The typical reference range is between 30 seconds and 50 s (depending on laboratory).

The combination therefore helps maintain a normal reference range for potassium.

However, reference ranges may also be established by taking samples from the whole population, with or without diseases and conditions.

Thus, the standard reference range for this example is estimated to be 4.4 to 6.4.

Furthermore, for most toxins, the standard reference range is generally lower than the level of toxic effect.

About half the patients had concentrations below the lower end of the reference range.

There is no standard reference range available for this test.

Hence, each laboratory reports will include the patient's specific reference range for the test.

Depending on the purposes of the valuation, this may not provide an appropriate reference range.

Normal reference range in human red blood cells is 11-15%.