Nasopharyngeal culture

The Nasopharyngeal Culture

Purpose: A nasopharyngeal culture is a medical procedure in which a sample of mucus from the nasal passages and/or throat is collected to test for the presence of bacteria or viruses.

Preparation: Before the test, you may be asked to blow your nose to clear out your sinuses. Your doctor may also recommend gargling with water or a saline solution to wash away any bacteria or viruses that may be present in your mouth or throat.

Procedure: During the procedure, your doctor will use a swab to collect a sample of mucus from the area between your nose and throat. This swab will then be sent to a laboratory to be tested for the presence of bacteria or viruses.

Types: There are two types of nasopharyngeal cultures. The first type of culture is a “blind” culture, in which the sample is taken without gross visualization of the upper respiratory tract. The second type of culture is an “endoscopic” culture, in which a scope is inserted into the nasal passages to visual the area and take a more thorough sample.

Risks: As the procedure involves inserting a swab into the nasal passages, it may cause some discomfort and irritation. Additionally, it is possible that the swab can push any bacteria present in your nose back into your throat, increasing the risk of infection.

Why: Nasopharyngeal cultures are used to diagnose infections in the upper respiratory tract, such as sinusitis or tonsillitis. It can also be used to diagnose conditions such as influenza, rhinovirus, mononucleosis, and strep throat.

When: Your doctor may recommend a nasopharyngeal culture if you are experiencing symptoms such as nasal congestion, sore throat, fever, cough, or difficulty breathing, as these can all be signs of an infection in the upper respiratory tract.