Which best represents the safe use of equipment by a nursing assistant? asking a nurse to demonstrate how to use a new monitor to measure heart rate and blood pressure
trying to fix a patient’s bed that was having problems adjusting up and down before putting the patient back into bed
determining a thermometer was broken, getting a new one, and placing the broken one back on the shelf
making sure the oxygen tanks are full after placing the mask properly on a patient

its "give abdominal thrusts" that way you can dislodge the object in the persons throat.

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

the answer is d its the most logical and accurate out of them all : )