INSTRUCTIONS Uncovering common bacterial skin infections
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Uncovering common bacterial skin infections
General Purpose: To provide information on the evaluation of common bacterial skin infections. Learning Objectives: After reading the article and taking this test, the NP should be able to: 1. Discuss the etiology, diagnosis, and prevention of four common bacterial skin infections. 2. Identify the clinical presentation and treatment of impetigo, erysipelas, cellulitis, and folliculitis.
- Which statement is true regarding bacterial skin infections?
- One of the most common causative organisms is Klebsiella.
- Signs and symptoms of gout can mimic those of a skin infection.
- Patients with diabetes are more prone to infections by gram-positive organisms.
- From 2000 to 2004, the rate of hospitalizations for skin infections increased 43%.
- Which organism commonly found in the gastrointestinal system causes impetigo?
- Streptococcus pyogenes
- Staphylococcus aureus
- Enterobacter aerogenes
- Klebsiella pneumoniae
- People particularly susceptible to impetigo include those who
- are over 40 years old.
- live in a cold, dry climate.
- live in overcrowded conditions.
- have had surgery that disrupts lymphatic drainage.
- Which statement is true regarding impetigo?
- Bullous impetigo causes significant mortality in infants.
- Nonbullous impetigo is less common than bullous impetigo.
- Bullous impetigo presents as small vesicles with honey-colored crust.
- Nonbullous impetigo presents with blisters containing serous fluid.
- A common site for impetigo is
- the scalp.
- under the nose.
- the back of the neck.
- the trunk.
- Which treatment for impetigo can help prevent the development of MRSA?
- Erysipelas affects the
- epidermis only.
- superficial lymphatics.
- pilosebaceous follicles.
- subcutaneous fat.
- Skin findings in erysipelas include
- pustules and papules.
- peau d'orange appearance.
- partially denuded areas.
- Erysipelas is differentiated from cellulitis by its
- less-defined margins.
- fluid-filled bullae.
- tissue necrosis.
- raised border.
- Risk factors for erysipelas include all of the following except
- leg ulcers.
- prior leg surgery.
- Prevention of erysipelas includes
- not sharing toiletry items.
- scrubbing the skin with abrasives.
- cleansing all injuries with vinegar in warm water.
- avoiding tight-fitting clothing.
- The author recommends treating severe MRSA-positive erysipelas infections with
- Outpatient treatment of cellulitis should include antibiotic coverage for which organism?
- Proteus vulgaris
- Diagnosis of early cellulitis is based on
- blood cultures.
- a punch biopsy.
- a wound culture.
- a history and physical assessment.
- Which statement is true regarding the treatment of cellulitis?
- Nonsteroidal anti-inflammatory drugs should be avoided.
- Orbital cellulitis is treated with the application of cool packs.
- Patients with diabetes may need systemic corticosteroids.
- Fluoroquinolones are safe to use in pregnancy for early cellulitis.
- Folliculitis resulting from poorly chlorinated hot tubs is commonly caused by
- Signs and symptoms of folliculitis include
- nonblanchable skin.
- pustules on the palms and soles.
- areas of honey-colored crusts.
- intense itching.
- Prevention of folliculitis includes
- wearing long-sleeved shirts in sports practice.
- wearing tight-fitting clothing.
- shaving in the direction opposite to hair growth.
- cleaning clothing every other day.