Final answer:
For infant 1 rescuer CPR, hand placement involves using the flat portion of one hand on the sternum between the lines at T4 and T9. Proper compression of the chest is essential, and CPR should be performed until the patient regains spontaneous contraction or is declared dead by a healthcare professional.
Step-by-step explanation:
For infant 1 rescuer CPR, the hand placement involves using the flat portion of one hand on the sternum. The proper position for hand placement is between the lines at T4 and T9. By applying pressure to the sternum in this area, it is possible to manually compress the blood within the heart and push it into the circulation in order to maintain blood flow until the heart resumes beating.
It is important to note that the current standards for CPR call for compression of the chest at least 5 cm deep and at a rate of 100 compressions per minute. The emphasis is on performing high-quality chest compressions, rather than providing artificial respiration. CPR should be performed until the patient regains spontaneous contraction or is declared dead by an experienced healthcare professional.