Microbiology

Question 1

What is the viral cause of oral ulceration?

Answer 1

• HSV type 1

Question 2

Potential treatment for HSV oral ulceration if failing to resolve?

Answer 2

• aciclovir

Question 3

HSV 2 is associated with ulcers where?

Answer 3

• genital mucosa

Question 4

What causes cold sores to reactivate?

Answer 4

• reactivation from nerves causes active infection

Question 5

What is a severe complication of HSV?

Answer 5

• HSV encephalitis

Question 6

How do you diagnose HSV?

Answer 6

• Swab of lesion in virus transport

Question 7

What is herpangina?

Answer 7

• vesicles or ulcers on soft palate

Question 8

Common causative organism of herpangina?

Answer 8

• coxsackie virus

Question 9

What is the commonest causative organism of hand, foot and mouth?

Answer 9

• coxsackie

Question 10

Primary syphilis may present as what?

Answer 10

• painless indurated ulcer at site of entry

- genital, oral and pharyngeal lesion

Question 11

Apthous ulcer presentation?

Answer 11

• painful

- recurrent since childhood

Question 12

Behcet’s disease signs?

Answer 12

• recurrent oral or genital ulcers

- uveitis

Question 13

Common causative agent of acute pharyngitis?

Answer 13

• viral

- group a strep (s.pyrogens)

Question 14

Mononucleosis is also called?

Answer 14

• glandular fever

Question 15

What organism causes mononucleosis?

Answer 15

• Epstein Barr Virus

Question 16

Severe complication of pharyngitis/tonsilitis?

Answer 16

• quinsy

Question 17

Describe the microbiology of s.pyogenes?

Answer 17

• gram positive
• cocci chains
• beta haemolytic

Question 18

Glomerulonephritis may present as a complication of s.pyogenes infection ____ weeks post infection

Answer 18

• 1-3 weeks

Question 19

Rheumatic fever may present as a complication of s.pyrogens infection ___ weeks post infection?

Answer 19

• 3 weeks

Question 20

Name 2 scoring systems that can be used to decide if antibiotics should be given in group A, beta haemolytic strep?

Answer 20

• CENTOR

- FEVERPAIN

Question 21

DMARDs have a risk of what?

Answer 21

• neutropenia

Question 22

Diptheria presentation?

Answer 22

• pseudomembrane in the posterior pharynx

Question 23

Treatment of diphtheria?

Answer 23

• antitoxin

- penicillin

Question 24

Symptoms of infectious mononucleosis

Answer 24

• fever
• enlarged lymph nodes
• malaise
• jaundice

Question 25

Diagnosis of infectious mononucleosis?

Answer 25

• serology

- IgM epstein-barr virus

Question 26

Treatment of infectious mononucleosis?

Answer 26

• bed rest

- paracetamol

Question 27

Candida presents as?

Answer 27

• white patches on red, raw mucosa

Question 28

Treatment of candida?

Answer 28

• nystatin

- fluconazole

Question 29

How might you diagnosis otitis media?

Answer 29

• swab pus if eardrum perforates

Question 30

Symptoms of otitis externa?

Answer 30

• redness and swelling
• itchy
• discharge

Question 31

Describe malignant otitis?

Answer 31

• extension of otitis externa into the surrounding bone
• may be fatal
• risk of osteomyelitis

Question 32

Symptoms of malignant otitis?

Answer 32

• pain and headache
• granulation tissue at bone
• exposed bone in ear canal
• facial nerve palsy

Question 33

Treatment of sinusitis?

Answer 33

• self-limitng
• phenoxymethylpenicilin
• doxycycline