Question

What is the most common sign of vitamin K deficiency?

1) Bloody stools
2) Oozing from the umbilicus
3) Red pinpoint dots on an infant's face and neck
4) None of the above

Answer 1

The most common sign of vitamin K deficiency is bloody stools.

Step-by-step explanation:

The most common sign of vitamin K deficiency is bloody stools. This occurs because vitamin K is necessary for blood clotting. When there is a deficiency, the blood clotting function is impaired, resulting in bleeding in the digestive tract. Oozing from the umbilicus and red pinpoint dots on an infant's face and neck are not typically associated with vitamin K deficiency.