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Doctor insights on: Bun And Creatinine Levels In Dehydration

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How does bun and creatinine gets elevated due to dehydration? Kindly explain how?

How does bun and creatinine gets elevated due to dehydration? Kindly explain how?

Concentration: Simplest way, if you have lets say 100 particles in 5 liter of fluid, the concentration is 20 per liter. If you now have only 3 liter of fluid, the concentration is now 33.3. ...Read more

Dr. Ashu Syal
655 doctors shared insights

Dehydration (Definition)

In physiology and medicine, dehydration (hypohydration) is the excessive loss of body water, with an accompanying ...Read more


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How can the bun/creatinine ratio show dehydration?

How can the bun/creatinine ratio show dehydration?

BUN/Cr > 20:1: Urea (BUN) is reabsorbed by the kidney; creatinine is not. In dehydration, as water decreases and urea is reabsorbed, the BUN rises. Eventually, the cr will rise, too (if dehydration continues), but it doesn't increase in magnitude as fast as the bun. The bun/cr ration is usually ~10:1...When it's greater than 20:1, this suggests dehydration. ...Read more

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How can the bun/creatinine ratio indicate dehydration?

May be helpful: There are many causes of an elevated BUN or elevated creatinine, and the ratio between them must be interpreted in the clinical context of each specific patient. What is commonly referred to as "dehydration" usually causes an increase in the BUN to creatinine ratio, but other significant conditions may cause a similar rise and need to be considered, especially if there is an acute illness involved. ...Read more

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How can the bun/creatinine ratio tell you have dehydration?

How can the bun/creatinine ratio tell you have dehydration?

See below: An elevated BUN with normal creatinine and a ratio of [generally more than 18-20] occurs most commonly in dehydrated individuals and is not a sign of kidney damage.It may also occur in in certain other conditions like bleeding in the intestines, artificial nutrition intravenously of Amino Acids and use of steroids. ...Read more

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How does the bun/creatinine ratio show whether or not you have dehydration?

How does the bun/creatinine ratio show whether or not you have dehydration?

BUN/Creatinine ratio: Blood urea nitrogen (BUN) is the breakdown of protein excreted via kidney. Creatinine is the muscle breakdown product also excreted by the kidney. BUN and creatinine can be measured by lab tests. Usually the BUN / creatinine ratio has to to be over 20 for a patient to be considered dehydrated or in "pre renal kidney failure. ...Read more

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What over-the-counter meds affect creatinine and bun levels?

What over-the-counter meds affect creatinine and bun levels?

Painkillers: Specifically, non steroidal (nsaids) can sometimes affect renal function and increase your BUN and creatinine levels. ...Read more

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What does it mean low creatinine levels and high bun creatinine ratio?

Muscle mass: Serum levels of creatinine depend on renal function, muscle mass and intake of muscles foods. A low creatinine level is of no consequence as long as you are not emaciated. Paralyzed, or have extensive amputations. High ratio just reflects low creatinine. ...Read more

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I have Creatinine level of 1.2, normal BUN, GFR of 56, I'm 31, prolacton level of 82. Any suggestions?

Um, those are: not necessarily abnormal. Prolactin has more significance if it is sky high (it isn't). The others at most would probalby indicate a bit of dehydration. ...Read more

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What does it mean if your creatinine level is too high 1.16 and your bun/creatinine ratio is very low at a 5?

What does it mean if your creatinine level is too high 1.16 and your bun/creatinine ratio is very low at a 5?

Why do you ask?: Labs mean nothing in the absence of a clinical history. You might be a vegan bodybuilder. When I was lifting weights every day, my creatinine ran 1.6-1.8. The fellow-pathologists with whom I've discussed it think that reports generated by labs are causing overdiagnosis of renal disease (it's subscience -- "there's an adjustment for race because black people are more muscular.") ...Read more

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Dr. Madhu Kandarpa
2,192 doctors shared insights

Creatinine (Definition)

Creatinine is a byproduct of creatine phosphate, which is present in muscles. Creatinine levels increase if the ...Read more