Which of the following compounds chelates iron and is the immediate precursor of heme formation?

Patient is a 36-year-old male who was participating in a local radio contest to try to win a car. He and the other contestants had to touch a car and not take their hand off. Those that took their hand off were disqualified. This particular patient was one of only two contestants left after 48 hours. The patient started acting rather strange at hour 48, speaking gibberish and trying to swat a

non-existent fly. He did not win the car, as he had removed his hand to swat the "fly." He was taken to the local emergency room because of his strange behavior, where he was diagnosed with sleep deprivation. How would this be coded? What will be an ideal response?

A 38 year old man was rushed to the hospital because of bloody diarrhea. The doctor said that the cause can be a single-celled organism. Which organism is he referring to?

a. Lyme b. Amoeba c. Salmonella d. Trichomonas