The Lead Level Analysis using Atomic Absorption Spectroscopy (AAS) with Flame and Graphite Furnace Atomization (GFA) modes is an important tool for measuring lead concentrations in biological or environmental samples. This test is used to determine lead levels in blood or urine, helping assess the risks of lead poisoning and exposure to this toxic substance. The analysis is performed using two techniques: the traditional flame mode, which is typically used for measuring higher concentrations, and the more sensitive GFA mode, which is employed for detecting very low levels of lead. Based on the results of this analysis, doctors can make informed decisions about necessary therapeutic interventions, guide patients toward lifestyle changes to reduce lead exposure, and promote public health by preventing health risks associated with lead toxicity.