The pre and post organophosphate spraying measurements are considered to represent the "healthiest" and "unhealthiest" condition that the vegetable farmers can be expected to be in, respectively. Thus, for the present study the pre and post organophosphate spraying measurements are expected to resemble the results among the farmers after having worked with organophosphates wearing the LAPPE solution and DP solution, respectively. A sample size suitable to the study resources was gained when applying the pre and post results of the number of acute organophosphate poisoning symptoms.