Impetigo

High Yield Notes

16 pages

Flashcards

Impetigo

of complete

Questions

USMLE® Step 1 style questions USMLE

of complete

A 17-year-old young man presents to his primary care physician for evaluation of lesions on the abdomen. The lesions were fluid-filled sacs that eventually burst, leaving behind yellow, crusted areas of inflammation. The patient is otherwise healthy and does not take any medications. Temperature is 37.7°C (99.9°F), blood pressure is 112/73 mmHg, and pulse is 68/min. Physical examination is notable for the following finding:



Image reproduced from Wikimedia Commons

Which of the following pathogenic factors is most likely responsible for this patient’s clinical presentation?  

External References

First Aid

2024

2023

2022

2021

Bullae p. 483

impetigo p. 487

Bullous impetigo p. 487

Crust (skin) p. 483

impetigo p. 487

Impetigo p. 483

crusts with p. 487

Streptococcus pyogenes p. , 134

sunburn and p. 492

Summary

Impetigo is a highly contagious skin infection that is most commonly caused by Group A streptococcus and Staphylococcus aureus bacteria. These bacteria often inhabit the skin and mucous membranes without causing any problems, but under certain conditions they can cause impetigo.

The hallmark sign of impetigo is the presence of honey-colored crusts on the skin. The lesions may be small or large, and may occur anywhere on the body. Impetigo may be accompanied by systemic symptoms such as fever, malaise, and swollen lymph nodes.

Elsevier

Copyright © 2024 Elsevier, its licensors, and contributors. All rights are reserved, including those for text and data mining, AI training, and similar technologies.

Cookies are used by this site.

USMLE® is a joint program of the Federation of State Medical Boards (FSMB) and the National Board of Medical Examiners (NBME). COMLEX-USA® is a registered trademark of The National Board of Osteopathic Medical Examiners, Inc. NCLEX-RN® is a registered trademark of the National Council of State Boards of Nursing, Inc. Test names and other trademarks are the property of the respective trademark holders. None of the trademark holders are endorsed by nor affiliated with Osmosis or this website.

RELX