How do I calculate Coronary Perfusion Pressure using LabChart Macros during Cardio-Pulmonary Resuscitation (CPR) ?

One of the more powerful but least understood features of LabChart is the support for macros. Macros allow the user to automate repetitive tasks by specifying macro commands supported in LabChart. This Solution shows how a macro can be written to solve a fairly complex problem, in this case, how to calculate Coronary Perfusion Pressure (CPP) during Cardio-Pulmonary Resuscitation (CPR).

CPP is the pressure difference between aortic diastolic pressure and right atrial pressure. CPP indicates the effectiveness of CPR during cardiac arrest. There are several different methods to calculate CPP. Using macros in LabChart can help to compare these methods efficiently using the same data set especially when the size of the data is considerable. The macro in this tip uses the End-diastolic method to calculate CPP (Otlewski 2009).

Please reference the attached PDF (Calculating Coronary Perfusion Pressure) for step-by-step instructions to calculate CPP using LabChart Macros.