Final Exam NR 511 Questions and Answers 100% pass

Final Exam NR 511 Questions and Answers 100% pass Impetigo caused by - Answer- Staph aureus Group Streptococcus (GAS) Occasional MRSA Most commonly seen in 2-5 years of age population. Easily spread in close environments. Risk Factors: Poverty, crowding, poor hygiene, and underlying scabies Nonbullous impetigo - Answer- papulues that progress to vesicles and pustules rupture and become encrusted sores. Golden honey appearance. Involving face and extremities Bullous impetigo - Answer- Vesicles enlarge to form a faccid bullae with clear yellow fluid, leaving a thin brown crust. Trunk is more frequently affected. If an adult w/ appropriate demographic risk factors should prompt an HIV investigation. Ecthyma - Answer- Group A beta-hemolytic streptococci- GAS ulcerative form in which the lesions extend through the epidermis and deep into the dermis. "punched out" ulcers, with yellow crust. Poststreptococcal glomerulonephritis (PSGN) - Answer- Nephritic syndrome that arises after group A beta-hemolytic streptococcal infection of the skin (impetigo) or pharynx. Edema, HTN, Fever, and Hematuria Must treat with oral antibiotic Treatment for Impetigo - Answer- Limited skin involvement Mupirocin (Bactroban) TID Retapamulin BID Patient's with numerous affected areas (Tx: S.Aureus and GAS) Dicloxacillin seven days Cephalexin seven days if is only only GAS then Penicillin is preferred MRSA impetigo tx - Answer- mupirocin - inhibits bacterial protein synthesis Doxycycline, clindamycin, or tiimethoprim-sulfamethoxazole (Bactrim) Staphylococcal Scalded Skin Syndrome (SSSS) - Answer- Staphylococcus aureus, epidermal necrosis caused by bacterial exotoxins. Epithelial layer peeling off in large sheetlike pieces. Mimics scalded-skin thermal burn. More common in children. Found in places where skin rubs together. Cellulitis - Answer- an acute, diffuse inflammation of the skin and subcutaneous tissue characterized by local heat, redness, pain, and swelling. Typically unilateral common site is lower extremities Middle aged and older adults Erythema, edema, warmth, and pain. "peau d'orange" Cellulitis caused by - Answer- The most common are beta-hemolytic streptococci (A,B,C,G, and F) S. Aureus (gram +) Predisposing factor to cellulitis - Answer- Tina pedis, lymphedema, and chronic venous insufficiency. Cellulitis treatment - Answer- Beta-hemolytic streptococci and methicillin-susceptible staphylococcus areus (MSSA): tx: Cephalexin 500mg QID (alternative for mild PCN allergy) Clindamycin 300mg QID (severe PCN allergy) Not associated with Human or animal bites uncomplicated (Dicloxacillin or cephalexin 10-14 days. PCN allergy=Erythromycin If caused by human or animal bite