Scenario 1A patient with a urine creatinine of 25 mg/dL who has reportedly been taking codeine has codeine present in her urine but no morphine present. Which statement is true?

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Scenario 1
A patient with a urine creatinine of 25 mg/dL who has reportedly been taking codeine has codeine present in her urine but no morphine present. Which statement is true?

Please select the single best answer