Display a range on a number line with a value

Is there a standard or good way to display a range of values (lower bound and upper bound) along with a particular value. The particular value might be too low (below the lower bound), too high (above the upper bound, or normal (between the bounds)? As in results from a blood test. For example, here's a very crude drawing of those 3 scenarios: enter image description here

Maybe a timeline type of interface?