Understanding the Results: What a Positive PPD Test Looks Like
When it comes to detecting tuberculosis (TB) infection, the Purified Protein Derivative (PPD) test, also known as the Mantoux test, is a widely used method. This skin test involves injecting a small amount of PPD into the forearm, and after 48 to 72 hours, the test is read by a healthcare professional. The results of … Read more