Case Study of J.R. – Medical-Surgical Nursing
injury causing displacement or damage, while secondary
brain injury results from hypoxia, ischemia, or increased
ICP that follows the primary injury. What does ICP stand
for in neuro assessment? - ANSWER//Intracranial
Pressure What is the normal range for ICP? -
ANSWER//5-15 mmHg; sustained ICP >20 mmHg is
abnormal. What is the Monro-Kellie doctrine? -
ANSWER//It states that the total volume of brain tissue,
blood, and CSF must remain constant within a closed
skull. What are the clinical manifestations of increased
ICP? - ANSWER//Change in LOC, Cushing's triad, ocular
,signs, decreased motor function, headache, and
unexpected vomiting. What is Cushing's triad? -
ANSWER//HTN with widening pulse pressure,
bradycardia with a bounding pulse, and irregular
respirations. What is the gold standard for monitoring
ICP? - ANSWER//Ventriculostomy, which involves
inserting a catheter into the lateral ventricle. What is
the purpose of a lumbar puncture (LP)? - ANSWER//To
collect cerebrospinal fluid (CSF) for analysis, but it is
contraindicated if ICP is increased. What should be
monitored post-lumbar puncture? - ANSWER//Neuro
status, vitals, headache, drainage from the puncture site,
and signs of complications. What are some diagnostic
procedures for neuro assessment? - ANSWER//Cerebral
angiogram, CT scan, MRI, PET scan, and
Electroencephalography (EEG). What does a CT scan
detect in neuro assessment? - ANSWER//Hemorrhage,
tumors, edema, infarction, and brain atrophy. What is
the role of EEG in neuro diagnostics? - ANSWER//To
record electrical activity of the brain and evaluate
seizure disorders and brain injuries. What are the
potential causes of increased ICP? - ANSWER//Masses,
cerebral edema, and accumulation of fluid in brain
tissue. What is cerebral edema? - ANSWER//Increased
accumulation of fluid in the extravascular spaces of
brain tissue. What is the significance of a fixed, dilated
pupil in neuro assessment? - ANSWER//It indicates a
medical emergency, potentially signifying brain
herniation. What is the purpose of a neuro assessment?
- ANSWER//To evaluate mental status, cranial nerves,
motor and sensory function, and deep tendon reflexes.
,What is the role of monitoring vital signs in patients with
increased ICP? - ANSWER//To detect changes that may
indicate worsening neurological status or impending
emergencies. What is the impact of sustained increased
ICP on cerebral perfusion pressure (CPP)? - ANSWER//It
decreases CPP, increasing the risk for brain ischemia and
infarction. What is the definition of traumatic brain
injury (TBI)? - ANSWER//An injury to the brain resulting
from trauma, which can lead to primary and secondary
brain injuries. What are the two types of strokes? -
ANSWER//Ischemic and hemorrhagic. What are the key
components of a neuro assessment? -
ANSWER//Subjective data (history), objective data
(mental status, cranial nerves, motor/sensory function,
reflexes). What should CSF look like if normal? -
ANSWER//Clear, odorless, with no red blood cells and
little protein. What is the foramen of Monro's
significance in ICP monitoring? - ANSWER//It indicates
that the transducer level should be at the tragus of the
ear for accurate ICP readings. What are some causes of
inaccurate ICP readings? - ANSWER//CSF leak around
the monitoring device, catheter obstruction, transducer
not level, and kinks in tubing. What is a major risk
associated with ICP monitoring? - ANSWER//Risk of
infection. What is one method to control increased ICP?
- ANSWER//Removing CSF with a ventricular catheter.
What is the first step in managing increased ICP? -
ANSWER//Identify and treat the cause of increased ICP
and support brain function. What are some
interventions for managing increased ICP? -
ANSWER//ABCs, ICP and CPP monitoring, monitor ABGs,
, prevent hypoxia and hypercapnia, keep SBP between
100-160, elevate HOB to 30 degrees, keep head in a
neutral position. What drug is commonly used as an
osmotic diuretic in ICP management? -
ANSWER//Mannitol. What is a common cause of head
injuries? - ANSWER//Falls, motor vehicle accidents
(MVAs), firearms, assaults, sports-related trauma,
recreational injuries, and war-related injuries. What is a
Traumatic Brain Injury (TBI)? - ANSWER//The most
serious form of head injury involving trauma to the scalp,
skull, or brain. What are scalp lacerations? -
ANSWER//External head trauma that typically bleeds a
lot. What is a Battle sign? - ANSWER//Postauricular
bruising indicating a skull fracture. What test can be
used to check for a CSF leak? - ANSWER//Dextrostix or
Tes-Tape for glucose, or checking for halo or ring sign.
What is a concussion? - ANSWER//A sudden, transient
head injury with disruption of neural activity and change
in LOC. What characterizes a diffuse axonal injury (DAI)?
- ANSWER//Widespread axonal damage occurring after
a TBI, taking 12-24 hours to develop. What is an epidural
hematoma? - ANSWER//A neurologic emergency
resulting from arterial bleeding between the dura and
inner surfaces of the skull. What are the symptoms of a
subdural hematoma? - ANSWER//Decreased LOC,
headache, drowsiness, confusion, or unconsciousness.
What is the management for head injuries? -
ANSWER//Diagnosis via CT, MRI, or PET scan; assess
neuro status, monitor ICP, maintain cerebral
oxygenation, and prepare for surgery. What are the
clinical manifestations of bacterial meningitis? -