American Association of Colleges of Nursing (AACN) - The Clinical Nurse Leader; American Association of Colleges of Nursing's White Paper on the Education and the Role of the Clinical Nurse Leader; American Association of Managed Care Nurses; American Board of Managed Care Nursing; AONE Institute for Leadership Research & Education
1 Female fleas cannot lay eggs until after their first blood meal and begin to lay eggs within 36-48 hours after that meal. 2  The female flea can lay 2,000 eggs in her lifetime.  The female flea consumes 15 times her own body weight in blood daily.
Stage 3: The Adult. Once the larvae get to the intestine, they mature into adult worms and begin laying eggs â starting the cycle again. It takes about four weeks from the time a dog or cat eats the eggs for an adult worm to mature in the animalâs intestine and start laying eggs.