Which abnormality of the nail bed can be caused by iron deficiency anemia?
a. Beau's lines
b. Paronychia
c. Koilonychia
d. Splinter hemorrhages
C
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A Beau's lines can be caused by systemic illness or a nail injury.
B Paronychia can be caused by a local infection or trauma.
C Koilonychia, or spoon nail, can be caused by iron deficiency anemia.
D Splinter hemorrhages can be caused by minor trauma, endocarditis, and trichinosis.
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