Module 5 Dermatology Flashcards
Patho of Acne Rosacea
- Cause is unknown
* Possibly linked to immune-mediated Inflammation
Complications of Acne Rosacea
•Ocular Rosacea
Risk factors for Acne Rosacea
- Age
- Fair skinned
- Female
Subjective data for Acne Rosacea
- Facial flushing
- “I always look red”
- “I have bumps and fluid filled bumps on my face”
Objective Data for Acne Rosacea
- Facial erythema
- inflammatory papules and pustules
- watery and irritated eyes
- No Comedones noted
Differentials for Acne Rosacea
- Adult acne vulgaris
- Photodermatitis
- Seborrheic dermatitis
- Contact dermatitis
Testing for Acne Rosacea
None
Management of Acne Rosacea
•Topical or oral antibiotics –Metronidazole 1% or 0.75% gel or lotion BID for 3-4 months –Azelaic acid 15% gel or cream BID fo2 months –Plexion Cleanser –Tetracycline 250-500mg BID –Doxycycline 100-200mg/day –Minocycline 50-100mg/day •Nonpharmacologic –Skin care
Patient education for Acne Rosacea
- Long-haul
- Patience and understanding of the treatment
- Routine follow up necessary
Referral for Acne Rosacea
Dermatologist. Ophthalmologist, Mental Health Provider
What is Acne Vulgaris
a condition of the pilosebaceous follicles
Complications of acne vulgaris
•Keloids •Medication adverse effects –Renal impairment –DVTs –Hyperkalemia
Risk factors for Acne Vulgaris
- Family history of acne
- Allergies
- Certain medications can cause acne
- Hormonal factors
- Seasonal factors like less sunlight
- Facial products
Subjective/Objective data for Acne Vulgaris
- Variety of lesions including comedones, papules, pustules, and nodules on the face, chest, back, and shoulders
- “Pimples”
- Red bumps
- Black bumps
- White bumps
- Pain
- Scarring
Differential Diagnoses for Acne Vulgaris
- Closed comedones acne, milia and suspicious hyperplasia
- Open, comedonal acne, dilated pore of Weiner, and Favre-Racouchot syndrome
- Inflammatory acne, rosacea, and perioral dermatitis
- Fungal, flat warts, molluscum contagiosum, folliculitis
- Tuberous sclerosis
- Facial angiofibroma
- Adnexal tumors
Testing for Acne Vulgris
May be done to find cause
- Total testosterone
- DHEAS
- Androstenedione
- Luteinizing hormones
- Follicle stimulating hormone
- Lipid profile
- Glucose tolerance testing
Management of Acne Vulgaris
1st:cleansers->topicals->t.antib->po antib
•Nonpharmacologic
–Mild cleansers
•Pharmacologic
1st–Retin-A, Differin, Tazorac, azelaic acid, benzoyl peroxide, salicylic acid
–Topical antibiotics (not recommended in mono-therapy)
–Oral antibiotics
–Hormone therapy: combined OC-prog only makes it worse
–Retinoid therapy
Patient education for Acne Vulgaris
- Adherence is key
- Treatment is a longhaul
- Follow-up visits are necessary
Referral for Acne Vulgaris
Dermatologist, Mental Health Professional
What is Cellulitis?
Bacterial infection most often caused by
Streptococcus or Group A B-hemolytic streptococci
Complications of Cellulitis
- Severe systemic infection
- Osteomyelitis
- Periorbital cellulitis
- Death
Risk factors for Cellulitis
- Immunocompromised at greater risk
* Obesity
Subjective data for Cellulitis
- Redness
- Pain
- Drainage
- Swelling
- Feverish
- Warmth at the site
- Chills
- Malaise
Objective data of Cellulitis
• Unilateral (most often a limb) • Inflamed • Red • Hot • Swollen • May or may not have open sore visible • Fever • Tender to touch
Differential diagnosis of Cellulitis
- Deep vein thrombosis
- Osteomyelitis
- Thrombophlebitis
- Neoplastic disease
Testing for Cellulitis
- CBC with differential
- Creatinine
- Bicarbonate
- Creatinine phosphokinase
- Purulent focus culture
- Gram stain
- Radiographs or ultrasound
Management of Cellulitis
- Systemic antibiotics (PCN, Amox. Augmentin preferred x 5d unless allergic)
- Rest, elevate, compression, educate
- Refer if I&D needed or other (p.278)
Patient education for Cellulitis
- Complete entire course of antibiotics
- Notify the office if symptoms are worsening
- Keep area dry clean and elevated
- Educate on the prevention of skin infections
Referral for Cellulitis
• Immediate referral for severe complications
What is Eczematous Dermatitis
pruritic inflammatory skin disorder which has exacerbations and remissions
Subjective data with Eczema
- Dry patches on skin
- Crusting and oozing from skin sites
- Severe itching
- “An itch that rashes”
- Thickened area on skins
- Symptoms on upper extremities
Objective data of Eczema
- Pattern of rash / itch of inner folds
- Linear excoriations
- Boarders are undefined
- Rash in folds, wrists, dorsa of feet, face, and neck
- Fissures on palms of hands
- Well-demarcated area of erythema, scaling, or crusting at the site of exposure
