Week 2 - J - Microbiology Tutorial Cases

Question 1

The plate shows alpha haemolytic strep

Answer 1

Organism - Organism is likely to be strep pneumoniae Condition - Patient is suffering from acute otitis media Treatment - Use oral amoxicillin Why amoxicillin over penicillin - covers other organism eg H.influenza and has better oral absorption

Question 2

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Answer 2

Diagnosis - Infectious mononucleosis (Glandular fever) Virus - Epstein bar virus Test to diagnose - Monospot test (can use EBV IgM) What happens if given amoxicillin - widespread rash

Question 3

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Answer 3

Patient has - otitis externa How has he acquired - due to being a swimmer his ear was constantly wet giving the bacteria in the surrounding environment opportunity to infect Treatment - aural toilet to clean ear followed by clotrimazole ear drops Does the fungus become invasive - NO Two othe rorgansims - pseudomonas aerguinosa, staph aureus (can be candidia)

Question 4

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Answer 4

Patient has - Streptococcal sore throaat What antibiotics - penicillin Two possible serious complications - rheumatic fever and glomerulonephritis (can get strep toxic shoch syndrome)

Question 5

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Answer 5

Most likely - hand foot and mouth disease Group of viruses - coxsackie virus (a group of the enteroviruses) Advice for mother - good hand hygiene has HFMD is spread via faecal oral route