WGU D116 UNIT 8 PRACTICE GUIDE 2026
IMMUNOLOGY AND HOST DEFENSE
SYSTEM FUNCTIONS
◉ Rosacea S/Sx
Answer: Central facial flushing, persistent erythema, telangiectasis
(small blood vessels visible), papule, pustule without comedones
◉ Rosacea Tx
Answer: Trigger avoidance, Sunscreen, Topical metronidazole,
azelaic acid, ivermectin, Oral Doxy for moderate disease
◉ Perioral Dermatitis S/Sx
Answer: Small pustules and papule around mouth, Sometimes
around nose/eyes, Worse with topical steroids
◉ Perioral Dermatitis Tx
Answer: Stop steroid trigger, Topical metronidazole, Oral
tetracycline therapy if persistent
◉ Foliculitis S/Sx
Answer: Folicular pustules/papules, Often itchy, tender
, ◉ Foliculitis Tx
Answer: Hygiene, Topical abx, Antiseptic washes, Oral abx if
extensive
◉ Hyperhydrosis S/Sx
Answer: Excessive sweating
◉ Hyperhydrosis Tx
Answer: Topical aluminum chloride first line, Iotophoresis, Botox,
oral anticholinergics
◉ Hidradentitis Suppurativa S/Sx
Answer: Painful, recurrent nodules, abscesses, Draining sinus tracts,
Scaring in the axillae, groin, imflammatory folds
◉ Hidradentitis Suppurativa Tx
Answer: Weightloss, smoking cessation, Topical clindamycin (Mild),
Oral abx for flares, Biologic therapy for mod/sever, Surgery for
advanced disease
◉ Minor Burns S/Sx
IMMUNOLOGY AND HOST DEFENSE
SYSTEM FUNCTIONS
◉ Rosacea S/Sx
Answer: Central facial flushing, persistent erythema, telangiectasis
(small blood vessels visible), papule, pustule without comedones
◉ Rosacea Tx
Answer: Trigger avoidance, Sunscreen, Topical metronidazole,
azelaic acid, ivermectin, Oral Doxy for moderate disease
◉ Perioral Dermatitis S/Sx
Answer: Small pustules and papule around mouth, Sometimes
around nose/eyes, Worse with topical steroids
◉ Perioral Dermatitis Tx
Answer: Stop steroid trigger, Topical metronidazole, Oral
tetracycline therapy if persistent
◉ Foliculitis S/Sx
Answer: Folicular pustules/papules, Often itchy, tender
, ◉ Foliculitis Tx
Answer: Hygiene, Topical abx, Antiseptic washes, Oral abx if
extensive
◉ Hyperhydrosis S/Sx
Answer: Excessive sweating
◉ Hyperhydrosis Tx
Answer: Topical aluminum chloride first line, Iotophoresis, Botox,
oral anticholinergics
◉ Hidradentitis Suppurativa S/Sx
Answer: Painful, recurrent nodules, abscesses, Draining sinus tracts,
Scaring in the axillae, groin, imflammatory folds
◉ Hidradentitis Suppurativa Tx
Answer: Weightloss, smoking cessation, Topical clindamycin (Mild),
Oral abx for flares, Biologic therapy for mod/sever, Surgery for
advanced disease
◉ Minor Burns S/Sx
