RSV Testing in NYC and Long Island

RSV testing

RSV can cause a cold-like illness and can also affect the lower airways. Infants, older adults and people with certain medical conditions can become seriously ill. An RSV test may identify the virus, but an assessment of breathing and hydration remains essential.

How rSV testing works

RSV is tested with a respiratory specimen using a molecular or antigen method. Molecular tests are more sensitive. The performance of antigen tests differs by age and assay. A negative result does not guarantee that RSV or another cause of breathing trouble is absent.

Eligibility: RSV testing

Testing is selected when it would help clinical management or infection-control decisions. An infant with concerning symptoms needs care even if a household contact's test is negative. Prevention products and vaccines have separate age and eligibility criteria and do not treat an existing illness.

What to expect: RSV testing

The clinician asks about symptom onset, feeding, wet diapers, breathing, prematurity and medical conditions. An examination can determine whether care at home is appropriate or a hospital is needed. The test result is only one part of that decision.

Preparing for your appointment

Bring the child's age, relevant birth history, symptom timeline and medicines. For an adult, bring the medical history and current medication list. A nasal swab generally needs no fasting. Ask the clinic which ages it currently assesses.

Risks and when to seek help

Call 911 for severe breathing difficulty, blue or gray lips, breathing pauses or unresponsiveness. An infant who feeds poorly or has much fewer wet diapers needs prompt assessment. Do not wait for a test result if breathing is worsening.

Follow-up and treatment review

Follow the clinician's hydration and monitoring plan. Return for worsening breathing, reduced intake or new fever concerns. An RSV test does not rule out pneumonia or another infection, and antibiotics are not routinely used for the virus itself.

Appointments, costs and coverage

Confirm RSV testing, pediatric age limits and clinician availability before travel. Do not assume an adult testing location provides newborn care. Ask about the assay and turnaround instead of relying on an older rapid-testing statement.

Medical sources

• AAP: Fever and your baby
• USPSTF A and B recommendations
• CDC: Testing for respiratory viruses
• CDC: RSV diagnostic testing
• AAP: When to call emergency medical services
• HHS: Before a telehealth visit