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17 terms

Serum creatinine

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SCR: Normal, Male:
0.6 - 1.2 mg/dL
SCR: Normal, Female:
0.5 - 1.1 mg/dL
SCR: Normal, Elderly:
- decrease in muscle mass may cause
- decrease in values
SCR critical values:
- > 4 mg/dL
- indicates serious impairment of renal funtion
SCR measures the:
amt of creatinine in the blood
Creatinine is a:
catabolic product of creatine phosphate
Creatine phosphate is used in:
skeletal muscle contraction
Daily production of creatine, ultimately creatinine depends on:
muscle mass
Creatinine is excreated soley by the:
- kidneys
Creatinine is directly measures:
renal excretory funtion
Causes for elevations in creatinine levels:
- dehydration
- glomerulonephritis
- pylonephritis
- acute tubular necrosis (ATN)
- urinary obstruction
Creatinine is slightly increased after:
- meals
- esp after large amts of meat
SCR and BUN are used to diagnose:
impaired renal funtion
Creatinine levels are affected very little by:
hepatic function
Creatinine test is used as an approximation of:
GFR (glomerular filtration rate)
Elevation in creatinine indicates:
chronicticity of disease process
Creatinine/BUN ratio: Normal:
- 6 -25
- 15.5 is optimal