Blood Sampling

This research is a three-group, randomized controlled experimental study designed to determine the effect of two different therapeutic interventions applied during blood sampling on pain, anxiety, and fear levels in children aged 5-7 years. Children participating in the study will be randomly divided into three groups: 1. Group (Experiment 1): Distraction method using betta fish observation 2. Group (Experiment 2): Distraction method using hand puppets 3. Group (Control): Routine clinical practice (without any therapeutic intervention) Before, during, and after blood sampling, children's pain level (FLACC scale), fear level (child fear scale), and anxiety level (child anxiety scale) will be evaluated.

The purpose of this study is to see whether dried blood spot (DBS) samples can measure inflammatory biomarkers as accurately as venous blood samples. Investigators will be measuring inflammatory biomarkers changes obtained in DBS compared with paired venous blood samples following a controlled physiological stressor (i.e. after a vaccine or other planned event that can cause a temporary rise in inflammation). These findings will help understand whether DBS can be a reliable alternative to traditional blood draws in future research and healthcare.