PreESRD Calculator

© 1997 Stephen Z. Fadem, M.D., FACP All rights reserved


Compute Mean Arterial Pressure
Systolic pressure
mm/Hg
Diastolic pressure
mm/Hg
MAP
mm/Hg

 Calculating PreESRD Parameters
1. Complete form below
2. 
 3. 
 4.  

After calculating, view a result by selecting
from the drop-down menu, and pressing "Go"

Serum Creatinine BUN mg/dl
Urine Creatinine gm/24 hrs Body Wt (kgs)
Age
Body Ht (cm)
Serum Albumin UUN gm/24 hrs
Hematocrit Total CO2

   Calculate parameters
To convert to or from SI units, please use the handy PERL script,

Results . Males

Females
1/cr . .
BSA
Dubois & Dubois
. .
TBW
Watson
.
Ccreatinine
Creatinine Clearance
. .
Corrected Ccreatinine
normalized to 1.73m2
. .
Weekly corrected
Ccreatinine
liters/1.73m2
 .  .
Kp urea
Urea Clearance
. .
Corrected (TBW) Kp urea
normalized to V =35 l
.
Corrected Kp urea
normalized to 1.73m2
. .
Estimated Mean GFR
(Kp urea+Ccr)/2
. .
Corrected Mean GFR
normalized to 1.73m2
. .
MDRD GFR (White)
JASN 8:141A, 97
 
MDRD GFR (Black)
JASN 8:141A, 97
 
Cockcroft-Gault GFR
Nephron, 16:31-41, 1976
 
Gut creatinine loss (mg/24 hr)
.36*scr (mg/dl)*wt(kg)
Nephron 21:248-254, 1976
. .
Total creatinine Appearance (mg/24 hr)
Gut + urine creatinine loss
. .
Lean Body Mass
(kg)
Fat-free, edema-free body mass=.029*total creatinine production in mg/day+7.38
Am J Clin Nutr 29:1359-1566,76
. .
Lean Body Mass/Body Mass . .
GU Urea appearance (gm/day) .
PCR
9.35*GU+11
.
nPCR
PCR (g/day)/(mean V/.058)
.
PNA (Kopple)
PNA=10.76*(.69*UNA+1.46)
.
nPNA
PNA(g/day)/(V/.58)
.
Weekly Krtv .

Pounds - Kilograms - Input value to
convert then click anywhere
outside the box
Pounds Kilograms

Convert feet & inches back and forth from centimeters
ftin
to
Inchesto
Centimeters

Centimeters to
Inchesto
ftin

 


Cockroft D, Gault MH. Nephron, 16:31-41, 1976

 

Stage1 (Corrected Ccr > 25 cc/min, albumin normal) - Should try to prevent renal disease progression
Stage 2a (Corrected Ccr =20 to 25 cc/min, albumin normal, Hct <37 Male, Hct <33 Female) - Consider early placement of AV fistula
Stage 2b (GFR=17 to 20 cc/min, albumin = or <4.0 but not decreasing) - Access should be in place
Stage 3 (Corrected Ccr 14 to 20 cc/min Krt/V= < 2.0 AND albumin = or < 4.0 and decreasing and/or nPNA<.8 g/d/kg) - Start PD to bring Krt/V to 2.0
Stage 4 (ESRD- Corrected Ccr 7 - 14 and Krt/V<2.0 AND albumin <4.0 and decreasing at 0.1 gm/mo and/or nPNA <.8) - Renal replacement therapy
 

NKF-DOQI

Peritoneal Dialysis
More complete
BSA &
TBW Calculations

NKF-DOQI

Hemodialysis

NKF-DOQI

Vascular Access
Physician Resources
Links
Journals

NKF-DOQI

Anemia