Patho NR283 Week 3 Questions and Answers
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Which of the following describes the functions of cerebral spinal fluid?
Select all that apply. Ans: It protects the brain from injury.
It maintains homeostasis by regulating metabolites around the brain.
It exchanges gases with the blood to maintain oxygenation of the brain.
It collects waste products secreted by brain cells.
Which of the following is accurate about the cerebral spinal fluid circulatory
system? Ans: It is a closed system in which there is no escape for cerebral
spinal fluid under high pressure.
Place the following layers of the skull and brain in the correct order (from
outside to inside). Ans: Skin
Skull
Dura mater
Arachnoid mater
Subarachnoid space
Pia mater
Brain
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Which of the following can increase intracranial pressure? Select all that
apply. Ans: Excessive amounts of spinal fluid
Brain tumor
Subdural hematoma
Meningitis
When intracranial pressure becomes life-threatening, blood
pressure__________ , the heart rate __________, respirations ___________, and
pulse pressure ____________. If the pressure is not _____________, death will
occur. Ans: Rises
Slows
Decrease
Widens
Decreased
Select the correct symptom of high brain pressure to match its cause or the
explanation of why it occurs. Ans: chart
If increased intracranial pressure is suspected, which tests would you expect
to be ordered to identify these elevated pressures? Ans: Computed
tomography (CT) scan of the head
How is the brain able to relieve high amounts of pressure that may occur
with an injury to the head? Ans: The brain is limited and unable to reduce
higher pressures without outside intervention.
Read the case study below and then select the following signs and
symptoms consistent with increased intracranial pressure. Ans: chart
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, 3 | Page
Kaylee, (preferred pronouns: she, her), a teenager, was riding her bike when
she fell and hit her head. She was not wearing a helmet. She had abrasions
on both knees. Two hours later, she was experiencing nausea with vomiting,
a severe headache, and was mildly confused. Her pupils are dilated and
slowly react to light. The healthcare provider mentioned that Kaylee had
papilledema. Her vital signs included a blood pressure of 180/40, pulse of
45, and respirations of 10. The temperature is 98.6 °F. She has asthma and
eczema. She was taken to the hospital for further evaluation.
Which of the following could be the cause of increased intracranial
pressure? Select all that apply. Ans: Bleeding into the subarachnoid space
Bleeding into the subdural space
After the bicycle accident, bleeding in the brain started to __________ the
surrounding pressure. At the same time, cerebral edema from the injury
_________ the amount of _________ in the brain, causing ___________ pressure.
The brain pressure must be ______________ for Kaylee to recover. Ans:
Increase
Increases
Spinal fluid
Increased
Reduced
Which of the following could reduce the risk of death for Kaylee? Select that
all apply. Ans: Keeping the head of the bed elevated
Wearing a helmet
Surgery to remove excessive blood in the brain
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