Schwartz Formula K Value

Using the original schwartz formula 0 55 x height scr with a creatinine value from a method with calibration traceable to idms will overestimate gfr by 20 to 40.

Schwartz formula k value. Schwartz gj feld lg langford dj. Schwartz gj haycock gb edelmann cm jr spitzer a. The schwartz theory of basic values identifies ten broad personal values which are differentiated by the underlying goal or motivation. Values 75 should be reported as such rather than as a specific number.

Measurement and estimation of gfr in children and adolescents. The equation must be applied to a stable creatinine value and is inaccurate when serum creatinine is rapidly changing. Remember you never can have a negative algebraic difference. In 2009 schwartz et al.

This formula may be most accurate in the range of 15 to 75 ml min per 1 73 m 2. The formula is also correct. Values influence action when they are relevant in the context hence likely to be activated and important to the actor these six features are relevant to all values. This formula tends to overestimate the actual creatinine clearance and should be used with caution.

Height is measured in cm. J am soc nephrol. Adapted the traditional schwartz equation to children and adolescents but did not find different k coefficients between children and adolescents k 36 5 for all patients. The equation is not useful in children with reduced muscle mass amputations cachexia or those taking creatine supplements.

We reevaluated the coefficient of the 2009 schwartz formula according to sex and age in a pediatric population. Serum creatinine is measured in mg dl. A simple estimate of glomerular filtration rate in children derived from body length and plasma creatinine. This led to a schwartz lyon k coefficient close to that of the 2009 schwartz formula for boys 13 years old k 36 5 but to a lower k coefficient k 32 5 in all girls and in boys 13.

Crcl k ht cr serum. K value vertical curve clicking the find button produced 722 hits. Found it in an old surveying book. Ten basic personal values.

The third one or maybe the second depending on how one counts hits. A simple estimate of glomerular filtration rate in full term infants during the first year of life. Measured creatinine should be in steady state. Schwartz gj munoz a schneider.

This formula applies to enzymatic serum creatinine measurements calibrated to reference measurements by isotope dilution mass spectroscopy idms but not to alkaline picrate jaffe methods even those traceable to idms. The original schwartz formula 1 2 is.