Test Details & Preparation
Test details and preparation:
- Creatinine is a chemical waste product that’s normally filtered out of your blood by your kidneys. When your kidneys aren’t functioning properly, creatinine can accumulate in your body.
- The creatinine mesure test measure the amount of creatinine in the urine.
- The test is ordered when a person show certain symptoms of kidney disease or kidney failure such as-
- a reduced amount of urine
- swelling of your legs, ankles, and feet from retention of fluids caused by the failure of your kidneys to eliminate water waste
- unexplained shortness of breath
- excessive drowsiness or fatigue
- persistent nausea
- pain or pressure in your chest
- The test is done by taking a 24 hours urinary sample, starting from early morning of the previous day to the next day. The first early morning urinating is not collected. The time for starting of collection to the end of collection is measured.
- Preparations such a stopping of some medication, avoiding certain food and beverages and the doctor should be told about if someone is pregnant.
- Normal urine creatinine value ranges from 600-2500 mg/day. But the value varies with age and from lab to lab.
- The abnormal increase or decrease in the value may suggest-
- Kidney disease
- kidney infection
- kidney failure
- urinary tract obstruction, such as kidney stones
- late-stage muscular dystrophy, which is a group of diseases that damage and weaken your muscles over time
- which is an autoimmune disease that causes muscle weakness
- Consultation with a doctor is strongly suggested after any result.