Category Archives: Serum Creatinine

I have been taking Lisinopril 10 12.5 for past 25 yrs. Stage 4 failure and was taken off and creatinine went from 7.5 down to 6.2. Should I continue or find another med for hbp control?

The elevation of the serum creatinine is a normal response for use of ACE-inhibitors such as Lisinopril. By lowering the pressure inside the filters (glomeruli) of the kidney, this causes some decrease in the estimated glomerular filtration rate (eGFR) and … Continue reading

Posted in Ask the Doctor, Chronic Kidney Disease, GFR, Hypertension/High Blood Pressure, Kidney-Related Health Questions, Serum Creatinine

Hello, I am a male of 23 years, without being diabetic or hypertensive. I had a rise in creatinine back from the holidays of 1.05 when it has always been at 0.85, after about 3 weeks low to 0.92 and has remained so for 3 months. I did a creatinine / albumin ratio test, I had 38 of isolated albumin and a creatinine of 338.1 that when doing the ratio I got a quotient of 11. This is of concern? My doctors have told me no, and my last abdominal ultrasound showed all my organs, including the kidneys, well. This small rise in creatinine is causing me terrible anxiety when I think I may have chronic kidney failure.

Normal laboratory variation for the serum creatinine test is plus or minus 0.2 milligrams per deciliter (mg/dl). The variation that you are seeing the serum creatinine test is the variation we see with testing from day to day and does … Continue reading

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

Why would someone have high serum creatinine but have a normal 24 hour creatinine clearance?

This commonly occurs in people who have a large muscle mass, such as body builders and professional athletes. This individuals have an increased creatinine generation rate which results in an increased serum creatinine but the creatinine clearance remains normal.

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

On my labs (3 months ago) my GFR NON AFRICAN AMERICAN was 53 ml/min/SA and GFR AFRICAN AMERICAN was 64 ml/min/SA. Is Famotidine 20mg twice a day safe for your kidneys for an extended time? Are there any other H2 Blockers safer than others for an extended period of time? Are medications that decrease stomach acid production not safe at all? Thank you.

The histamine receptor two (H2) blockers are generally thought to be safe for patients with chronic kidney disease (CKD). Famotidine is an example of an H2 blocker. Most H2 blockers are equivalent, except for cimetidine, which can cause an elevation … Continue reading

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

High elevated creatinine levels accompanied by normal 24 hour creatinine clearance, scans and BUN. No protein in urine. Should there be concern? Curious because serum creatinine is said to have many influences and muscle mass is one. But there are also massive 6’2″ 300 pound steroid using men’s lab results that come back normal. Big muscle mass like that with a normal creatinine cause concern to me when looking at a 5’8″ person with higher than normal creatinine and no steroid use. When you are much smaller should that cause someone to be concerned as well? Or is everyone different and you need to look at a person as a whole. Considering both the top tests are co-existing normal or if the tests were not yet taken.

A normal 24 hour urine collection for creatinine clearance is a strong indicator that kidney function is likely normal. As you mention, the serum creatinine tends to go up with increased muscle mass and this can be confusing for estimating … Continue reading

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

How do I lower creatinine with diet? And he has protein 65mg. His weight is 174 pound. Please let me know. And can he have kidney transplant now at this point, at stage four? I really appreciate it for the help. Thank you.

I do not know of any dietary adjustment that will improve kidney function and lower the serum creatinine. The goal of treatment of chronic kidney disease (CKD) is to try and preserve remaining kidney function. It is generally not possible … Continue reading

Posted in Ask the Doctor, Chronic Kidney Disease, GFR, Kidney-Related Health Questions, Nephrologist, Serum Creatinine, Transplantation

We are in Gujarat, India. My nephew’s son is of 14 years. His Creatinine level is 2.2. Can it be fatal anyway? What vegetarian diet can he be given to lower down the Creatinine?

I do not know of any vegetarian diet that will lower the serum creatinine. I do suggest a low salt diet. I suggest that your nephew limit his sodium intake to less than 2300 milligrams per day. I am unable … Continue reading

Posted in Ask the Doctor, Diet/Nutrition, Kidney-Related Health Questions, Serum Creatinine

Hi, I have a relative who is a known case of heart failure for years on regular treatment and follow up. Two weeks ago, added Atorvastatin 10 mg and Candesartan 4 mg to his treatment regimen. Few days later he had a renal function test that showed an increase in Urea and Creatinine, upon which his doctor stopped the Candesartan, and when the test was repeated 24 hours later, the Urea and Creatinine levels have already started to decrease. After two days, he was given oral Amoxicillin 1.5 gm per day because of his chest infection and he finished his 7 day course of antibiotics, but on the last day of the course he deteriorated, became confused and his edema was worse than ever. Furthermore, he didn’t pass any urine for over a day. He was taken to the emergency, admitted and started on renal replacement therapy. My question is, could the amoxicillin have caused this deterioration? His renal function results have always been normal, his kidneys healthy, and the deterioration only started with the Candesartan. However, the kidney function started to improve upon cessation of this medication. We are confused at what triggered this tragedy and wondering for how long should the replacement therapy continue, and whether anything else can be done. Thank you for your time.

I am unable to make a specific diagnosis based on the information that you present. There are many possibilities. It is very common for Candesartan and other ARB agents to produce an increase in the serum creatinine and Blood Urea … Continue reading

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

I have recently got my blood work done because of my Doctor’s concerns with pre-diabetes. It came back as pre-diabetes. But what concerned me is I had GFR of 57.35, CHLORIDE 109 and CREATINE 1. Should I be concerned with kidney disease as well? I have high blood pressure, Graves disease, and a blood disorder that leaves me anemic most of my life. I am 56 years old.

I do recommend that you have blood testing for serum creatinine and estimated glomerular filtration rate (eGFR) and urine testing for protein, blood, and infection at least on an annual basis. I am unable to make a specific diagnosis at … Continue reading

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

In 2013 my scr was .96. In June of 2018 it was 1.02 and most recently in March of 2019 it was 1.1. I’m 35 years old 5’7” and 155 lbs. I don’t have any health conditions. Is this something I should look into further?

The normal laboratory variation for the serum creatinine is plus or minus 0.2 milligrams per deciliter (mg/dl). Hence, the numbers that you provide for your serum creatinine are within the normal laboratory variation from day to day. Screening for chronic … Continue reading

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