Which of the following can either stimulate neurons to send a nerve impulse or inhibit them from sending an impulse?
A. Synaptic knob
B. Axon diameter
C. Neurotransmitter
D. Interneuron
E. Cell body
C. Neurotransmitter
Various neurotransmitters can cause muscles to contract or relax, because glands to secrete products activate neurons to send impulses, or inhibit neurons from sending nerve impulses.
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Bloodborne diseases may be accidentally passed:
A. by accidental needle sticks that have been contaminated with diseased blood. B. when infected blood comes in contact with the eyes, nose, mouth, or skin. C. from an infected mother to her infant. D. All of the above E. None of the above
You can shield yourself from beta particles using:
A. 3 cm of dry air. B. a thick piece of paper. C. a 1 cm thickness of aluminum. D. all of the above
Which type of cerebrovascular accident (CVA) is characterized by a wandering clot that may become lodged in a cerebral artery?
A. embolism B. infarction C. hemorrhage D. thrombosis
To be in compliance with HIPAA, phlebotomists should:
A. close the door to the patient's room after entering. B. stay logged onto the computer so that they don't waste time logging in and out. C. discuss interesting patient situations with coworkers. D. allow patient's family members access to the laboratory's computer.