DETAILED CORRECT ANSWERS; A+ GRADE
STUDY RESOURCE 2026-2027
4.6% complete
Question
Which of the following is considered as a precursor lesion
of squamous cell skin cancer?
A.Atopic dermatitis
B.Actinic keratosis
C.Seborrheic keratosis
D.Nevi - correct answer- B. Actinic keratosis
(AK) is the precursor lesion of squamous cell carcinoma of
the skin. It is caused by chronic sunlight exposure or
chronic indoor tanning (UV rays). Several to many lesions
are common. It is located in sun-exposed areas, such as
the face, the dorsum of the arms and hands, and the
chest. It appears like a small dry, scaly-to-rough patch of
skin that does not go away, and it may bleed with trauma.
Only about 5% to 10% of AK will turn into skin cancer, but
it can become invasive. Atopic dermatitis and eczema are
pruritic and appear in hands, knees, and other classic
,areas. Seborrheic keratosis looks like soft warts pasted on
the skin; most are located on the back and can range in
color from tan to black. It does not itch or hurt and is
benign.
35.2% complete
Question
A patient presents to the clinic complaining of a painful,
itchy rash on the elbows and knees that appears as raised
erythematous patches of silvery, scaly skin. The patient
states that the rash has occurred before but resolved
without treatment. For which condition should the nurse
practitioner treat?
A.Impetigo
B.Psoriasis
C.Xerosis
D.Contact dermatitis - correct answer- Solution:
B
Psoriasis.
Psoriasis causes rapid cell buildup on the skin, causing red,
dry, itchy, raised patches covered with silvery lesions.
, Plaques frequently occur on the elbows and knees but can
occur on other body areas. Impetigo is an infection caused
by gram-positive bacteria; the lesions appear as small and
red and are pus filled. Impetigo occurs most frequently in
small children. Xerosis is an inherited skin disorder
characterized by extremely dry mucosal skin surfaces.
Contact dermatitis is an inflammatory skin reaction
caused by direct exposure with an irritant. Contact
dermatitis can occur as a single lesion or a generalized
rash.
A 13-year-old girl wants to be treated for his acne. He has
a large number of closed and open comedones on his
face. The patient has been treating himself with over-the-
counter benzoyl peroxide and topical salicylic acid
products. Which of the following would be recommended
next?
A.Isotretinoin (Accutane)
B.Tetracycline
C.Retin-A 0.25% gel
D.Careful face washing with medicated soap at bedtime -
correct answer- Solution: C
Retin-A 0.25% gel.