To quantify the amount of aspirin used, procedures for urine extraction would need to be followed.
You can check for salicylate in urine with the salicylate screening test. A salicylate test may be prescribed if a patient exhibits symptoms of aspirin or other salicylate poisoning in order to help identify an overdose.
Salicylates are broken down by being glucuronidated and conjugated to salicyluric acid. About 10% of salicylates are excreted as salicylic acid in the urine, though this percentage might rise and fall depending on the pH of the urine (alkaline vs. acidic).
Learn more about salicylate poisoning: https://brainly.com/question/6649871
#SPJ4