A patient who wants to quit smoking has a prescription for varenicline [Chantix], which will be used with a nicotine patch. The patient asks the nurse why the varenicline is necessary. Which statement by the nurse is correct?a. "It helps patients experiencing withdrawal to sleep better."b. "It helps reduce anxiety and other withdrawal symptoms."c. "It will help reduce the likelihood of addiction to the patch."d. "The drug blocks nicotine's access to 'pleasure' receptors."

Drug that change your sense of and make you see and hear thing that are not real

Which of these is likely to be the best source of valid health information?

As you sit in the library with your friend studying for your weekly quiz on the integumentary system, you come upon an article about the hazards of prolonged exposure to the sun's rays. your curious nature leads you to research the subject further. you're fascinated to learn that minimal exposure to the sun allows you skin to manufacture vitamin d, which is important to maintain homeostasis. you also read that although sunscreen can protect you from the ultraviolet (uv) rays of the sun, some medications can actually increase a person's sensitivity to the sunlight.