- Aim for a total of 1-4 collections with a standard target CD34 cell dose of > 5 x 10 x 106/kg and an optimal target CD34 cell dose of > 10 x 106/kg. The minimum CD34 cell dose is > 3 x 106/kg. Collections should continue until 10 x 106/kg CD34 (+) cell dose is achieved unless not clinically feasible.