Collection ProceduresCâu 12 / 100
What is the maximum lancet penetration depth for a heel stick on a newborn?
a.There is no depth limit if the heel is warmed
b.3.5 mm
c.5.0 mm
d.2.0 mm
Giải thích
Penetration must not exceed 2.0 mm because the calcaneus in a newborn may lie only 2 to 3 mm below the plantar skin, and bone contact can cause osteomyelitis. Depths of 3.5 mm or 5 mm greatly increase that risk. Warming the heel improves blood flow but does not change the safe depth limit.
Trích dẫn luật: CLSI GP42Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
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