What is the earliest clinical manifestation of biliary atresia?

The correct answer is choice B: Lesions may extend to hairline or neck.

Choice A rationale:

Central clearing is not a prominent indicator of Tinea capitis. Tinea capitis is a fungal infection of the scalp and hair shafts, commonly caused by dermatophytes like Trichophyton species. The characteristic features include scaling, erythema, pustules, and hair loss. Unlike some other fungal infections, Tinea capitis does not typically have central clearing.

Choice B rationale:

Lesions extending to the hairline or neck is a correct aspect to include in education about Tinea capitis. The infection usually starts as small, scaly patches on the scalp and can progress to larger areas. It can extend to the hairline, neck, and even eyebrows and eyelashes. This is important information to convey to ensure proper recognition and timely treatment.

Choice C rationale:

Transmission of Tinea capitis mostly occurs from human-to-human rather than from dogs. While some animals can carry fungal infections that affect the skin, Tinea capitis is primarily spread through direct contact with an infected person or contaminated objects like combs, hats, and pillows.

Choice D rationale:

The appearance of Tinea capitis is not usually unilateral. This condition often presents with multiple, scattered areas of involvement on the scalp. It can cause varying degrees of inflammation, scaling, and hair loss in different areas, which may not follow a unilateral pattern.

The correct answer is Choice B: Dry skin.

Choice A rationale:

Diarrhea is not a common clinical manifestation of juvenile hypothyroidism. Hypothyroidism is characterized by an underactive thyroid gland, leading to a decrease in metabolic activity. Symptoms of hypothyroidism include fatigue, weight gain, cold intolerance, constipation, and dry skin, but not diarrhea.

Choice B rationale:

Dry skin is a common clinical manifestation of juvenile hypothyroidism. The decreased thyroid function results in a slower metabolic rate, which can lead to dry and coarse skin due to reduced oil production. This symptom is often seen in hypothyroid patients.

Choice C rationale:

Insomnia is not a common clinical manifestation of juvenile hypothyroidism. Hypothyroidism usually leads to fatigue and excessive sleepiness rather than insomnia.

Choice D rationale:

Accelerated growth is not a common clinical manifestation of juvenile hypothyroidism. In fact, the opposite is true. Hypothyroidism in children can lead to growth retardation due to the decreased metabolic rate and altered hormonal balance.