What is the role of vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF) in cell metastasis?
a. To stimulate growth of nearby tumor cells
b. To develop new blood vessels to feed cancer cells
c. To prevent cancer cells from escaping apoptosis
d. To act as a chemical gradient to guide cells to blood vessels
Ans: b. To develop new blood vessels to feed cancer cells
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What is the purpose of the myelin sheath?
A) Protects the nerve from damage B) Speeds electrical conduction C) Produces Schwann cells D) Secretes neurotransmitters
A client is demonstrating how to use a peak flow meter. The nurse determines that the client is successful when he does which of the following? Select all that apply
A) Inhales as forcibly as possible B) Stands upright to allow the best inhalation possible C) Makes sure indicator is at lowest level on scale D) Makes sure lips are sealed tightly around the mouthpiece E) Measures peak flow rate at different times each day
Which indicates there is secondary vaccine failure?
A) The failure of a vaccine to stimulate any immune response B) The waning of immunity following an initial immune response C) Vaccine failure caused by improper storage or improper administration route D) State in which those not immune will be safe if a certain proportion of the population has been vaccinated
The basic psychiatric nursing intervention that supports problem solving, is usually time-limited, and can be applied to individual patients, a family, or a group is:
A) Crisis care. B) Health teaching. C) Counseling. D) Research.