Final answer:
A phlebotomist preparing to collect specimens to determine peak and trough levels of a medication should follow proper procedures for collecting and handling blood samples.
Step-by-step explanation:
When preparing to collect specimens to determine peak and trough levels of a medication, a phlebotomist should take the following action:
- Follow the proper procedure for collecting blood samples, including using appropriate equipment and techniques.
- Ensure that the samples are properly labeled and stored.
- Collect blood samples at the appropriate times, according to the medication's dosing schedule.
By taking these actions, the phlebotomist can accurately measure the peak and trough levels of the medication in the patient's blood, which provides valuable information for monitoring the medication's effectiveness and safety.