Nephrology Secrets. Seifter JR. Potassium disorders. Goldman-Cecil Medicine. Philadelphia, PA: Elsevier Saunders; chap The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites.
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Please discuss with your doctor any questions or concerns you may have. Medical Tests. Definition This test measures the amount of potassium in the fluid portion serum of the blood. How to Prepare for the Test Many medicines can interfere with blood test results.
Your health care provider will tell you if you need to stop taking any medicines before you have this test. DO NOT stop or change your medicines without talking to your provider first.
How the Test will Feel You may feel slight pain or a sting when the needle is inserted. For hour urine collection, your doctor or lab will usually give you a large container that holds about 4 L 1 gal. Blood test A health professional uses a needle to take a blood sample, usually from the arm. Urine test A urine test can be done using a single urine sample or urine collected over 24 hours. How to do a potassium K clean-catch midstream urine collection Wash your hands before you collect the urine.
Prepare the container. If the container has a lid, remove the lid and set it down with the inner surface up. Clean the area around your penis or vagina. Start to urinate into the toilet or urinal. Collect the urine in the container.
Finish urinating. Replace the lid on the container. Wash your hands. How to do the test You collect your urine for a period of time, such as over 4 or 24 hours.
When you first get up, you empty your bladder. But don't save this urine. Write down the time you began. For the set period of time, collect all your urine. Don't get toilet paper, pubic hair, stool feces , menstrual blood, or anything else in the urine sample. Keep the collected urine in the refrigerator for the collection time.
Empty your bladder for the last time at or just before the end of the collection period. Add this urine to the large container. Then write down the time. How long does the test take? After a blood test: You will probably be able to go home right away. You can go back to your usual activities right away. Home About MyHealth. If you have high potassium levels, your heart muscle activity may be reduced.
Both situations are serious and can be life threatening. In rare cases, potassium levels may be low through a poor diet. Good sources of dietary potassium include: fruit, particularly bananas vegetables pulses nuts and seeds milk fish shellfish beef chicken turkey bread Read more about the potassium test on Lab Tests Online UK.
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