Question 31: Were renal assessments conducted?
Indicate if urine albumin, serum creatinine, or GFR assessments were conducted at the time of evaluation for this reporting period. If these renal assessments were performed, report Yes. If these renal assessments were not performed or no information is available to determine if they were performed since the date of last report, select No or Unknown.
Questions 32 – 33: Urine albumin (if multiple, report the most recent tested)
Indicate whether urine albumin was measured in the current reporting period. If measured, select Known and report the laboratory value and unit of measure documented on the laboratory report. If urine albumin was assessed multiple times within the reporting period, report the most recent results. If urine albumin was not measured or if no information is available to determine if urine albumin was measured in the current reporting period, select Unknown.
If the urine albumin is < 30 mg / g, report the urine albumin value as “29 mg / g” (29,000 mg / kg).
Questions 34 – 35: Serum creatinine (if multiple, report the most recent tested):
Indicate whether the serum creatinine was measured in the current reporting period. If measured, select Known and report the laboratory value and unit of measure documented on the laboratory report. If serum creatinine was measured multiple times in the reporting period, report the most recent results. If serum creatinine was not measured or if no information is available to determine if serum creatinine was measured in the current reporting period, report Unknown.
Questions 36 – 37: Glomerular filtration rate (GFR) (if multiple, report the most recent tested):
The glomerular filtration rate (GFR) estimates how much blood passes through the glomeruli each minute and is used to check how well the kidneys are working.
Indicate whether the GFR was measured in the current reporting period reporting period. If measured, select Known and report the laboratory value and unit of measure documented on the laboratory report. If the GFR was measured multiple times in the reporting period, report the most recent results. If the GFR was not measured or if no information is available to determine if the GFR was assessed in the current reporting period, select Unknown.
GFR may be reported to the CIBMTR as “actual” or “calculated.” If your center’s laboratory does not calculate the actual GFR value, the following equations may be used to determine the calculated value.
Cockcroft-Gault Equation
GFR = [(140 – age) x Wt] / (72 x Cr)
- GFR_cg = Glomerular Filtration Rate (Cockcroft) (mL / min)
- Age = Patient Age (years)
- Sex = Gender (Male)
- If female, multiply result by 0.85
- Wt = Body Weight (kg)
- Cr = Creatinine (S, mg / dL)
An online calculator for this equation can be found here: https://www.kidney.org/professionals/kdoqi/gfr_calculatorCoc
Bedside Schwartz Equation
eGFR = K x H / Cr
- H = Height (cm)
- Cr = Creatinine (S, mg / dL)
- K =
- 0.33 for preemies
- 0.45 for infants to 1 year
- 0.55 for 1 year to 18 years for females
- 0.55 for 1 year to 13 years for males
- 0.70 for adolescent to 18 years for males
An online calculator for this equation can be found here: https://www.kidney.org/professionals/KDOQI/gfr_calculatorPed
If the laboratory report indicates the GFR as a range, report the average. Example, the laboratory report indicates GFR is 80 – 120, report “100.”
If the GFR value is expressed as “> X,” report the value as “X+1.” Example, the laboratory report indicates the GFR is > 120, report “121.”
If the GFR value is reported as “< X”, report “X-1.” Example, the laboratory report indicates the GFR is < 80, report “79.”
Section Updates:
| Question Number | Date of Change | Add/Remove/Modify | Description | Reasoning (If applicable) |
|---|---|---|---|---|
| Q36 – 37 | 5/5/2021 | Add | The Beside Schwartz Equation was added to questions 36 – 37 | Equation added to calculate GFR for pediatric recipients |
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