Re: Cl Normal Range
Kym Cavrak
A measurement of the serum creatinine level is often used to evaluate kidney function. Urine creatinine levels can be used as a screening test to evaluate kidney function, or can be part of the creatinine clearance test.
When the needle is inserted to draw blood, some people feel moderate pain. Others feel only a prick or stinging sensation. Afterward, there may be some throbbing or slight bruising. This soon goes away.
This test is done to see how well your kidneys work. Creatinine is removed from the body entirely by the kidneys. If kidney function is not normal, the creatinine level in your blood will increase. This is because less creatinine is excreted through your urine.
The examples above are common measurements for results of these tests. Normal value ranges may vary slightly among different laboratories. Some labs use different measurements or test different samples. Talk to your provider about the meaning of your specific test results.
There is little risk involved with having your blood taken. Veins and arteries vary in size from one person to another and from one side of the body to the other. Taking blood from some people may be more difficult than from others.
Reviewed by: Jacob Berman, MD, MPH, Clinical Assistant Professor of Medicine, Division of General Internal Medicine, University of Washington School of Medicine, Seattle, WA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
A laboratory (lab) test checks a sample of your blood, urine (pee), or other body fluid or tissue to learn about your health. The sample is sent to a lab where health care professionals test it to see if it contains certain substances and, if so, how much.
Other lab tests provide more general information about your health and possible problems. Test results that aren't normal give your health care provider clues about the type of health problems you may have. The results help your provider decide whether you need more tests and which ones will be most useful for diagnosing or ruling out certain conditions.
Lab tests are an important part of your health care. But they don't provide a complete picture of your health. Even though you may get your test results in your electronic health record (EHR), it's still important to talk with your provider to find out what your results really mean for you.
To get a full picture of your health, your provider will use your test results along with information from your physical exam, health history, family health history, and sometimes imaging tests, such as x-rays. In most cases, combining that information leads to a more accurate diagnosis than the results from any one lab test.
Diagnose or rule out a specific disease or condition. Tests to diagnose health problems are done when you have signs or symptoms of a certain disease or condition. Sometimes more than one test is needed to confirm a diagnosis.
Suggest whether you need more testing to check for a condition or disease. These screening tests look for signs that you may have a health problem so that you can have more testing to find out for sure. For example, one type of screening test for colon cancer looks for blood in your stool (poop). If blood is found, it could be a sign of cancer. So, your provider may order a colonoscopy to find out for sure whether you have cancer.
Monitor a disease and/or treatment. If you've already been diagnosed with a disease, you may need lab tests to see if your condition is getting better, worse, or staying the same. Tests can also show if your treatment is working.
A reference range is a set of numbers that are the high and low ends of the range of results that's considered to be normal. The ranges are based on the test results from large groups of healthy people. A test may have different reference ranges for different groups of people. For example, there may be separate ranges for children and adults.
Reference ranges are a general guide to "normal." If your test result is higher or lower than the range that applies to you, it may be a sign of a health problem, but not always. It's common for healthy people to sometimes have results outside the reference range. And people with health problems can have results in the normal range, too.
If your results are outside of the reference range, your provider will look at other information about your health to understand what may have affected your results. You may need more testing if your result is higher or lower than the reference range, or if you have a normal result even though you have symptoms.
These incorrect results don't happen often, but they are more likely with certain of types tests, or if testing wasn't done right. If your provider thinks your test result may be inaccurate, you may need to have another test.
Your provider will let you know if you need to prepare for your test. Follow your provider's instructions carefully. That will help make sure your test results are as accurate as possible. Before your test, let your provider know about all the prescription and over-the-counter medicines you take as well as vitamins and other supplements.
At-home test kits are available for many types of lab tests. The kits provide everything you need to collect a sample of body fluid or cells to send to a lab. At-home tests should never replace testing that your provider orders. Ask your provider or pharmacist to recommend a test you can trust. And talk with your provider about your results, even if they're normal.
If someone has COVID-19, a pulse oximeter may help them keep watch over their health and to know if they need medical care. However, while a pulse oximeter may help someone feel like they have some control over their health, it does not tell the whole story. Oxygen level measured by a pulse oximeter is not the only way to know how sick someone is. Some people may feel very sick and have good oxygen levels, and some may feel OK, but have poor oxygen levels.
Pulse oximetry results may not be as accurate for people with darker skin. Their oxygen levels are sometimes reported as higher than they really are. People who check their own oxygen levels, or those who check it for them, should keep this in mind when looking at results.
Oxygen levels may be low if someone feels short of breath, is breathing faster than usual, or feels too sick to do their usual daily activities, even if a pulse oximeter says their oxygen levels are normal. Call a doctor or another health care provider right away if you have these symptoms.
For people without diabetes, the normal range for the HbA1c level is between 4% and 5.6%. If your levels are in the range of 5.7%-6.4%, it means you have prediabetes and a higher chance of getting diabetes. Levels of 6.5% or higher mean you have diabetes.
The target A1c level for people with diabetes is usually less than 7%. The higher the hemoglobin A1c, the higher your risk of having complications related to diabetes. Someone who has had untreated diabetes for a long time might have a level above 8%.
Maybe. If you have no symptoms of diabetes when you take the test, your doctor will schedule a follow-up A1c test to confirm the result. Also, several health conditions and other factors can make the A1c test less accurate, potentially causing falsely high or falsely low results. Your doctor should consider these factors when evaluating your A1c test result.
Your kidneys filter your blood by removing waste and extra water to make urine. The glomerular filtration rate (GFR) shows how well the kidneys are filtering. An estimated 37 million adults in the United States may have chronic kidney disease (CKD) but nearly 90% are unaware of their condition. When found early, people can take important steps to protect their kidneys.
Getting an accurate GFR level is challenging because measured GFR (mGFR) is a complicated and lengthy process. This makes it impractical for both clinicians and patients. It is for this reason that healthcare professionals use a formula to estimate GFR. Often, CKD does not have any symptoms until the later stages of the disease. This is the reason why reliable estimates of GFR are so important for identifying CKD as early as possible.
The standard way to estimate GFR is with a simple blood test that measures your creatinine levels. Creatinine is a waste product that comes from the digestion of dietary protein and the normal breakdown of muscle tissue. Aside from CKD, creatinine levels can be affected by other factors including diet; muscle(weight of your muscles); malnutrition; and other chronic illnesses.
*Other factors that can affect eGFR include: pregnancy, being over the age of 70, unusual muscle mass, cirrhosis (a disease caused by scarring in the liver), nephrotic syndrome (a condition caused by having too much protein in your urine), a past solid organ transplant, and some medications.
Ask your health care professional if there are any special instructions to follow. You may need to avoid eating or drinking anything (except water) for several hours before the test. You may also be asked not to eat any cooked meat the night before the test. It can increase the level of creatinine in your blood and affect your eGFR results.
A health care professional will take a blood sample from a vein in your arm, using a small needle. After the needle is inserted, a small amount of blood will be collected into a test tube or vial. You may feel a little sting when the needle goes in or out. This usually takes less than five minutes.
There are five stages of kidney disease. Your healthcare professional determines your stage of kidney disease based on the amount of kidney damage shown by your eGFR or mGFR. Now that your know your eGFR, find out your kidney disease stage using the table below.
The normal body temperature of a person varies depending on gender, recent activity, food and fluid consumption, time of day, and, in women, the stage of the menstrual cycle. Normal body temperature can range from 97.8 degrees F (or Fahrenheit, equivalent to 36.5 degrees C, or Celsius) to 99 degrees F (37.2 degrees C) for a healthy adult. A person's body temperature can be taken in any of the following ways:
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