Cellulitis and other Skin Infections

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Question 1 of 10

1. Question
Which of the following signs are useful in differentiating cellulitis from alternative diagnoses?

Select one or more options.
- Skin tenderness
- Systemic upset
- Erythema
- Lymphangitis
- Unilateral swelling
Question 2 of 10

2. Question
Which of the following organisms most commonly causes cellulitis?
- Streptococcus milleri
- Group A beta-haemolytic streptococci
- Both Staphylococcus aureus and Group A beta-haemolytic streptococci
- Clostridium perfringens
- MRSA
Question 3 of 10

3. Question
Which of the following patients with cellulitis would be suitable for outpatient management with oral antibiotics?
- An elderly lady with leg cellulitis who is unable to mobilise or self-care
- A 32-year-old diabetic with facial cellulitis
- A confused patient with learning difficulties and spreading erythema of the groin
- A 70-year-old with leg cellulitis who is apyrexial and pain-free but tachycardic and feeling unwell
- A 40-year-old with cellulitis secondary to an insect bite. She is systemically well and her vital signs are normal
Question 4 of 10

4. Question
Blood cultures are positive in what percentage of patients with uncomplicated (Class I and II) cellulitis?
- Less than 5%
- 20%
- 40%
- 60%
- 80%
Question 5 of 10

5. Question
The most effective treatment for impetigo would be?
- Fucidin® H
- Mupirocin 2%
- Chloramphenicol eye ointment 1%
- Amoxicillin 125 mg orally three times a day
- Aqueous cream
Question 6 of 10

6. Question
Which of the following statements about impetigo are correct?

Select one or more options.
- Several different clinical forms exist
- Most causal organisms are resistant to mupirocin
- Staphylococcus aureus is the commonest causal organism
- Nasal carriage of causal organisms can result in recurrent impetigo
- MRSA is seen as a cause of community acquired impetigo
Question 7 of 10

7. Question
Which of the following statements regarding recurrent cellulitis are correct?

Select one or more options.
- Foot dermatophytes can provide entry ports for infection
- There is no association between lymphoedema and recurrent cellulitis
- Prophylactic antibiotic therapy has not been shown to reduce the frequency of episodes of cellulitis
- Diabetes mellitus is not a risk factor
- 5% of patients who have a first episode of lower limb cellulitis will experience a recurrence
Question 8 of 10

8. Question
Which of the following is beneficial in the management of cellulitis?

Select one or more options.
- Elevation of the affected limb
- Maintaining good hydration
- Appropriate antibiotic therapy
- Examination for predisposing factors (such as diabetes mellitus, venous and arterial insufficiency, eczema)
- Effective analgesia
Question 9 of 10

9. Question
Which of the following would suggest a diagnosis of necrotising fasciitis rather than uncomplicated cellulitis?
- Erythema and oedema
- Blistering
- Lymphadenopathy
- Skin tenderness
- Severe pain despite mild skin changes
Question 10 of 10

10. Question
In necrotising fasciitis, the most important step in diagnosis and management is:
- Bacterial swab
- Surgical exploration and debridement in theatre
- MRI scan to identify gas tracking through tissue planes
- Blood cultures
- X-ray for free gas in the tissues

2 Comments

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Dr Syed Shahbaz Ahmer December 17, 2023 at 2:06 pm

Excellent Review

Dr Hanan Alsuhail (Group Leader) February 13, 2026 at 2:21 pm

so helpful module! learnt a lot. also the clinical case of the 81 yo lady with dvt history is very very similar to what i see day to day

Cellulitis and other Skin Infections – Post Test

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