A nurse administers a drug to a client. Following ingestion, the drug crosses a membrane from an area of higher concentration to an area of lower concentration. The nurse understands that this is an example of which of the following?
A. Active transport
B. Osmosis
C. Diffusion
D. Metabolism
Answer: C
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Which of the following physiological processes would be considered a positive feedback mechanism?
A) The release of antidiuretic hormone (ADH) from the posterior pituitary gland B) Shivering in response to low environmental temperature C) The platelet aggregation mechanism for closing minute ruptures in very small blood vessels during accidental injury D) Increased production of white blood cells (WBCs) in response to a microorganism
A 16-year-old girl is taken to the emergency department after being kicked in the lower leg during a volleyball match. The leg area has become swollen and discolored. The triage nurse recognizes that the patient has likely sustained what?
A) Sprain B) Strain C) Contusion D) Dislocation
A client who is experiencing rheumatoid arthritis (RA) is about to be discharged after a week's stay in the hospital. The client tells the nurse, "I can't believe how much better I am feeling now."
To achieve this feeling by the client, the nurse is aware that: 1. Keeping the client busy each day worked well. 2. Staggering care by other disciplines allowed the client to rest. 3. The client's disease process has been stopped. 4. The client appreciated the various levels of care given.
A nurse studying the neurobiology of brain development knows that applying the term neuroplasticity to brain development means that the brain:
A) Neurons communicate with one another. B) Neurons are able to stretch to reach one another. C) Loses hundreds of neurons every day of life. D) Is able to repair itself, refine structures, and respond to change.