Which of the following eating disorders is characterized by the use of laxatives and vomiting after binge eating?

A. Prone: The prone position (lying face down) is not suitable for venipuncture or for patients at risk of syncope.
B. Trendelenburg: The Trendelenburg position (lying flat with the legs elevated) can help prevent syncope by increasing venous return to the heart and improving blood flow to the brain.
C. Supine: While the supine position (lying flat on the back) is appropriate for venipuncture, the Trendelenburg position is preferred for patients with a history of syncope.
D. Fowler's: The Fowler's position (sitting or semi-sitting) is not suitable for preventing syncope during blood draws.

A. Reservoir: The reservoir is the place where a pathogen lives and multiplies, such as a human, animal, or environment. It is not how the pathogen enters a new host.
B. Susceptible host: The susceptible host is the individual who can potentially be infected by the pathogen. However, this term does not describe how the pathogen enters the host.
C. Portal of entry: The portal of entry is the correct term for the route by which a pathogen enters a new host, such as through the respiratory tract, gastrointestinal tract, or broken skin.
D. Mode of transmission: The mode of transmission refers to how the pathogen is spread from one host to another, such as through direct contact, airborne particles, or vectors. It does not describe how the pathogen enters the host.