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.
1 When one rescuer is performing CPR the ratio of compressions to ventilations is 30:2. 2  When two rescuers are performing CPR the ratio is 30:2 for adults and 15:2 for children, until an advanced airway is in place. 3  This results in more compressions per minute and limits hyperventilation.lsewhere in the body during cardiac arrest, blood flow ceases and a large volume of blood accumulates in the veins of the abdomen and thorax. This venous blood has gone through the capillary network and has released only 20%-30% of its oxygen content.