Total reviews 410
Total reviews 410
Tests Included: 5
Est. 1-3 (business days) Turnaround
Specimen type: Blood
Quest Diagnostics Location
The BUN/Creatinine ratio is useful in the differential diagnosis of acute or chronic renal disease. Reduced renal perfusion, e.g., congestive heart failure, or recent onset of urinary tract obstruction will result in an increase in BUN/Creatinine ratio. Increased urea formation also results in an increase in the ratio, e.g., gastrointestinal bleeding, trauma, etc. When there is decreased formation of urea as seen in liver disease, there is a decrease in the BUN/Creatinine ratio. In most cases of chronic renal disease the ratio remains relatively normal.
Tests Included: 5
Est. 1-3 (business days) Turnaround
Specimen type: Blood
Quest Diagnostics Location
Choose the tests you need and order now
Visit your local lab today
Online fast results sent straight to you
Please do not exercise prior to testing. It is best that your blood is taken in a rested state.
Note: Turn around times on results are an estimate and are not guaranteed. The lab may need additional time due to holidays, confirmation/repeat testing, etc. You can contact us to discuss when your results should be ready and we will contact the lab on your behalf immediately.
| Bun/Creatinine Ratio | 6-22 (calc) | ||||
| Urea Nitrogen (BUN) | |||||
| Age | Male(mg/dL) | Female(mg/dL) | |||
| <1 Month | 4-12 | 3-17 | |||
| 1-11 Months | 2-13 | 4-14 | |||
| 1-3 Years | 3-12 | 3-14 | |||
| 4-19 Years | 7-20 | 7-20 | |||
| ≥20 Years | 7-25 | 7-25 | |||
| Creatinine | ||
| Age | Male (mg/dL) | Female (mg/dL) |
| ≤2 days | 0.79-1.58 | 0.79-1.58 |
| 3-27 days | 0.35-1.23 | 0.35-1.23 |
| 1 month-9 years | 0.20-0.73 | 0.20-0.73 |
| 10-12 years | 0.30-0.78 | 0.30-0.78 |
| 13-15 years | 0.40-1.05 | 0.40-1.00 |
| 16-17 years | 0.60-1.20 | 0.50-1.00 |
| 18-19 years | 0.60-1.26 | 0.50-1.00 |
| 20-49 years | 0.60-1.35 | 0.50-1.10 |
| 50-59 years | 0.70-1.33 | 0.50-1.05 |
| 60-69 years | 0.70-1.25 | 0.50-0.99 |
| 70-79 years | 0.70-1.18 | 0.60-0.93 |
| ≥80 years | 0.70-1.11 | 0.60-0.88 |
For patients >49 years of age, the upper reference limit for creatinine is approximately 13% higher for people identified as African-American.
| eGFR Non-African American | ≥60 mL/min/1.73m2 |
| eGFR African American | ≥60 mL/min/1.73m2 |
You can not buy tests from different labs in the same order. Please click cancel to stay with this test menu or click proceed to move to another test menu. Note if you have selected tests they will be removed.
You are attempting to add a covid-19 test in your cart. Coronavirus testing has to be purchased on its own. Would you like us to remove the contents of your cart and you can add this test?
You have a Covid-19 test in your cart. Coronavirus testing has to be purchased on its own. Would you like us to remove that so that you can add this test?
