Category Archives: Serum Creatinine

Hi, My brother is 46 and has been detected with CHF after heart attack last month. His LVEF is 30%-35%. He is Type-2 Diabetes and hypertension. However, these are under control now. He is 5.6″ and weighing around 83 kg currently. He just had a creatinine test and it came 2.4 which was 1.21 three months before. What does this mean and if it is a damage to kidney then can it be reversed? Please suggest. Regards.

I am unable to make a specific diagnosis based on the information that you present.  Your brother will need further testing in order to make a specific diagnosis as to the cause of his kidney problem.  Consultation with a nephrologist … Continue reading

Posted in Ask the Doctor, Blood/Urine Testing For Kidney Disease, Chronic Kidney Disease, Diabetes, Hypertension/High Blood Pressure, Kidney-Related Health Questions, Laboratory Testing, Nephrologist, Serum Creatinine, Urinary Tract Infection/Pyelonephritis

Dear sir I am man and age 51, Bangladeshi. On 30-11-2019 my last creatinine level is 1.55. Is this danger level? How I can control it as 1.2? I am worried. Can you please advise me? How can I control?

In order to complete screening for chronic kidney disease (CKD), you should have a urine test for blood, protein, and infection.  I am unable to make a specific diagnosis based on the information that you present.  You will need to … Continue reading

Posted in Ask the Doctor, Blood/Urine Testing For Kidney Disease, Chronic Kidney Disease, Kidney-Related Health Questions, Laboratory Testing, Serum Creatinine, Urinary Tract Infection/Pyelonephritis

I don’t have diabetes, high blood pressure or high cholesterol, what may have caused my CKD stage 3? My creatinine is 1.11. Thank you.

I am not able to provide a specific diagnosis based on the information that you present.  The two most common causes of chronic kidney disease (CKD) are hypertension and diabetes as you mention.  There are genetic causes of kidney disease, … Continue reading

Posted in Ask the Doctor, Blood/Urine Testing For Kidney Disease, Chronic Kidney Disease, Diabetes, Hypertension/High Blood Pressure, Kidney-Related Health Questions, Laboratory Testing, Serum Creatinine

I am a 33 year old caucasian male. I have a creatinine level of 1.41 & 1.38 mg/dl (recorded about 1.5 months apart) that was flagged high. Is that of concern? I take a daily protein supplement, physically active, and both these readings were taken in the morning when I didn’t have anything to drink in a 10-12 hours span.

It is difficult to interpret serum creatinine levels when I don’t know the laboratory that performed the test and I don’t know the laboratory normals. These results would likely be above the normal range but I can’t tell for sure. … Continue reading

Posted in Ask the Doctor, Blood/Urine Testing For Kidney Disease, Kidney-Related Health Questions, Laboratory Testing, Serum Creatinine

I had right nephrectomy in 2012. I just recently had a sonogram to make sure my left kidney looks OK (and it does). The last lab results show eGFR non-afr. american at 53, creatinine 1.18, albumin 4.6. Urine test is negative for protein. I tried to figure out that albumin/creatinine ratio, but I am not sure if those two numbers should be combined. My question/concern is if, based on the eGFR value itself, I am already considered to be at the Stage 3?! Thanks in advance.

Removal of one kidney will result in a lower estimated glomerular filtration rate (eGFR) and will actually result in an eGFR that is about one-half of normal.  If the normal eGFR is between 90 and 120 milliliters per minute per … Continue reading

Posted in Ask the Doctor, Blood/Urine Testing For Kidney Disease, Chronic Kidney Disease, GFR, Kidney-Related Health Questions, Laboratory Testing, Nephrectomy / One kidney, Serum Creatinine, Urinary Tract Infection/Pyelonephritis

Hey Doc, Long time no talk. Quick question for you. I have been doing much better mentally. Seeing a therapist about anxiety and not worried about my kidneys. My 1.4, 1.54, 1.7, 1.4, 1.4, 1.2, 1.3 creatinine really scared me but after seeing two nephrologists, one er doctor, my physician and talking with you I feel confident no CKD. My 136.6 creatinine and no protein helped confirm this. I am eating 90% vegan as well and cut back working out for time being. My question for you is. Why if African Americans are more likely to have CKD than a Caucasian would they have their own formula to consider creatinine is better? I believe this is faulty. Would you agree? For example if it is all muscle mass related and body builders like myself have a much bigger mass than average african american why don’t more doctors realize this?

