American Medical Certification Association (AMCA) Phlebotomy Practice Exam

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What is used to collect DNA samples by swabbing the inside of a patient's cheek?

  1. Saliva test

  2. Urine sample

  3. Buccal swab

  4. Blood sample

The correct answer is: Buccal swab

The method used to collect DNA samples by swabbing the inside of a patient's cheek is known as a buccal swab. This technique is effective because the inside of the cheek contains epithelial cells that hold DNA, which can be easily collected without the need for more invasive procedures like blood draws. The buccal swab is not only simple to perform but also minimizes discomfort for the patient, making it an accessible choice for DNA collection in various medical and forensic contexts. Collecting DNA in this manner provides a reliable source of genetic material while being less intrusive than other methods.

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