iPhone icon for medical application

The application name is not decided yet. Our company is: http://www.weburban.com

The client application tracks Blood Glucose levels in diabetic patients. People who are diabetic need to track their insulin levels daily.
The server application takes all these results and tracks them. Please experiment with different looks using the keywords.

Users will be serious and the tone should be very professional. These are serious medical applications. The audience will be people with Diabetes and Doctors.

Technical requirements:
Please design one application icon for the client version and one application icon for the server version. The two icons can be very similar with small distinguishing features that separate the server version from the client version. (Please do not add gloss effects or rounded corners)

Icon size should look good at the following dimensions (in pixels):
512 x 512
72 x 72
57 x 57

I need two versions of the icon:
- One version for the client app
- One version for the server app

Synopsis:
The client application tracks Blood Glucose levels in diabetic patients. People who are diabetic need to track their insulin levels daily.
The server application takes all these results and tracks them. Please experiment with different looks using the keywords.

Keywords:
Professional, graph, medical, calendar, blood drop, clean, nurse, server, computer chip.