Creatinine is a waste product your body makes when it uses your muscles for energy. Your kidneys help filter this waste. A blood or urine creatinine test measures how well your kidneys work by measuring their glomerular filtration rate (GFR). Abnormal creatinine test results can sometimes (but ...
There are no preparations needed for a serum creatinine blood test. The 24-hour urine collection, by contrast, may require you to stop certain medications or activities that may interfere with the results. Timing of Blood Test You can take the serum creatinine blood test at any time of the ...
A blood sample is collected, typically from a vein in the arm, and sent to a laboratory for analysis. The laboratory employs methods such as the Jaffe method or enzymatic methods to quantify the amount of creatinine present in the blood sample. The results are typically expr...
(Urea is produced by the liver as a waste product of the digestion of protein and is also removed from the blood by the kidneys.) Serum Creatinine Test Results Serum creatinine levels can vary according to a person's size, muscle mass and gender. Women have lower serum creatinine levels ...
What do the test results show? Increased levels of creatinine in the blood may indicate that the kidneys are not functioning as well as they should be; this could be down to several different illnesses, including: Urinary tract obstruction Pyelonephritis (this is an infection of the kidneys) ...
creatinine 美[kri'ætənin] 英[kri:'ætɪni:n] n.【生化】肌酸酐 网络肌酐;肌酐酸;肌酸肝 英汉 英英 网络释义 n. 1. 【生化】肌酸酐 例句 更多例句筛选
A high BUN/creatinine ratio in your blood tests may result from three reasons: elevated BUN and normal creatinine, normal BUN and low creatinine, or both BUN and creatinine elevated, but BUN is disproportionately higher. On the other hand, BUN creatinine ratio blood test low results may be be...
function test based on the amount of creatinine in the bloodD - serineComparing a given thresholdThe process of determining the validity of the renal function test based on the amount of creatinine in the bloodIncluding said methodAnd a sample analysis system and program for carrying out the ...
A mathematical calculation of the total amount of creatinine excreted in the urine over a period of time, usually 24 hours to test renal function. The calculation is: creatinine clearance (mL/minute) = urine creatinine concentration (mL/dL) × volume of urine (mL/24 hour) ÷ plasma creatinin...
The serum level is less influenced by extra-renal factors than is the serum nitrogen level, and is the more accurate test. Reproducibility of measurement is within 2 per cent. When the test results return, there are a number of questions to be asked: What is the normal range for the ...