Which of the following organisms are the ones that almost always ...

[CBme]

Which of the following organisms are the ones that almost always cause bullous impetigo?
 
  a. Staphylococcus aureus c. streptococcus
  b. Escherichia coli d. pneumococcus

Question 2

What is the classic sign of impetigo, which is typically used to diagnose this condition?
 
  a. red rash on the trunk c. tracks under the skin
  b. honey-colored crusts on the skin d. scratch marks near insect bites

[lou]

Answer to Question 1

A

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A Correct. The cause of bullous impetigo is almost always Staphylococcus aureus.
B Incorrect. Bullous impetigo is not caused by Escherichia coli.
C Incorrect. Bullous impetigo is not caused by streptococcus.
D Incorrect. Bullous impetigo is not caused by pneumococcus.

Answer to Question 2

B

Feedback
A Incorrect. Impetigo does not typically present as a red rash on the trunk.
B Correct. The diagnosis of impetigo is based upon the clinical presentation, which typically includes the honey-colored crusts on the skin. These crusts are considered the hallmark characteristic of impetigo.
C Incorrect. Impetigo does not typically present as tracks under the skin.
D Incorrect. While scratch marks and insect bites may allow the bacteria for impetigo to enter the skin, the presence of these findings does not suggest impetigo infection.