Group A Streptococcus (GAS): Diagnosis
Über den Vortrag
Der Vortrag „Group A Streptococcus (GAS): Diagnosis“ von John Fisher, MD ist Bestandteil des Kurses „Upper Respiratory Infections“. Der Vortrag ist dabei in folgende Kapitel unterteilt:
- Diagnosis – Group A Streptococcus
- Acute Pharyngitis – Management
- Acute Pharyngitis – Etiology
Quiz zum Vortrag
Which of the following conclusions is most appropriate when the rapid antigen detection test for group A Streptococcus is used?
- Ruling in disease if test is positive
- Ruling out disease if test is negative
- Making a definitive diagnosis
- Determining antibiotic sensitivity
- Determining severity of disease
A 12-year-old boy has sore throat, fever, tender and swollen anterior cervical nodes, and bilateral tonsillar exudates for 2 days. He has no coryza, conjunctivitis, cough, hoarseness, anterior stomatitis, discrete ulcerative lesions or vesicles, or diarrhea. What is the next best step in management?
- Obtain a rapid antigen detection test
- Initiate antibiotics
- Obtain blood cultures
- Prescribe acetaminophen
- Refer for hospitalization
A 29-year-old patient has 4 days of sore throat and right sided ear ache. She denies any fevers or cough. On physical examination, her ears appear normal except for slight clear air fluid level behind the tympanic membrane on the right. She has no tonsillar exudate, or anterior cervical lymphadenopathy. Based on the modified Centor criteria, what is the predicted risk of her having group A Streptococcal pharyngitis?
- Less than 10%
- 15-32%
- 50-55%
- 60-80%
- No risk
A 52-year-old woman presents to your office because of a sore throat, cough, and fatigue for the last five days. On physical examination, she is afebrile, no tonsillar exudates or swelling observed, and she does not have palpable lymphadenopathy. What is her score on the modified Centor criteria?
- -1
- 0
- 1
- 2
- 3
A 7-year-old boy with no known drug allergies is brought into the primary care office for 3 days of sore throat and fevers and a slight "tummy ache" starting today. His mom states that he has been refusing most food and drink because he states it hurts to swallow, but he will take frozen ice and sips of cold water or juice. On physical exam, he has moist mucous membranes and good skin turgor. He has swollen tonsils with exudate, and tender swollen anterior cervical nodes. A "Rapid Strep" test is done in the office and comes back positive. What is the next best step in management?
- A 10-day course of oral penicillin
- A 10-day course of erythromycin
- Throat cultures and confirmation of diagnosis before prescribing antibiotics
- A 5-day course of oral penicillin
- A single intramuscular injection of long acting penicillin followed by a 14 day course of oral antibiotics
Which of the following is NOT a goal of treatment for group A Streptococcal pharyngitis?
- Delaying the treatment for as long as possible.
- Decreasing risk of transmission of the disease
- Decreasing risk of suppurative complications such as peritonsillar abscess formation
- Decreasing risk of rheumatic heart disease
- Reducing time to resolution of symptoms
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Dozent des Vortrages Group A Streptococcus (GAS): Diagnosis
John Fisher, MD
Dr. John F. Fisher is a Professor of Medicine and Infectious Diseases at the Medical College of Georgia, Augusta University in the USA.
He obtained his medical degree from Virginia Commonwealth University School of Medicine in 1969. He is a Master of the American College of Physicians (MACP) and is certified by the American Board of Internal Medicine in Medicine and Infectious Diseases.
Due to his achievements, he has earned the Annual J. Willis Hurst Teaching Award, the Jane F. Deforges Excellence in Medical Education Award, and the Infectious Diseases Society of America's Clinical Teacher Award.
Within Lecturio, Dr. Fisher teaches courses on Infectious Diseases.
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very nice explanation and helpful information, thank you for the knowledge shared here
This guy is very straight forward and clear. Very Helpful.
