Upper Respiratory Tract Culture (with Sensitivity to Specific Pathogens)

What Is an Upper Respiratory Culture Used For?

Upper respiratory cultures are often used when you have symptoms like sore throat, runny nose, cough, or sinus congestion that may indicate an infection. They help doctors identify the specific germs causing your symptoms, guiding treatment decisions like antibiotics or antifungal medications.

How Is the Test Performed?

A healthcare provider will collect a sample from your nose, throat, or sinuses using a swab. The swab is then sent to a lab, where it’s grown in a controlled environment to see if any bacteria or fungi multiply over time.

What Does the Test Result Mean?

Results may show the presence of specific bacteria (e.g., *Streptococcus*, *Haemophilus*) or fungi, or they may indicate no growth if your symptoms are viral or self-limiting. The lab also often provides antibiotic sensitivity data to guide treatment.

Common Causes of Positive Results

Positive cultures typically occur with bacterial infections like strep throat, sinusitis, or ear infections. Fungal cultures may be needed if symptoms persist despite antibiotics or if you have a weakened immune system.