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Tests and diagnosis
By Mayo Clinic staffDuring the physical exam, your doctor will:
- Look at the condition of your child's throat, tonsils and tongue
- Feel your child's neck to determine if lymph nodes are enlarged
- Assess the appearance and texture of the rash
Throat swab
If your doctor suspects strep as the cause of your child's illness, he or she will also swab the tonsils and back of your child's throat to collect material that may harbor the strep bacteria. Tests for the strep bacterium are important because a number of conditions can cause the signs and symptoms of scarlet fever, and these illnesses may require different treatments. If there are no strep bacteria, then some other factor is causing the illness.
- Scarlet fever. Centers for Disease Control and Prevention. http://www.cdc.gov/ncidod/dbmd/diseaseinfo/scarletfever_g.htm. Accessed Jan. 5, 2011.
- Ferri FF. Scarlet fever. In: Ferri FF. Ferri's Clinical Advisor 2011: Instant Diagnosis and Treatment. Philadelphia, Pa.: Mosby Elsevier; 2011. http://www.mdconsult.com/books/about.do?eid=4-u1.0-B978-0-323-05610-6..C2009-0-38600-6--TOP&isbn=978-0-323-05610-6&about=true&uniqId=230100505-53. Accessed Jan. 5, 2011.
- Habif RP. Exanthems. In: Habif TP. Clinical Dermatology: A Color Guide to Diagnosis and Therapy. 5th ed. Edinburgh, U.K.; New York, N.Y.: Mosby Elsevier; 2010. http://www.mdconsult.com/books/about.do?about=true&eid=4-u1.0-B978-0-7234-3541-9..X0001-6--TOP&isbn=978-0-7234-3541-9&uniqId=230100505-57. Accessed Jan. 5, 2011.
- Pichichero ME. Complications of streptococcal tonsillopharyngitis. http://www.uptodate.com/home/index.html. Accessed Jan. 5, 2011.
- Greer MA. Group A Streptococcus. In: Kliegman RM. Nelson Textbook of Pediatrics. 18th ed. Philadelphia, Pa.: Saunders Elsevier; 2007. http://www.mdconsult.com/das/book/body/208746819-6/0/1608/0.html. Accessed Jan. 5, 2011.
- Fort GG, et al. Rheumatic fever. In: Ferri FF. Ferri's Clinical Advisor 2011: Instant Diagnosis and Treatment. Philadelphia, Pa.: Mosby Elsevier; 2011. http://www.mdconsult.com/books/about.do?eid=4-u1.0-B978-0-323-05610-6..C2009-0-38600-6--TOP&isbn=978-0-323-05610-6&about=true&uniqId=230100505-53. Accessed Jan. 5, 2011.
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