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A reference range is usually defined as the set of values 95 percent of the normal population falls within ... (g/L or mmol/L). ... g/L > 50 years: 0.47 [5] 2.1 [5]
The normal serum creatinine (sCr) varies with the subject's body muscle mass and with the technique used to measure it. For the adult male, the normal range is 0.6 to 1.2 mg/dl, or 53 to 106 μmol/L by the kinetic or enzymatic method, and 0.8 to 1.5 mg/dl, or 70 to 133 μmol/L by the older manual Jaffé reaction.
The value is usually reported as a concentration in units of mEq/L (mmol/L), with positive numbers indicating an excess of base and negative a deficit. A typical reference range for base excess is −2 to +2 mEq/L. [1]
In general, the normal range for most people (fasting adults) is about 4 to 6 mmol/L or 80 to 110 mg/dL. (where 4 mmol/L or 80 mg/dL is "optimal".) A subject with a consistent range above 7 mmol/L or 126 mg/dL is generally held to have hyperglycemia, whereas a consistent range below 4 mmol/L or 70 mg/dL is considered hypoglycemic .
Results from large trials in 2008–09 suggested that a target below 53 mmol/mol (7.0 DCCT %) for older adults with type 2 diabetes may be excessive: Below 53 mmol/mol, the health benefits of reduced A1c become smaller, and the intensive glycemic control required to reach this level leads to an increased rate of dangerous hypoglycemic episodes.
The reference range provided by the particular lab that performed the testing should always be used to interpret the results. [3] Also, some healthy people may have values outside of the "normal" range provided by any lab. [citation needed] Modern analyzers use ion-selective electrodes which give a normal anion gap as <11 mEq/L. Therefore ...
[4]: 427 The normal range for blood concentration of 25-hydroxyvitamin D in adults is 20 to 50 nanograms per milliliter (ng/mL; equivalent to 50 to 125 nmol/L). Blood levels necessary to cause adverse effects in adults are thought to be greater than about 150 ng/mL.
In women aged between 19 and 64 years, the mean serum vitamin B 12 concentration was slightly lower than men (298 pmol/L), with 3.3% having low vitamin B 12 concentrations < 150 pmol/L. [162] In Germany, a national survey in 1998 was conducted in 1,266 women of childbearing age.