System and method for microdose injection

A method for injecting a fluid, comprising:

• providing a syringe assembly, the syringe assembly comprising
• a syringe body having proximal and distal ends, a syringe interior, a distal needle interface at the distal end thereof, and a syringe flange at the proximal end thereof,
• an injectable fluid disposed in the syringe interior,
• a stopper member disposed in the syringe interior,
• a plunger member coupled to the stopper member,
• a finger flange removably coupled to the syringe flange, the finger flange including a proximally directed screw,
• a rotatable member disposed on the proximally directed screw,
• a plunger cap removably coupled to the rotatable member, and
• a needle assembly having a needle coupled to the distal needle interface of the syringe body;
• rotating the plunger cap relative to the proximally directed screw to rotate the rotatable member relative to the proximally directed screw to thereby force a portion the injectable fluid from the syringe interior through the needle to prime the needle for injection;
• removing the plunger cap from the rotatable member to thereby expose a proximal end of the plunger member;
• and
• applying a distally directed force to the proximal end of the plunger member to expel another portion of the injectable fluid from the syringe interior through the needle.