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Table 2 Proposed parameters for delivered dose assessment

From: Challenges and pitfalls when implementing renal replacement therapy in the ICU

Parameter

Measurement

Tools

Solute

  

Very small waste products

K+, Na+, phosphate

Blood levels of K, Na, PO4

  

Phosphate clearance

 

H-

pH, HCO3 AG, SIDeff, SIDapp, SIG, Delta gap, Delta ratio

Small waste products

Urea

Clearance (ml/minute)

  

EKR (ml/minute)

  

Standard Kt/V

Middle sized molecules

Serum β2-microglobulin

β2-Microglobulin clearance

Fluid

Weight (kg)

Weight changes

 

Inputs-outputs

Fluid accumulation

 

Bioelectrical impedance

Fluid overload

 

BNP

Bioimpedance vector analysis

  

BNP profile

  1. AG anion gap, BNP brain natriuretic peptide, EKR equivalent urea clearance, H- ions, HCO 3 bicarbonate, K potassium, Na sodium, PO 4 phosphate, SIDapp apparent strong ion difference, SIDeff effective strong ion difference
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Critical Care

ISSN: 1364-8535