Case Study........................................................................................................................................... 30. Synthesis of Instructional Design Research........................................................................................
Here are some technical specifications to keep in mind for CPR on the Adult when alone: 1  Attempt a 30 to 2 ratio. Thatâs 30 compressions, briefly pause and give 2 ventilations (breaths), then repeat until help arrives. 2  Try to maintain a rate of compressions at 100/min.  Try to keep interruptions of CPR to a minimum.
Pressure within the venous system (venules & veins) Pressure gradient is low, from the venules to the right atrium it is only around 18 mm Hg. As the blood flows away from the heart (left ventricle) the CP decreases and is almost 0 mm Hg when it returns back to the right atrium.