Table of permselectivity for different substances

This is a table of permselectivity for different substances in the glomerulus of the kidney in renal filtration.

Substance	Approximate molecular mass (g/mol)	Effective molecular radius (nm)	conc. in ultrafiltrate / conc. in blood plasma
sodium	23	0.1	1.0
potassium	39	0.14	1.0
chloride	35.5	0.18	1.0
water	18	0.15	1.0
urea	60	0.16	1.0
glucose	180	0.33	1.0
sucrose	342	0.44	1.0
polyethylene glycol	1,000	0.70	1.0
inulin	5,200	1.48	0.98
lysozyme	14,600	1.90	0.8
myoglobin	16,900	1.88	0.75
lactoglobulin	36,000	2.16	0.4
egg albumin	43,500	2.80	0.22
Bence Jones protein	44,000	2.77	1.0
hemoglobin	68,000	3.25	0.03
serum albumin	69,000	3.55	<0.01

References

^ Walter F. Boron, Emile L. Boulpaep (2005). Medical Physiology: A Cellular And Molecular Approach. Elsevier/Saunders. ISBN 1-4160-2328-3. Page 761

Physiology of the kidneys and acid–base physiology

Creating urine

Secretion	Clearance Pharmacokinetics Clearance of medications Urine flow rate
Reabsorption	Solvent drag Sodium Chloride Urea Glucose Oligopeptides Protein
Filtration	Renal blood flow Ultrafiltration Countercurrent exchange Filtration fraction

Other functions

Hormones	Antidiuretic hormone Aldosterone Atrial natriuretic peptide Renin Erythropoietin Calcitriol Prostaglandins
Fluid balance	Body water: Intracellular fluid/Cytosol Extracellular fluid (Interstitial fluid Plasma Transcellular fluid)
Acid–base balance	Darrow Yannet diagram Base excess Davenport diagram Anion gap (Delta ratio) Winters's formula Buffering Bicarbonate buffer system Respiratory compensation Renal compensation

Assessment and measurement

Other

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