What is the difference between blood urea and BUN?

Since BUN reflects only the nitrogen content of urea (MW 28) and urea measurement reflects the whole of the molecule (MW 60), urea is approximately twice (60/28 = 2.14) that of BUN. Thus BUN 10 mg/dL is equivalent to urea 21.4 mg/dL.

Is urea and blood urea same?

The conversion between both is that blood urea is approximately 2.14 times blood nitrogen bound to urea. Chemical formula of urea is ( NH2 )2 >C=O. i.e. Molecular weight of urea is 60 while nitrogen in it is 28 . 60/28 = 2.14 , so the conversion is blood urea nitrogen × 2.14 = blood urea , a calculative value .

What is the difference between blood urea and creatinine?

Urea is the primary metabolite derived from dietary protein and tissue protein turnover. Creatinine is the product of muscle creatine catabolism. Both are relatively small molecules (60 and 113 daltons, respectively) that distribute throughout total body water.

Is uric acid and blood urea same?

Urea constitutes the nitrogenous wastes in humans. Reptiles and birds produce uric acid as nitrogenous waste. Kidney helps in the elimination of urea and uric acid from the body through urine.

What is difference between BUN and BUN creatinine ratio?

Generally speaking, the relationship between your creatinine and BUN is 1:10 relationship. If indeed the BUN is higher than this, say 1:20 relationship, that suggests the patient may be dehydrated.

What is the difference between urea and thiourea?

The key difference between urea and thiourea is that urea does not contain sulfur atoms, whereas thiourea contains sulfur atoms. Urea and thiourea are organic compounds having a carbon atom bonded to two amine groups.

What is normal blood urea level?

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.

Which is more important urea or creatinine?

By comparison with urea, however, creatinine more closely fulfills the above criteria and for this reason is the preferred test for assessment of kidney function [3],[4]. Increased plasma creatinine is almost invariably a consequence of reduced GFR and therefore has a renal cause.

What is the normal urea and creatinine?

We defined the normal range as range within the single SD-line of the remainder. The estimated normal range of BUN was 14-23 mg/dl both in male and female elderly subjects, and that of Cr was 0.9-1.3 mg/dl in male and was 0.7-1.1 mg/dl in female.

What is the normal blood urea level?

What is the difference between ammonia urea and uric acid?

Urea is the major byproduct of ammonia metabolism in vertebrate animals. Uric acid is the major byproduct of ammonia metabolism in birds, terrestrial arthropods, and reptiles.

Which is more accurate BUN or creatinine?

Creatinine is found in serum, plasma, and urine and is excreted by glomerular filtration at a constant rate and in the same concentration as in plasma. Creatinine is a more reliable indicator of renal function than BUN because it is less influenced by other factors such as diet and hydration.