Why is it important to know how much substance was taken in cases of suspected drug use?

Understanding how much substance was taken in cases of suspected drug use is critical because it directly impacts the level and type of medical attention required for the individual involved. Different substances can have varying effects depending on the quantity consumed, and knowing the specific amount can help medical personnel assess the situation more accurately. For instance, a small dose of one substance may lead to a manageable situation, whereas a larger dose may require immediate and intensive medical intervention. This information is essential for ensuring that the individual receives appropriate care promptly, which can be a matter of life and death in severe cases.

Other considerations, such as reporting to authorities or informing fellow passengers, are secondary to the immediate health needs of the individual involved. While they may be relevant in specific scenarios, the primary concern in situations of suspected drug use is the immediate health response dictated by the quantity of the substance taken.