🦠microbiology review

Nucleic acid amplification test

Written by the Fiveable Content Team • Last updated August 2025
Written by the Fiveable Content Team • Last updated August 2025

Definition

A nucleic acid amplification test (NAAT) is a molecular technique used to detect and amplify specific sequences of DNA or RNA. It is highly sensitive and specific, making it invaluable for diagnosing infectious diseases.

5 Must Know Facts For Your Next Test

  1. NAATs can amplify even small amounts of genetic material, allowing for early detection of pathogens.
  2. Polymerase Chain Reaction (PCR) is the most common type of NAAT.
  3. NAATs are commonly used to diagnose viral infections such as HIV, HPV, and COVID-19.
  4. The process involves cycles of heating and cooling to denature DNA, anneal primers, and extend new DNA strands.
  5. Real-time PCR (qPCR) allows for the quantification of DNA or RNA in real-time during the amplification process.
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