Contribution Calculations. CPP contributions are based on an income range that changes annually, based on current average wage data for the country. The lower income floor is set at $3,500, while the upper amount changes annually. In 2013, this amount is $51,100.The rate for CPP contributions is 9.9 percent.ontribution Calculations. CPP contributions are based on an income range that changes annually, based on current average wage data for the country. The lower income floor is set at $3,500, while the upper amount changes annually. In 2013, this amount is $51,100. The rate for CPP contributions is 9.9 percent.
1 Symptoms can include confusion, disorientation, memory loss, headache, and brief loss of consciousness.  Moderate: person is lethargic; eyes open to stimulation. Loss of consciousness lasting 20 minutes to 6 hours. Some brain swelling or bleeding causing sleepiness, but still arousable.
Concussion (mild traumatic brain injury) Overview. A concussion is a mild traumatic brain injury caused by a blow or ding to the head. Common in falls, sports, and car crashes, concussions can temporarily affect the brain, causing confusion and problems with memory, speech, vision, or balance. The person may appear fine at first but may show symptoms hours or days later. If left undiagnosed, a concussion may place a person at risk of developing second-impact syndrome, a potentially fatal injury that occurs when an athlete sustains a second head injury before a previous head injury has healed.