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Dermatology Questions and Answers Fully solved
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Exam of 20 pages for the course Sarah Michelle Crash Courses at Sarah Michelle Crash Courses (Dermatology)
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Dermatologyhow does aphthous stomatitis present? - answer painful shallow ulcers on soft tissue
inside the mouth.
Aphthous stomatitis is commonly known as _______ - answer Canker sores
Treatment for Aphthous Stomatitis - answer magic mouthwash- combination of liquid
diphenhydramine, lidocaine and glucocorticosteroid. Swish, hold and spit.
How does herpes simplex present? - answer prodromal itching, burning and tingling at site. Sudden onset of group of painful clustered vesicles on erythematous base.
What is the treatment for herpes simplex? Treat within _____ hours. - answer Acyclovir (CHEAPER) or Valacyclovir within 48-72hrs of sx onset.
Keratosis Pilaris is commonly referred to as _____ - answer "chicken skin"
Treatment for keratosis pilaris - answer emollient and moisturizer.
What anticipatory guidance will you provide to a parents whose child has the Keratosis pilaris? - answer Most children will outgrow this condition
How dose an Impetigo present? - answer honey colored crusted lesions.
What are the two bacterial causes of Impetigo? - answer Streptococcus pyogenes and Staphylococcus aureus
How does bullous impetigo present? And, how do you treat it? - answer large bullae or blister is present. Severe case: Keflex (Cephalosporin) or Dicloxacillin (Penicillin) Penicillin Allergy: Azithromycin (Macrolides), Clindamycin (Macrolides) and Doxycycline (Tetracycline)
What antibiotics do you use to treat Bullous Impetigo or severe case of impetigo IF pt has allergy to penicillin? - answer Macrolides- Clindamycin and Azithromycin
Tetracycline- Doxycycline How do you treat a non-bullous impetigo? - answer Topical mupirocin
What diagnostic test would you order for Impetigo? - answer culture and sensitivity of
the wound
How would a pt with Herpetic whitlow present? What causes it? - answer painful blistering on side of the finger or cuticles or terminal phalanx. Often d/t direct contact with cold sore or genital herpes. HSV1 or 2.
What education would you provide to pt with Herpetic Whitlow? - answer AVOID sharing personal items, gloves, towels. Cover skin lesion until healed.
What distinguishing marks occurs in a pt with Pityriasis Rosea? - answer starts with a "Herald Patch", usually located on the Trunk.
Then, erupts the oval lesions with fine scales that follow the skin lines (Cleavage Lines) of the Trunk in a "Christmas Tree" pattern.
What education do you provide to a pt with Pityriasis Rosea? How do you treat it? - answer This is self-limiting conditions. Will resolves on its own in 6-8wks. IF Itchy: antihistamine or topical steroids.
How do you differentiate Pityriasis Rosea from Syphilis? What diagnostic test would you
order to rule out Syphilis? - answer The lesion would be located on palms and soles. Order serologic testing - Rapid Plasma Reagent (RPR).
How do you differentiate HSV 1 vs HSV 2 infection? - answer HSV 1: typically is responsible for oral-labial (around mouth) skin lesions. HSV 2: typically causes genital lesions.
A patient presents with rough papules on skin and hard plugs. It appears like a "chicken skin". What does this patient have? - answer Keratosis Pilaris
How would a patient with Brown Recluse Spider Bite present? - answer hx of getting bit by something the night before. Bite may be pinprick or painless. Exam: swollen, red, and tender. Blisters within 24-48hrs. Necrotic (black purple eschar) centers on bite site, sloughs off and ulcers form.
How do you treat a patient with Brown Recluse Spider bite? - answer ice the site. And topical abx and analgesic if needed. If child is less than 7yrs old-> send pt to ER!
Just like Lyme disease, RMSF is precipitated by ______ - answer tick bite How would a patient with Rocky Mountain Spotted Fever present? - answer Hx of recent travel or hiking- NC/OK/AK/TN/MO
Sudden onset of: fever, chills, n&v, photophobia and myalgia. 2-5days after the sx, petechiae rash erupts on limbs- wrists, forearm, palms, and soles. Then these rash move centrally toward the trunk and become generalized.
What organism causes Rocky Mountain Spotted Fever? What diagnostic tests would you order? - answer Rickettsia rickettsii
Dx: Antibody Titers to Rickettsii and Punch Biopsy
How would you treat a pt with Rocky Mountain Spotted Fever? How would you treat a Pregnant Women or Children? - answer Doxycycline- to ALL AGE GROUPS!
What states have high incidence of RMSF? - answer NC/OK/AK/TN/MO
Erythema migrans is commonly known as - answer Lymes disease
How would a pt with Erythema Migrans present? - answer red rash with central clearing with appearance of "Bulls eye" or "Target" store. The rash is hot to touch and rough in texture. Pt has flu-like sx
The rash appears 7-14d after the tick bite.
Where is the bulls eye-like rash typically located on pt with Lyme disease? - answer Belt line, axilla, behind the knee and groin area.
What diagnostic test would you order for pt with Erythema migrans? How do you confirm a lyme disease? - answer 1st step- Enzyme immunoassay: If positive, move to step 2. If negative, no further tests required. 2nd step- Western Blot or Indirect Immunoflourescense assay: If positive, confirms Lyme disease
What is the 1st line treatment for Erythema migrans? Who is this medication contraindicated in? - answer Doxycycline <8yrs old, pregnant and nursing mother
What antibiotics would you prescribe either a child <8yrs old, pregnant and nursing mom with Erythema migrans? - answer Amoxicillin or Cerfuroxime
How would you treat a pt with Erythema migrans with neurological complications such as Lyme meningitis, Bells Palsy and/or cardiovascular complications such as AV block -
answer IV Ceftriaxone
RubeoLa is commonly referred to as - answer MeasLes
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