Decrease (-) Restore Default Increase (+)
Bookmark and Share

Related Information

Search Health Information   
 

Nasopharyngeal culture

Definition

Nasopharyngeal culture is a sample of secretions from the uppermost part of the throat, behind the nose, to detect organisms that can cause disease.

Alternative Names

Culture - nasopharyngeal; Swab for respiratory viruses; Swab for Staph carriage

How the test is performed

You will be asked to cough before the test begins and then tilt your head back. A sterile cotton-tipped swab is gently passed through the nostril and into the nasopharynx, the part of the pharynx that covers the roof of the mouth. The swab is quickly rotated and then removed.

How to prepare for the test

There is no special preparation necessary.

How the test will feel

You may experience slight discomfort and may gag.

Why the test is performed

The test identifies viruses and bacteria that cause upper respiratory tract symptoms. Nasopharyngeal cultures are useful in identifying respiratory viruses, and specific bacteria such as:

  • Bordetella pertussis
  • Neisseria meningitidis
  • Staphylococcus aureus

The culture may be used to help determine which antibiotic therapy is appropriate.

Normal Values

The presence of organisms commonly found in the nasopharynx is normal.

What abnormal results mean

The presence of any disease-causing virus, bacteria, or fungus means these organisms may be involved in your infection. Sometimes organisms like Staphylococcus aureus can be present without causing disease, but the test can identify resistant strains of this organism (methicillin-resistant Staphylococcus aureus, or MRSA) and patients can be isolated when necessary.

What the risks are

There are no risks.

References

Hewlett EL. Whooping cough and other Bordetella infections. In: Goldman L, Schafer AI, eds. Cecil Medicine. 24th ed. Philadelphia,PA: Saunders Elsevier; 2011:chap 321.


Review Date: 12/12/2011
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Denis Hadjiliadis, MD, Assistant Professor of Medicine, Division of Pulmonary, Allergy and Critical Care, University of Pennsylvania, Philadelphia, PA. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
adam.com
 

Medical Care

Cancer
Pregnancy & Prenatal Classes
Weight Loss
Orthopedics
Heart Disease
Neurology
Women's Health
More Medical Care

Locations

Hospitals
Immediate Care
Health Centers
Emergency Room
Doctors Offices
Specialists
Affiliate Hospitals

Patients and Visitors

MyChart
Pay Your Bill
Request an Appointment
Get Healthy
Support Groups
Fitness Groups
Mobile Applications
Clinical Trials
Online Nursery
Classes and Events
Send an eCard
Patient Stories
Places to Stay

About Us

Quality Report 
Careers
Ways to Help
Community Outreach
Contact Us
(502) 629-1234

Connect with us

© 2014 Norton Healthcare
Serving Kentucky and Southern Indiana