Explain why tissues with high water content can give a sharper resolution using MRI
What will be an ideal response?
Body tissues with a high water content are a rich source of protons capable of excitation. The intensity of the signals produced is related to the varying water content of body tissues and to the strength and duration of the radiofrequency pulse.
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Which mental illness should a nurse identify as being associated with a decrease in prolactin hormone level?
1. Major depressive episode2. Schizophrenia 3. Anorexia nervosa4. Alzheimer's disease
According to the state Nurse Practice Act, authority is given for the RN and LPN to give medications. Authority is best defined as which of the following?
A. the nurse uses good judgment and appropriate actions while carrying out professional responsibilities B. the nurse is responsible for administering medications according to the state Nurse Practice Act C. the nurse is acting under a nursing agreement referred to as a compact D. authority is a privilege given to those individuals who are named by law to administer medications
The removal of particles from a solution by allowing the liquid portion to pass through a membrane or other partial barrier is called:
A. osmosis. B. diffusion. C. filtration. D. bioavailability.
A client pregnant at 41 weeks asks if labor induction is necessary. Which response is best for the nurse to make?
1. "The healthcare provider wants to be proactive in preventing any problems with your baby if the baby gets any bigger." 2. "Sometimes the placenta ages excessively, and we want to take care of that problem before it happens." 3. "When infants are born 2 or more weeks after their due date, they have meconium in the amniotic fluid." 4. "Babies can develop postmaturity syndrome, which increases their chances of having complications after birth."