The CKD-EPI and MDRD formulas for calculation of the estimated glomerular filtration rate (eGFR) were derived from patients populations and it was noted that ON AVERAGE, African Americans have a larger muscle mass and a serum creatinine that is higher … Continue reading

Posted in Ask the Doctor, Blood/Urine Testing For Kidney Disease, GFR, Kidney-Related Health Questions, Laboratory Testing, Nephrologist, Serum Creatinine

I’m 55 years old and have blood pressure under control through medication. I had a blood test 18 months ago & my GFR was 74 & my BUN was 17 mg/dL. I’ve been very sedentary since & have gone from a good 180 lbs to 210 lbs. I just did the blood test again & my GFR is still 74 mL & my BUN jumped to 23 mg/dL. My creatinine & all other indicators in the blood test are normal. Does the 74 GFR & 23 BUN mean I have kidney disease? They seem just outside the acceptable ranges.

I do not identify any kidney disease based on the information that you present. It is important that you have urine testing for blood, protein and infection in order to complete testing for chronic kidney disease (CKD).  Your blood pressure … Continue reading

Posted in Ask the Doctor, Blood/Urine Testing For Kidney Disease, Chronic Kidney Disease, GFR, Kidney-Related Health Questions, Laboratory Testing, Serum Creatinine, Urinary Tract Infection/Pyelonephritis

I emailed you yesterday about my concerns with an egfr of 80 at age 37. I wanted to supplement with some context, having since found some previous labs, which allowed me to calculate an egfr. Here’s the data set: 2009 – 75 2011 – 95 2012 – 108 2013 – 97 2016 – 99 2018 – 87 2019 – 80 As you can see, there is some variation here. On my last score of 80, my BUN was unchanged. I have read that that may suggest that the creatinine elevation is false. I am thinking I was dehydrated during the last lab, or that it was impacted by strenuous. I am going to ask my doctor to run it again in the next month or two and see how it goes. Based on the above, how concerned should I be? I really appreciate your reading this and any inputs you may have.

As you can see from your laboratory testing and the data set that you present, there is significant laboratory variation when the calculated estimated glomerular filtration rate (eGFR) is greater than 60 milliliters per minute per 1.73 meters squared. This … Continue reading

Posted in Ask the Doctor, Blood/Urine Testing For Kidney Disease, Chronic Kidney Disease, GFR, Kidney-Related Health Questions, Laboratory Testing, Serum Creatinine, Urinary Tract Infection/Pyelonephritis

Hi my father is a 72 years old patient with ckd, diabetes, hypertension and HF.(has done CABG 18 years back). He just had a fistula procedure recently (prep for dialysis) but he had extreme itchiness in hands and legs since creatinine levels shot up a few months ago and now that has developed into dark spots on hands and legs. I have pictures could send though email. Kindly advice and guide. Thank you. Kind Regards,

I am not able to make specific diagnoses and I am not able to accept any patient pictures on the web site.  In order to make a specific diagnosis, I would need to perform a complete history and physical examination. … Continue reading

Posted in Ask the Doctor, Blood/Urine Testing For Kidney Disease, Chronic Kidney Disease, Diabetes, Dialysis, Hypertension/High Blood Pressure, Kidney Failure, Laboratory Testing, Nephrologist, Serum Creatinine

BUN 28 mg/dL, Creatinine 1.51 mg/dL, and eGFR (non Afr Am) 51 mL/min/1.73 Should I be concerned? I have ADPKD and am 55 years old.

These findings, if they are repeated and still abnormal, would suggest that you have progressive kidney disease.  You should be followed by your physician and make sure you are on proper treatment for your autosomal dominant polycystic kidney disease (ADPKD). … Continue reading

Posted in Ask the Doctor, Blood/Urine Testing For Kidney Disease, Chronic Kidney Disease, GFR, Kidney-Related Health Questions, Laboratory Testing, Polycystic Kidney Disease, Serum Creatinine