Primary prevention can be referred to as any action taken to prevent something bad from happening. From the question, Erik has factored the spring-loaded covers as a preventive measures against shock for children. As long as this measure was to ensure no child is affected by electric shock, then it is classified under primary prevention. Secondary prevention tries to reduce or eliminate a number of accident that may have occurred in the past.
First aid kits may not contain prescription or over-the-counter medications such as aspirin, ibuprofen, decongestants, sinus relief, etc. These are not first aid items.
