Doctor insights on:
Bun And Creatinine Levels In Dehydration
I have a creatinine level of 1.5, sodium 129 (L), potassium 3.7, choloride 93(L), BUN 17. Can the high level of creatinine be caused by dehydration?
Concentration: The 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
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
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
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 certain other conditions like bleeding in the intestines, artificial nutrition intravenously of Amino Acids and use of steroids. ...Read more
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 be over 20 for a patient to be considered dehydrated or in "pre renal kidney failure. ...Read more
CKD CHF patient on fluid 1L restriction BUN 53, Creatinine 2, going worse when on lasix (furosemide). At what BUN am I too dehydrated/cause for high BUN/C ratio?
Bun/creatinin ratio: Greater than 20 in the absence of GI bleeding usually indicate intra vascular volume depletion. If no peripheral edema discuss need for fluid restrictions with your doctor ...Read more
My potassium is high but I'm not dehydrated. Bun/creatinine ratio is high and other electrolytes are borderline. What could be wrong?
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
Healthy 35 yr old female w B/C ratio elevated at 23 with normal Bun and creatinine level of 16 (ref range 7-18) and 0.7. I did not drink much that day?
Tests, tests, tests: Tests results always have to be interpreted in a context. When they measure the temperature of the winner of the Boston Marathon 2 yrs ago it was over106 F. Was he very ill? NO! He had been using his bodies muscles at full output for over 2 hrs straight. The heat generated raised his body temp a lot and he soon cooled off. You hv to talk with yr doc or make a virtual consult. ...Read more
The BUN is usually 10 times the creatinine. When the creatinine goes up, the BUN goes up similarly to roughly keep this proportion, in most kidney disease states.
The notable exception is when the creatinine goes up say by 20% to 1.2, but the BUN goes up *5 to 50. This strongly suggests a pre-renal state, commonly dehydration.
Mild elevations of BUN with normal creatinines aren't of concern. ...Read more
Monitor for now: Normal levels for females range from 0.5 – 1.1. However, as we get older, our kidney function does decline and creatinine levels increase. Dehydration and certain medications/procedures may also cause a bump in creatinine levels. I'd recommend a medication review and follow up labs in 1-3 months to monitor your creatinine levels, unless you notice changes in your urine in the interim. ...Read more
Need numbers: It would help to have the actual numbers. The doctor who ordered these tests would be in a better position to advise as s/he knows your health status. ...Read more
Depends on drug: Many drugs are excreted by the kidneys and doses of those drugs need to be adjusted in people with elevated BUN/Cr. ...Read more
I have a high bun/ creatinine level (28) and a low creatinine level (0.5). Should I be concerned or do something?
BUN/Creat Ratio: I personally would not worry about it since the high ratio is due to a slightly elevated BUN. This might be due to a diet high in non-essential amino acids (nothing to truly be concerned about) or a mild lack of water intake. If you are still concerned, please see your primary doctor and go over all of that with her/him. ...Read more
Can dehydration raises creatinine level of 1.58? I had strenuous exercise yesterday. Last week my creatinine was 1.32.
31 white female, 1.2 creatinine level, normal BUN, 82 Prolaction level, 56 GFR should I be concerned?
Prolactin and kidney: Hi. Those are two unrelated conditions. Serum prolactin (PRL) can accumulate in chronic kidney disease (CKD), but your CKD is way too mild to cause that. Ergo, you have hyperprolactinemia. Do you have amenorrhea and galactorrhea? If not, the PRL may be a red herring, and macroprolactinemia should be tested for. Why you fall into the category of Stage 4 CKD is unknown to us. So, eval. PRL and CKD ...Read more
Would losing 12 pounds on an already petite woman and dramatically decreasing protein cause BUN creatinine level to drop from 15 to 6 in 3 months?
Loss of muscle mass:
In addition to losing fat, you are losing muscle mass and that is reflected in the drop in creatinine. You may wish to increase your protein intake and exercise.
For good health — Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Drink enough water daily so that your urine is mostly colorless.
Practice safe sex. ...Read more
I recently had a blood test. The BUN was 10 and creatinine was 1.2. I am a 36-year-old male, Asian and am worried about the high creatinine levels?
Husbands blood creatinine level is 1.18, reference range is (0.50-1.20 mg/dl). Bun/cre ratio is 11.0, range is (10-20). Is there anything to be concerned about here?
No Need to Worry: Blood creatinine and bun/cre ratio are measures of kidney function and fluid balance in the body. These numbers are well within range of normal. Of course, you should speak with your physician if you have concerns. Clinical correlation to any disorders is the key. If your husband is well, then there is no need to worry. The kidneys are working fine. ...Read more
Sick patient: When a patient has ards, thje patient is very sick. Thus, other organs can get damaged including the kidney. BUN and creatinine are makers of kidney injury and your doctors are going to monitor its function routinely. The electrolytes are also changing and need to be corrected routinely. ...Read more
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