401 Prep Exam 3 Questions With Complete Correct Answers.
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Course
NURS 401
Institution
NURS 401
A healthcare provider prescribes mannitol for a client with a head injury. The nurse concludes that the purpose of the medication is to relieve cerebral edema by which mechanism?
a. decreasing the production of cerebrospinal fluid
b. limiting the metabolic requirements of the brain
c. drawing fl...
401 Prep Exam 3 Questions With
Complete Correct Answers.
A healthcare provider prescribes mannitol for a client with a head injury. The nurse concludes that the
purpose of the medication is to relieve cerebral edema by which mechanism?
a. decreasing the production of cerebrospinal fluid
b. limiting the metabolic requirements of the brain
c. drawing fluid from brain cells into the bloodstream
d. preventing uncontrolled electrical discharges in the brain - Answer c. drawing fluid from the brain
cells into the bloodstream
mannitol, an osmotic diuretic, pulls fluid from the white cells of the brain to relieve cerebral edema
The nurse is caring for a client who was just admitted to the hospital with the diagnosis of head trauma.
Which clinical indicators should the nurse consider as evidence of increasing intracranial pressure? SATA
a. vomiting
b. irritability
c. hypotension
d. increased respirations
e. decreased level of consciousness - Answer a. vomiting
b. irritability
e. decreased LOC
Anorexia and N/V occur because of pressure on the brain. Increasing pressure on the vital centers of the
brain and irritation of cerebral tissue result in irritability and seizures. Increased intracranial pressure
disrupts neurons and neurotransmitters, resulting in faulty impulse transmission and an altered LOC.
BP will be increased and RR will be decreased (cushing's triad).
A client with a head injury is admitted to the hospital. Which assessment finding alerts the nurse to
increasing ICP?
, a. hypervigilance
b. constricted pupils
c. increased HR
d. widening pulse pressure - Answer d. widening pulse pressure
pressure on the vital centers in the brains causes an increase in SBP, widening the difference between
SBP and DBP
The nurse uses the GCS to assess a client's status after a head injury. When the nurse applies pressure to
the nail bed of a finger, which movement of the client's upper arm should cause the MOST concern?
a. flexing
b. localizing
c. extending
d. withdrawing - Answer c. extending
decerebrate (extension) posturing indicates severe brain injury. The only more serious response is total
lack of response.
The nurse is caring for a client who had a TBI with increased ICP. Which healthcare provider prescription
should the nurse question?
a. continue anticonvulsants
b. teach isometric exercises
c. continue osmotic diuretics
d. keep head of bed at 30 degrees - Answer b. teach isometric exercises
isometric exercises increase the basal metabolic rate and ICP.
A client is brought by ambulance to the ED. The client's s/s are indicative of opioid overdose. What does
the nurse expect the primary HCP to prescribe?
a. naloxone
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