A health record system is described that utilizes a data transfer methodology for transmitting and storing medical test results of patients of a health clinic that avoids the use of complex IT environments. The health record system performs medical tests using medical instrumentation devices located at a health clinic that lacks connectivity to a network. The results of the medical test are printed in the form of a visual code that is non-human readable. A client device scans the visual code and the results of the medical test are extracted from the visual code and sent to a cloud environment for storage when the client device has network connectivity.