The patient has vesicles and scabs over her forehead. Microscopic examination of skin scrapings shows gram- positive cocci in clusters. The etiology is

Question

Quizplus · Accepted Answer

The presence of gram-positive cocci in clusters in skin scrapings is indicative of Staphylococcus aureus, which can cause skin infections characterized by vesicles and scabs. Pseudomonas aeruginosa is a gram-negative bacterium that can cause various infections, but it is not typically associated with skin infections characterized by vesicles and scabs. Sarcoptes is a mite that causes scabies, which can lead to skin lesions, but the microscopic appearance of the pathogen differs from that of gram-positive cocci in clusters. Microsporum is a type of fungi that can cause ringworm, but it typically does not present with vesicles and scabs. Candida is a yeast that can cause various infections, including skin infections, but it is typically associated with moist areas of the body, such as the mouth and genital area, rather than the forehead.

The Patient Has Vesicles and Scabs Over Her Forehead