A red blood cell's life span is approximately 4 months. I am a Leukemia patient. Red Blood cells are being created all of the time, if they lasted 4 months, we would overdos â¦ e on them.They last very short periods of time,,,,mere seconds. red blood cell's life span is approximately 4 months. I am a Leukemia patient. Red Blood cells are being created all of the time, if they lasted 4 months, we would overdos â¦ e on them.
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The customer support phone number of Pearson Vue is 877-435-1414 (Click phone number to call). The postal and official address, email address and phone number (helpline) of Pearson Vue Service Center and Pearson Vue customer service phone number is given below.