MRSA Tests
MRSA tests identify the presence of methicillin-resistant Staphylococcus aureus, a type of staph bacteria that is resistant to common antibiotics.
What are MRSA tests?
A MRSA test looks for MRSA bacteria in a sample of fluid or tissue, often taken from the nose or a wound. While many people carry staph bacteria on their skin or in their noses without harm, MRSA can cause serious infections if it enters the body through a cut or scrape.
Unlike regular staph infections, MRSA is resistant to the antibiotics typically used for treatment. MRSA can spread through contact with contaminated objects, sharing personal items like towels or razors, or close personal contact with an infected individual.
Why do I need a MRSA test?
You may need this test if you show symptoms of an infection. A skin infection may appear as red, swollen, painful, or warm-to-the-touch bumps that may be filled with fluid or pus. Symptoms of a more serious infection in the bloodstream or other parts of the body include:
- Fever
- Chills
- Headache
- MRSA rash
What happens during a MRSA test?
A provider will collect a sample using one of the following methods:
- Wound sample: A special swab is used to collect fluid from the wound site.
- Nasal swab: A swab is used to take a sample from your nose.
- Blood test: A sample is taken from a vein in your arm.
- Urine test: You provide a sterile sample in a cup.
Samples are sent to a lab for a bacteria culture, which typically takes 24–48 hours. Faster molecular tests on nasal swabs can sometimes provide results in as little as five hours.
Prevention and Antibiotic Resistance
To lower your risk of MRSA, wash your hands frequently, keep cuts clean and covered, and do not share personal items. To prevent antibiotic resistance, always finish your prescribed antibiotics, do not use antibiotics for viral infections, and never use someone else's medication.