What should healthcare professionals refrain from doing to ensure quality health care for all patients? a. stereotyping and having prejudices against certain people b. using nonverbal communication such as hand gestures c. referring patients to other healthcare professionals d. sharing patient charts with the patients’ families e. hiring an interpreter to communicate with patients

To me, it appears that A, B and D could all have negative aspects. (Stereotyping is a form of discrimination, B has a chance of miscommunication, and D violates patient confidentiality if the patient is over 18 y/o.) SO if it's a multiple selection question I would pick those. Otherwise, if it's a one-choice answer then A is definitely the one to pick.  

Hope that my answer helps!

to prevent people from getting the ebola virus, countries around the world paid to doctors develop a new vaccine. now that the vaccine has been made, doctors will need to experiment on a large number of people to find out if it works safely.

what is the greatest limitation that scientists are dealing with as they try to figure out how to experiment with the ebola vaccine?

meditation is a practice of sitting still and quiet for minutes or even hours. it has been practiced for thousands of years and is even a part of religious practices for some people. carefully controlled, repeated measurements of brain activity have shown that meditation does increase certain chemicals in the brain and even grows the part of the brain that people connect with their current surroundings and activities.

are claims about the effects of meditation most likely scientific or pseudoscientific?

not pseudoscientific, because people have made claims about it but scientific observations have not been made