Which of the following statements is FALSE concerning digital clubbing or how chronic lung disease causes digital clubbing?
A) Hypoxemia (insufficient oxygen in the blood) results in the formation of arterial-venous anastomoses in the terminal digits.
B) Looking at the digits from above, the terminal portion decreases in diameter.
C) In clubbing, the angle between the nailbed and finger becomes increased.
D) The circulatory changes result in dramatic changes in the terminal portions of the digits (both fingers and toes) .
Correct Answer:
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