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MN 551 Unit 9 Chapter 13-18 Exam Questions and Answers
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MN 551 Unit 9 Chapter 13-18 Exam Questions and Answers
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MN 551 Unit 9 Chapter 13, 15, 16, 17, 18The nurse knows that which of the following phenomena listed below is an accurate statement about
axonal transport - Answer -Materials can be transported to the nerve terminal by either a fast or slow
component
An adult male has a new diagnosis of Guillain Barre syndrome. The nurse knows which of the following
pathophysiological processes underlie the deficits that accompanied the degeneration of myelin in his
peripheral nervous system - Answer -Unless re-myelination occurs the axon will eventually die
While assessing a critically ill patient in the emergency department the nurse notes on the cardiac
monitor an R on T premature ventricular beat that develops into ventricular tachycardia. Immediately
the patient became unresponsive. The nurse knows that based on the pathophysiologic principles the
most likely cause of this unresponsiveness is - Answer -Interruption of the blood/oxygen supply to the
brain
When educating a patient about to undergo a pacemaker insertion the nurse explains the normal phases
of cardiac muscle tissue. During the repolarization phase the nurse will stress that the membranes must
be re-polarized before they can be re-excited. Within the cell the nurse understands that - Answer -
Potassium channels open while sodium channels close causing repolarization to the resting state
A client with a diagnosis of depression has been prescribed a medication that ultimately increases the
levels of neurotransmitter serotonin between neurons. Which of the following processes will accompany
, the actions of the neurotransmitter in a chemical synapse? - Answer -More neurotransmitters will cross
the synaptic cleft's and bond with postsynaptic receptors
The Neurotransmitter GABA Mainly functions to trigger inhibitory postsynaptic potential. Therefore
when explaining this to a group of nursing students the nurse will state that - Answer -The combination
of GABA with the receptor site is inhibitory since it causes the local nerve membrane to become hyper
polarized and less excitable
When reviewing the purpose/action of neurotransmitters as they interact with different receptors the
nurse instructor gives an example using acetylcholine. When Acetylcholine is released at the SA node in
the right atrium of the heart it is - Answer -Inhibitory
A mail newborn infant has been diagnosed with spina bifida occulta. Which of the following
pathophysiological processes has most likely contributed to the infants health problem - Answer -The
neural groove failed to fuse and completely close across the top of the neural plate
A child is experiencing difficulty with chewing and swallowing. The nurse knows that which of the
following cells may be innervating specialize got related receptors that provide taste and smell - Answer
-Special visceral afferrent cells
A nursing student having trouble moving his head from side to side is likely experiencing a problem with
which type of neurons? - Answer -Pharyngeal efferent neurons.
Following a spinal cord injury suffered in a motor vehicle accident a 22-year-old male has lost fine motor
function of his fingers and thumb but is still able to perform gross motor movements of his hand and
arm which of the following components of his white matter have likely been damaged? - Answer -The
outer layer (neolayer)
Not realizing that it's surface was hot a woman has quickly withdrawn her hand from the surface of a
bowl that she was removing from a microwave. Which of the following phenomena has facilitated the
rapid movement of her hand in response to the painful stimulus? - Answer -Her CNS has an acted a
productive response received by neurons that innervate her arm muscles
A taekwondo master is applying downward pressure just above the elbow joint on an attacker who
immediately collapses to the ground. The taekwondo master knows the elbow joint can bend inward
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