Based on a previous analysis of game design patterns and related effects in an educational scenario, the following paper presents an experimental study. In the study a course for Basic Life Support training has been evaluated and two game design patterns have been applied to the course. The hypotheses evaluated in this paper relate to game design patterns that have been used for learning functions, expected to enhance the learning outcome and user experience. An experimental design has been carried out in order to get insight about effects of individual and combined game patterns in a Basic Life Support course. Based on the according educational objectives, the effects of two different game design patterns relevant for learning (a timer pattern and a score pattern) have been evaluated. This game was prototypically developed targeting the application on the healthcare domain (basic life support). The results show a significant interaction effect of the two patterns on the learning gain, as well as a strong covariate influence of the learners' age.