The depiction of the standard leads and their relationship to the cardiac axis is below. Note that lead I is at zero degrees, lead II is at +60 degrees, and lead III is at +120 degrees.

See the ECG basics section on determining axis for details. If the QRS is upright in lead I and downward (negative) in lead aVF, then the axis is between 0 and -90 degrees, likely left axis deviation.

Matt Campbell connected for four hits to lead Axis Therapy in a 19-15 win over CJ’s Hangout in Week 2 of the city of Destin’s Coed Softball League at Morgan Sports Center. Campbell hit two ...

The vast majority of desktop 3D printers in use today use one or more lead screws for the Z-axis. Sometimes you need to think outside of the box to make an improvement on something. Sometimes you ...