DHA Exam Dermatology MCQs: Practice Questions With Answers
Sample DHA licensing exam MCQs from Dermatology — already drawing organic search interest on HighYield's DHA subject page despite no dedicated practice post yet — covering psoriasis, scabies and common skin infections.
Dermatology is a 127-question subject in HighYield's DHA question bank that doesn't yet have a dedicated practice post — even though HighYield's own DHA Dermatology subject page already picks up organic search visits. Below is a sample set of Dermatology MCQs in the clinical-vignette style tested on the DHA licensing exam.
Papulosquamous & Inflammatory Conditions
1. A well-demarcated, silvery-scaled plaque on the extensor surfaces (elbows, knees) is most characteristic of:
- A) Eczema
- B) Psoriasis ✅
- C) Lichen planus
- D) Pityriasis rosea
2. Pinpoint bleeding when scales are scraped off a psoriatic plaque is known as:
- A) Koebner phenomenon
- B) Nikolsky sign
- C) Auspitz sign ✅
- D) Darier sign
3. The appearance of new psoriatic lesions at sites of skin trauma is called:
- A) Auspitz sign
- B) Koebner phenomenon ✅
- C) Nikolsky sign
- D) Wickham's striae
4. Atopic dermatitis (eczema) is classically part of a triad with asthma and:
- A) Psoriasis
- B) Allergic rhinitis ✅
- C) Vitiligo
- D) Alopecia areata
Infections & Infestations
5. Scabies is caused by infestation with:
- A) Pediculus humanus
- B) Sarcoptes scabiei ✅
- C) Demodex folliculorum
- D) Cimex lectularius
6. Scabies burrows are classically found in the:
- A) Scalp
- B) Face
- C) Interdigital web spaces ✅
- D) Soles of the feet
7. A ring-shaped, scaly, itchy skin lesion with central clearing is typical of:
- A) Tinea corporis ✅
- B) Psoriasis
- C) Vitiligo
- D) Impetigo
8. Impetigo, a superficial bacterial skin infection common in children, is most commonly caused by Staphylococcus aureus or:
- A) Pseudomonas aeruginosa
- B) Streptococcus pyogenes ✅
- C) Escherichia coli
- D) Klebsiella pneumoniae
Pigmentary & Neoplastic Conditions
9. Well-defined, depigmented patches of skin due to loss of melanocytes describe:
- A) Vitiligo ✅
- B) Albinism
- C) Melasma
- D) Pityriasis alba
10. The most common type of skin cancer overall, which rarely metastasizes, is:
- A) Malignant melanoma
- B) Squamous cell carcinoma
- C) Basal cell carcinoma ✅
- D) Kaposi sarcoma
11. The ABCDE rule (Asymmetry, Border, Color, Diameter, Evolving) is used to clinically screen for:
- A) Basal cell carcinoma
- B) Malignant melanoma ✅
- C) Psoriasis
- D) Seborrheic keratosis
Drug Reactions & Miscellaneous
12. A severe mucocutaneous drug reaction with skin detachment affecting less than 10% of body surface area is termed:
- A) Toxic epidermal necrolysis
- B) Stevens-Johnson syndrome ✅
- C) Erythema multiforme
- D) DRESS syndrome
13. Wickham's striae (fine white lines on lesion surfaces) are a classic finding in:
- A) Psoriasis
- B) Lichen planus ✅
- C) Pityriasis rosea
- D) Eczema
Prepare with HighYield
HighYield's DHA question bank covers Dermatology alongside Family Medicine, Cardiology, Neurology, Infectious Diseases and every other discipline tested in the DHA licensing exam, with every question explained. For the full picture of exam fees, see our DHA Exam Fees guide.