What is a normal BUN and creatinine level?
Reference Range:
| Analyte | Male | Female |
|---|---|---|
| BUN, 0-18 Years | 5-18 mg/dL | 5-18 mg/dL |
| BUN, ≥19 Years | 8-23 mg/dL | 8-23 mg/dL |
| Creatinine, ≤2 Days | 0.79-1.58 mg/dL | 0.79-1.58 mg/dL |
| Creatinine, 3-27 Days | 0.35-1.23 mg/dL | 0.35-1.23 mg/dL |
Is a BUN level of 25 bad?
The BUN/creatinine ratio is a good measurement of kidney and liver function. The normal adult range is 6 to 25, with 15.5 being the optimal value.
Is a BUN level of 28 bad?
In general, non-renal causes usually increase BUN mildly, usually to less than 28 mg/dL. In comparison, patients with end-stage renal failure, requiring renal replacement therapy, may have plasma BUN levels greater than 140 mg/dL.
What is the normal range for BUN?
In general, around 6 to 24 mg/dL (2.1 to 8.5 mmol/L ) is considered normal. But normal ranges may vary, depending on the reference range used by the lab and your age. Ask your doctor to explain your results. Urea nitrogen levels tend to increase with age.
Is a BUN level of 30 bad?
Less than 30 mg/L is normal. Greater than 30 mg/L but less than 300 mg/L is called microalbuminuria. Greater than 300 mg/L is called macroalbuminuria.
Is BUN of 27 too high?
The normal BUN level is between about 7 and 21 milligrams per deciliter (mg/dL). Unless this level is greater than 60 mg/dL, it may not help your healthcare provider measure your kidney health.
Can dehydration cause high BUN creatinine ratio?
Check for severe dehydration. Dehydration generally causes BUN levels to rise more than creatinine levels. This causes a high BUN-to-creatinine ratio. Kidney disease or blockage of the flow of urine from your kidney causes both BUN and creatinine levels to go up.
What are dangerous levels of Bun?
The ideal ratio of BUN to creatinine falls between 10-to-1 and 20-to-1. Having a ratio above this range could mean you may not be getting enough blood flow to your kidneys, and could have conditions such as congestive heart failure, dehydration, or gastrointestinal bleeding.
What numbers are considered high for BUN levels?
A high BUN Cr ratio is the level above 20:1. An increase in this ratio can result due to a decrease in the flow of blood to the kidneys. For instance, is you have a BUN Creatinine ratio 24, it means you could be slightly dehydrating.
What medications cause low BUN levels?
BUN levels can increase with the amount of protein in the diet. High-protein diets may cause abnormally high BUN levels while very low-protein diets can cause an abnormally low BUN. A wide variety of drugs can cause an increase in BUN. Drugs that can decrease BUN include chloramphenicol and streptomycin.
Should you fast for Bun lab test?
If you’re only getting a BUN test, you can eat and drink. But if you’re getting other blood tests, your doctor may give you directions that may include fasting before the test.