Final answer:
To care for a conscious infant who is choking, position the infant with the head lower than the chest and alternate between 5 back blows and 5 chest thrusts until the object is expelled.
Step-by-step explanation:
When providing care to a conscious infant who is choking, the most appropriate action is positioning the infant so the head is lower than the chest. This allows gravity to assist in dislodging the object when performing back blows and chest thrusts.
For an infant, you should deliver 5 back blows with the heel of your hand between the infant's shoulder blades while supporting their head and neck. Then, turn the infant over and perform 5 chest thrusts using two fingers placed in the center of the chest. This sequence is repeated until the object is expelled or the infant becomes unresponsive.