00:00If your creatinine is high on your blood test, you're probably wondering what is causing it.
00:08Most people immediately assume something is wrong with their kidneys.
00:13But here's the important question.
00:16Could something else be causing your creatinine to go up?
00:20Because the answer to that question is yes.
00:23In fact, there are several common reasons your creatinine can be elevated even when your kidneys are working normally.
00:33In this video, I'm going to walk you through five of the most common non-kidney causes of high serum
00:41creatinine.
00:43And by the end, you'll have a much clearer idea of what your result may mean.
00:53Let's start with number one, high muscle mass.
00:58Creatinine is formed in your muscles from a substance called creatinine, which is produced by the liver.
01:06So the more muscle a person has, the more creatinine their body naturally produces.
01:12This means that people with higher muscle mass, especially athletes, can have higher baseline creatinine levels without any kidney problem.
01:25Also, when muscles are stressed or damaged, creatinine levels can temporarily rise.
01:32For example, intense exercise or strenuous workouts can cause a short-term increase in serum creatinine.
01:42Now, number two, eating a large amount of meat.
01:48Creatinine is found in meat and fish.
01:51And when these foods are cooked, especially at high temperatures like grilling or frying,
01:57some of the creatinine is converted into creatinine.
02:00So if you eat a large amount of cooked meat, your blood creatinine level can temporarily rise.
02:09This effect is usually short-lived and may return to normal within several hours.
02:16Number three, creatinine supplements.
02:19Creatinine supplements are commonly used to improve muscle strength and performance.
02:25When you take creatinine, your body converts some of it into creatinine.
02:31And this can raise your blood creatinine level, even if your kidneys are functioning normally.
02:38Now, here is something many people don't realize.
02:41Medications.
02:43Creatinine is mostly filtered by the kidneys.
02:46But a small amount, about 10 to 20%, is also secreted by the kidney cells into the urine.
02:54Some medications can block this secretion.
02:58And when that happens, less creatinine leaves the body and the blood levels rise.
03:05A common example is cymetidine.
03:08Importantly, in this situation, the creatinine rises without actually kidney damage.
03:16And finally, number five, lab interference.
03:21Creatinine is often measured using a method that detects color changes in the blood.
03:26Sometimes, other substances, called chromogens, can interfere with this measurement.
03:34Examples include high glucose or ketones, especially in people with diabetes.
03:40And when this happens, the test may falsely report a higher creatinine level than is actually present.
03:48Now, let's pause for a moment.
03:51At this point, you're probably wondering,
03:53How do you know if the creatinine is elevated from one of these reasons or because of a kidney problem?
04:03This is where context comes in.
04:06Doctors don't rely on a single creatinine value.
04:10They look at trends over time, other lab values, your medical history.
04:16So here's the key message.
04:19A high creatinine does not always mean kidney disease.
04:23Some of the most common non-kidney causes include
04:27A high muscle mass, recent intense exercise,
04:33Eating a large amount of cooked meat,
04:36Creatinine supplements,
04:38Certain medications,
04:40And even lab interference.
04:43If you recently had high creatinine results,
04:47It's important to discuss it with your doctor,
04:51Especially if it's unexpected.
04:53In many cases, when these factors are addressed,
04:58Your creatinine levels will return to normal if there's no underlying kidney disease.
05:05I hope you enjoyed the video.
05:07I hope you found it useful.
05:09If you did, like and share the video with your friends and family.
05:12You can support this channel by subscribing.
05:16Until the next video, stay healthy and stay safe.
05:20Bye.
05:20Bye.
05:21U.S.
Comments