The most current vaccine in modern medicine was created for:

Red blood cells typically last about ________

a. two weeks b. four weeks c. two months d. four months

In your response district, you have a subject who walks around in a white plastic suit collecting small pieces of plastic in a shopping cart. You observe that he frequently talks to himself and the things he picks up off the ground. He presents not danger to himself or others as he seems to live in his own world. This patient is probably suffering from:

A) delirium. B) bipolar disorder. C) schizophrenia. D) anxiety neurosis.