Fungal Skin Infections Flashcards
Tinea pedis Tinea unguium Tinea corporis Tinea cruris Tinea capitis
Which is athletes foot?
Tinea pedis
Tinea pedis Tinea unguium Tinea corporis Tinea cruris Tinea capitis
Which is jock itch?
Tinea cruris
Tinea pedis Tinea unguium Tinea corporis Tinea cruris Tinea capitis
Which one affects nails?
Tinea unguium
Tinea pedis Tinea unguium Tinea corporis Tinea cruris Tinea capitis
Which one affects the body?
Tinea corporis
Tinea pedis Tinea unguium Tinea corporis Tinea cruris Tinea capitis
Which one affects the scalp?
Tinea capitis
Tinea pedis Tinea unguium Tinea corporis Tinea cruris Tinea capitis
Which one can not be treated via self-care?
Tinea unguium + Tinea capitis
Tinea pedis Tinea unguium Tinea corporis Tinea cruris Tinea capitis
Which is the most prevalent?
Tinea pedis
How is tinea unguium treated?
Terbinafine, itraconazole, or surgery
Tinea cruris is more common in the (warmer/colder) weather
Warmer
What are the general fungi species?
- Trichophyton
- Microsporum
- Epidermophyton
Trichophyton
Microsporum
Epidermophyton
Which does not affect the scalp?
Epidermophyton
Trichophyton
Microsporum
Epidermophyton
Which one does affect the scalp?
Trichophyton + Microsporum
Trichophyton
Microsporum
Epidermophyton
Which one primarily affects body?
Microsprum
Trichophyton
Microsporum
Epidermophyton
Which one affect the nail, feet, groin, and sometimes body?
Trichophyton
What is the most common complaint of these fungal infections?
Itching
What are the two factors of dermatophyte exposure and ioculation?
Size + lesion duration
Which tinea does NOT have FDA approved OTC products for self-treatment?
A. Pedis
B. Cruris
C. Capitis
D. Corporis
C. Capitis
Tinea pedis Tinea unguium Tinea corporis Tinea cruris Tinea capitis
Which one has 4 variants?
Tinea Pedis
In the first variant of tinea pedis, what kind of bacteria might make it worse?
Gram negative
How should you treat tinea unguium?
Nail revitalizer (not anti-fungal) apply over entire nail, scrub for 1 min, dry it repeat daily for 3 weeks
An exclusion would be treatment for ___ weeks with not improvement of ___ weeks with tolnaftate
> 4 + 6
When should you use aluminum acetate?
To soak or compress; to dry vesicles and weeping; use TID for 1 wk before starting anti-fungal
When should you stop using antifungals?
Entire 4 weeks, not when it looks better
FDA approval of antifungals require what to demonstrate effectiveness
1 well designed clinical trial
Clotrimazole and Micronazole are (fungistatic/fungicidal)
Both
Terbinafine is (fungistatic/fungcidal)
Fungicidal
How often should you apply clotrimazole / miconazole?
BID for 4 wks; jock itch = 2 wks
What drug interaction does clotrimazole / miconazole has?
Warfarin
How often should you apply Terbinafine?
- BID for 4 wks;
- Between toes = 1 wk,
- Soles of feet = 2 wks,
- Jock itch, or body = QD for 1 wk
Butenafine is (fugistatic/fungicidal)
Fungicidal
How often should you apply Butenafine?
- Athletes foot: BID for 1 wk, then QD for 4 wks
2. Jock itch + body ringworms: QD for 2 wks
What is the only FDA approved RX for preventing and treating tinea infections?
Tolnaftate
Tolnaftate (solution/cream) is better in the cold because it solidifies and liquefies when warm
solution (1%)
How should you use Aluminum Salts (Domeboro packets)?
Soak foot for 20 min TID; dont use for too long as it can cause tissue necrosis
What is a keratolytic agent that you could recommend?
Whitfield’s Ointment; enhances skin penetration of anti-fungal. Should be used on thicker skin