Differentials for Dermatitis
- Mycosis fungoides
- Immunodeficiency (especially with severe itching and with recurrent infection)
- Scabies
Dermatitis Testing
- Primarily none
* Could do KOH, skin biopsy, skin patch testing (contact dermatitis)
Management of Eczema
Management: •Nonpharmacologic –Elimination diet –Phototherapy –Avoid: rubbing alcohol , Scratching, Goal is management of pruritis, Triggers
•Pharmacologic
–Antihistamines
–Emollient
–Topical corticosteroids
• Hydrocortisone 1% apply to affected area twice daily x2 weeks
•Triamcinolone for acute persistent flare ups
Treatment of Allergic Dermatitis
Steroids for allergy & education to avoid allergen (ex. poison ivy)
Treatment of Irritant Dermatitis
Avoid the irritant, protect the skin with gloves, petroleum or other hypoallergenic barrier, avoid detergents and use alcohol- based cleansers that do not remove natural barriers and preserve skin integrity
Complications of Oral Herpes
- Complications are rare but can occur in those who are already immunocompromised
- Possible complications include aseptic meningitis, urinary retention, cutaneous dissemination, bacterial superinfection, arrhythmia multiform, and spontaneous abortion
Risk for Oral Herpes
Female
Black
- Contact with a person who has an active lesions or sections
- Contact with a person how has the know virus
- Open cuts and sores
- Immunocompromised
Subjective data of Oral Herpes
• Primary, latent and recurrent – Prodrome of burning – Blister on the mouth – pain at site
Objective data of Oral Herpes
• Primary, Latent, Recurrent
– Single or multiple vesicles
– Tender to touch
Differentials of Oral Herpes
- Erythema multiforme
- Impetigo
- Varicella
- Herpes Zoster
Diagnostics of Oral Herpes
• Thorough history and physical • Lab conformation for new cases – Cutaneous herpes simplex viral culture • Serologic testing – Does not differentiate between type one and type two so used with caution
Treatment of Oral Herpes
• Initial episode – Acyclovir 400mg PO 3 times daily for 7-10 days – Valacyclovir 1gm PO daily for 7-10 days – Famciclovir • Recurrent episode – Acyclovir 400mg PO BID x5 days – Valacyclovir 500 PO BID for 3 days – Famciclovir • Suppression – Acyclovir 400mg PO BID – Valacyclovir 500mg or 1gm PO daily – Famciclovir
Patient education for Oral Herpes
- Start treatment at onset of prodromes for recurrent
- Avoid contact when you have an active lesion
- Understand that you can transmit even if you have no lesion or when using suppressive therapy
- Explain the risks of neonatal transmission during pregnancy to both female and male
- Lip balm with sunscreen when exposed to UV light to avoid
Referral for Oral Herpes
• Obstitrican/MFM if patient is pregnant
Patho of Herpes Zoster
- Virus that lies dormant after initial infection
- Virus replicates
- Penetrates the epidermis
- Replication is multifactorial
- Can spread by contact and air and live for hours to two days
Complications of Herpes Zoster
- Blindness
- Motor paralysis
- Facial palsy
- Pneumonia
- Hepatitis
Risk factors for Herpes Zoster
- Age
- Immunosuppressed
- Previous Varicella infection
- Pregnancy
- Very young
- Unvaccinated
Subjective data of Herpes Zoster
- Painful itching, then eruption of blisters
- Burning, stabbing, aching sensation
- Feverish
- One-sided rash on the trunk of body
Objective data of Herpes Zoster
- Unilateral rash
- Low-grade fever
- Erythematous and maculopapular clusters of clear vesicles
- Tender to touch
Differentials for Herpes Zoster
- Allergic dermatitis
- Dermatitis herpetiformis
- Contact Dermatitis
- Coxsackievirus
Testing for Herpes Zoster
- PCR analysis
- Tzanck preparation
- DFA test
- Viral culture
- Alkaline phosphatase, bilirubin, C-reactive protein
- WBC
Treatment of Herpes Zoster
• Antiviral within 72 hours of onset
– Valcyclovir 1,000 mg orally three times daily for seven days
– Famciclovir 500 mg orally three times daily for seven days
– Acyclovir 800 mg orally five times daily for 7 to 10 days
• Pain management
– NSAIDS
– Gabapentin
– Pregabalin
– Amitriptyline
– Acetaminophen
Patient education for Herpes Zoster
- Notify early of symptoms
- Use moist dressings, pain management, and bedrest to relieve discomfort
- Susceptible individuals while you are infectious
Referral for Herpes Zoster
If on face
What is Intertrigo
Bacterial or fungal disorder that occure in persistent skin to skin contact, friction, moisture, warmth and inadequate ventilaition
Complications of Intertrigo
- Unusual to have complications with topicals
- With systemic antifungal’s complications would be hepatotoxicity
- Note that oral ketoconazole is no longer approved as a treatment due to this reason