Environmental Factors: Performance of essential functions may require exposure to adverse environmental conditions, such as dirt, dust, pollen, odors, wetness, humidity, rain, fumes, temperature and noise extremes, machinery, vibrations, electric currents, traffic hazards, bright/dim light, hazardous materials, toxic agents, violence, disease, or pathogenic substances. Mathematical Aptitude: Requires the ability to perform addition, subtraction, multiplication, division, and basic algebra; the ability to calculate decimals and percentages; the ability to utilize principles of fractions; the ability to interpret graphs; and the ability to perform calculations related to drug dosage and drip rates.