ZJ, et al. Fluid balance concepts in medicine: Principles and practice. World J Nephrol. 2018;7(1):1-28. doi:10.5527/wjn.v7.i1.1

2. Rohrscheib M, Rondon-Berrios H, Argyropoulos C, Glew RH, Murata GH, Tzamaloukas AH. Indices of serum tonicity in clinical practice. Am J Med Sci. 2015;349:537–544.

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