Microbiology Flashcards
What is the viral cause of oral ulceration?
- HSV type 1
Potential treatment for HSV oral ulceration if failing to resolve?
- aciclovir
HSV 2 is associated with ulcers where?
- genital mucosa
What causes cold sores to reactivate?
- reactivation from nerves causes active infection
What is a severe complication of HSV?
- HSV encephalitis
How do you diagnose HSV?
- Swab of lesion in virus transport
What is herpangina?
- vesicles or ulcers on soft palate
Common causative organism of herpangina?
- coxsackie virus
What is the commonest causative organism of hand, foot and mouth?
- coxsackie
Primary syphilis may present as what?
- painless indurated ulcer at site of entry
- genital, oral and pharyngeal lesion
Apthous ulcer presentation?
- painful
- recurrent since childhood
Behcet’s disease signs?
- recurrent oral or genital ulcers
- uveitis
Common causative agent of acute pharyngitis?
- viral
- group a strep (s.pyrogens)
Mononucleosis is also called?
- glandular fever
What organism causes mononucleosis?
- Epstein Barr Virus
Severe complication of pharyngitis/tonsilitis?
- quinsy
Describe the microbiology of s.pyogenes?
- gram positive
- cocci chains
- beta haemolytic
Glomerulonephritis may present as a complication of s.pyogenes infection ____ weeks post infection
- 1-3 weeks
Rheumatic fever may present as a complication of s.pyrogens infection ___ weeks post infection?
- 3 weeks
Name 2 scoring systems that can be used to decide if antibiotics should be given in group A, beta haemolytic strep?
- CENTOR
- FEVERPAIN
DMARDs have a risk of what?
- neutropenia
Diptheria presentation?
- pseudomembrane in the posterior pharynx
Treatment of diphtheria?
- antitoxin
- penicillin
Symptoms of infectious mononucleosis
- fever
- enlarged lymph nodes
- malaise
- jaundice
