Which of the following is the likely organism causing ophthalmia neonatorum on the 3rd day of bih?
Correct Answer: N gonorrhoeae
Description: The common causative organisms of ophthalmia neonatorum include Chlamydia trachomatis (most common), Neisseria gonorrhoeae (most threatening), Haemophilus species, Streptococcus species, Staphylococcus aureus, and viruses such as Herpes simplex (HSV). The "rule of fives" is a mnemonic for predicting the most likely bacterial etiology of the condition. However, there is considerable overlap in times to onset. 0 to 5 days: N gonorrhoeae 5 days to 5 weeks: Chlamydia 5 weeks to 5 years: Streptococcus or Haemophilus influenzae Ref: Levsky M.E., DeFlorio P. (2010). Chapter 2. Ophthalmologic Conditions. In K.J. Knoop, L.B. Stack, A.B. Storrow, R.J. Thurman (Eds), The Atlas of Emergency Medicine, 3e.
Category:
Ophthalmology
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now