PC707 Module 9 Exam Questions With Correct Answers

Staphylococcus aureus and streptococcus pyrogens (both gram +) - Answer What are common bacterial pathogens that cause skin infections? If it localized and mild use topical otherwise use systemic - Answer What factors play a role in choice of pharmacological management I&D, C&S, follow the CDC algorithm - Answer Treatment of MRSA? topical mupirocin (bacitracin or bactroban) if localized, otherwise, combined oral and topical if diffuse infection - Answer Treatment of Impetigo? can cause allergic reaction that looks like worsening infection Best to avoid. - Answer What special considerations are there with topical neomycin? for non-infectious inflammatory skin disorders. Must differentiate histaminic vs. bacterial, then determine severity. Includes irritant contact dermatitis. - Answer Uses of topical steroids? long term use or use on certain parts of the body can cause permanent skin changes. Striae telangiectasia ecchymosis acne hypertrichosis (increased hair growth) cataract formation (when used around the eyes) even with topical application can be absorbed systemically and cause HPA axis suppression, cushing's syndrome, hyperglycemia and glycsouria - Answer S/E of topical steroids? 2 weeks for adults 1 week for children - Answer How long should one use topical steroids? use lowest potency for permeable areas such as the face, groin or axilla - Answer Precuations with topical steroid use? fluorinated - Answer What is stronger, fluorinated or non-fluorinated? gels and aerosols - Answer What type of topical steroid is good for hairy areas? 1. ointment/emollient- anywhere hard to get to, plaques, elbows, soles palms 2. creams- less greasy, water based and more drying. 3. lotions- dilute creams. 4. Solutions- alcohol based, scalp, drying - Answer What are the 4 types of topical steroids and in what situation are they used? creams - Answer Which type of topical steroid is good for weeping lesion or interiginous areas? potency selection based on age, area to be covered and severity - Answer What information should you take into consideration when selecting the form of delivery of topical steroids? occlusive dressings including diapers - Answer What type of dressings will increase the absorption of topical steroids? the severity and it involves a step wise approach - Answer What does the choice of acne medication depend on? skin care (wash face 2-3x/day, avoid cosmetics, water based moisturizer, perfume free, use ear buds when on phone, change pillow case regularly) - Answer What is the 1st line non pharmacologic treatment of acne? topical, incudes comedolytic agent (Retinoic Acid), a comedolytic bactericidal agent (Benzoyl peroxide), or a topical antibiotic (Clindamycin 2% or Erythromycin 2-3%), keratolytic agents - Answer What is the 1st line pharmacologic treatment of acne? 4-6 weeks - Answer How long does it take to see improvement with 1st line medications to treat acne? oral abx ( tetracyclines, clindamycin, erythromycin). Use erythromycin if tetracycline failes or if patient may be pregnant Retin A OCPs - Answer What are the 2nd line medications to treat acne? Must be 15 yo 4-6 months - Answer How old must one be to use OCPs for acne treatment and how to see results? spironolcatone. 4-8 weeks for results - Answer What medication is used as off label treatment of acne? CBC CMP - Answer What labs do you want to draw when using spiro to treat acne? referral to derm to start accutane can only rx accutane if you've had the appropriate training - Answer What is the 3rd line treatment of acne? Accutane OCPs - Answer What medications to treat acne are contraindicated in pregnancy? Ortho tri-cyclen Estrostep Yaz - Answer What are the 3 OCPs that are approved for treatment of acne? Yes, all COCs will decrease both inflammatory and non-inflammatory acne - Answer Can you use other OCPs to help treat acne? the estrogen and progesterone in COCs diminish ovarian productions of testosterone and increase sex hormone binding globulin (SHBG) in the liver (which binds up testosterone). androgen--or testosterone --stimulates the production of sebum. Therefore, reduction of testosterone is directly correlated with a reduction in sebum and decrease in acne - Answer MOA of OCPs? causes peeling and erythema of skin-- use sparingly - Answer What specific patient education should you provide with Retinoic acid? Adapalene gel- less irritating - Answer What is an alternative to Retinoic acid? comedolytic bactericidal agent - Answer What is the action of benzoyl peroxide?