Final answer:
Vitamin K deficiency can occur in newborn infants who are exclusively breastfed and in individuals with chronic wasting diseases and certain medical conditions.
Step-by-step explanation:
Vitamin K deficiency can occur in various situations and conditions. Newborn infants who are exclusively breastfed may have vitamin K deficiency if their mother's diet is low in vitamin K. Additionally, individuals with chronic wasting diseases like malnutrition, prolonged negative nitrogen balance, gastrointestinal losses, and metabolic alkalosis may also experience vitamin K deficiency. Patients with Wilson's disease, nephrosis, severe hypoproteinemia, obstructive jaundice, and hepatocellular damage may also be at risk for vitamin K deficiency.