The process by which molecules move from a region of higher concentration to one of lower concentration is known as:

1. diffusion.
2. osmosis.
3. filtration.
4. solubility.


1
In diffusion, molecules move from a region of higher concentration to one of lower concentra-tion. The organs that have the biggest blood supply receive medication more quickly, and areas of skin and fat receive the medication more slowly.

Nursing

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A nurse is teaching a female client with rheumatoid arthritis (RA) about taking methotrexate (MTX) (Rheumatrex) for disease control. What information does the nurse include? (Select all that apply.)

a. "Avoid acetaminophen in over-the-counter medications." b. "It may take several weeks to become effective on pain." c. "Pregnancy and breast-feeding are not affected by MTX." d. "Stay away from large crowds and people who are ill." e. "You may find that folic acid, a B vitamin, reduces side effects."

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A client with chronic pain from herniated intervertebral disks is experiencing constipation. What intervention would be appropriate for this client?

A) Restrict foods high in fiber. B) Avoid the use of stool softeners. C) Encourage fluid intake of 2,500-3,000 ml each day. D) Medicate for pain around the clock.

Nursing

A patient is brought to the emergency department after ingesting an overdose of lorazepam (Ativan) several hours prior. The patient has a respiratory rate of 6 to 10 breaths per minute and is unconscious. The nurse will prepare to perform which action?

a. Administer activated charcoal. b. Give flumazenil (Romazicon). c. Give naloxone (Narcan). d. Perform gastric lavage.

Nursing

The committee has established the need for a sick child clinic in an impoverished neighborhood

The demographic data have been collected, and the committee is ready to meet with a group of local businesspeople who are willing to support the project financially. The plan is for the committee and group to combine to facilitate the establishment of the clinic. Using a transtheoretical model, which level of readiness has the committee achieved? A) Contemplation B) Preparation C) Action D) Relapse

Nursing