BLS EXAM Q&A
Compression to ventilation ratio for 1 or 2 person rescuers for adults - Answer-30:2
1 rescuer Compression to ventilation ratio for child and infant - Answer-30:2
Compression to ventilation ratio for 2 or more rescuer infant and child CPR - Answer-
15:2
Depth of compressions for adult - Answer-At least 2 inches
Depth of compressions for child - Answer-At least 1/3 depth of the chest, about 2 inches
Depth of compressions for infant - Answer-At least 1/3 depth of the chest, about 1.5
inches
Rate of compressions - Answer-100-120 per minute
When do you call 911 for an adult victim who needs CPR? - Answer-If you are alone
with no mobile phone, leave the victim to call 911 and get the AED before beginning
CPR. Otherwise, send someone and begin CPR immediately, use the AED as soon as
it is available
When do you call 911 for a child or infant who you witnessed collapse? - Answer-same
as for the adult
When do you call 911 for a child or infant that you did not witness collapse? - Answer-
Give 2 minutes CPR, leave the victim and call 911 and get the AED, return to
child/infant and resume CPR and use the AED as soon as it is available
Hand placement for compressions on an adult - Answer-2 hands on the lower half of the
breastbone but not over the xyphoid process
Hand placement for compressions on a child - Answer-2 hands or 1 hand (optional for
very small child) on the lower half of the breastbone (sternum) but not over the xyphoid
process
Hand placement for compressions for 1 person infant CPR - Answer-1 Rescuer - 2
fingers or 2 thumbs in the center of the chest, just below the nipple line
Hand placement for compressions for 2 person infant CPR - Answer-2 thumb-encircling
hands in the center of the chest, just below the nipple line
chest recoil - Answer-Allows blood to flow into the heart; allow for full recoil after each
compression, do not lean on the chest after each compression
Compression to ventilation ratio for 1 or 2 person rescuers for adults - Answer-30:2
1 rescuer Compression to ventilation ratio for child and infant - Answer-30:2
Compression to ventilation ratio for 2 or more rescuer infant and child CPR - Answer-
15:2
Depth of compressions for adult - Answer-At least 2 inches
Depth of compressions for child - Answer-At least 1/3 depth of the chest, about 2 inches
Depth of compressions for infant - Answer-At least 1/3 depth of the chest, about 1.5
inches
Rate of compressions - Answer-100-120 per minute
When do you call 911 for an adult victim who needs CPR? - Answer-If you are alone
with no mobile phone, leave the victim to call 911 and get the AED before beginning
CPR. Otherwise, send someone and begin CPR immediately, use the AED as soon as
it is available
When do you call 911 for a child or infant who you witnessed collapse? - Answer-same
as for the adult
When do you call 911 for a child or infant that you did not witness collapse? - Answer-
Give 2 minutes CPR, leave the victim and call 911 and get the AED, return to
child/infant and resume CPR and use the AED as soon as it is available
Hand placement for compressions on an adult - Answer-2 hands on the lower half of the
breastbone but not over the xyphoid process
Hand placement for compressions on a child - Answer-2 hands or 1 hand (optional for
very small child) on the lower half of the breastbone (sternum) but not over the xyphoid
process
Hand placement for compressions for 1 person infant CPR - Answer-1 Rescuer - 2
fingers or 2 thumbs in the center of the chest, just below the nipple line
Hand placement for compressions for 2 person infant CPR - Answer-2 thumb-encircling
hands in the center of the chest, just below the nipple line
chest recoil - Answer-Allows blood to flow into the heart; allow for full recoil after each
compression, do not lean on the chest after each compression
