CNRN Exam UPDATED ACTUAL
Questions and CORRECT Answers
specific condition of small vessels that can lead to lacunar strokes - CORRECT
ANSWER✔✔- lipohyalinosis
what is the greatest risk factor for lacunar strokes - CORRECT ANSWER✔✔- hypertension
tiny areas of ischemic necrosis caused by occlusion of small penetrating arteries - CORRECT
ANSWER✔✔- lacunar strokes
what percentage of ischemic strokes do lacunar strokes account for - CORRECT
ANSWER✔✔- 25%
what are the 5 classic syndromes of lacunar strokes - CORRECT ANSWER✔✔- pure motor
hemiparesis, ataxic hemiparesis, dysarthria/clumsy hand syndrome, pure sensory stroke, and
mixed sensorimotor stroke
what is the only non-pain sensitive tissue in the head/brain - CORRECT ANSWER✔✔-
brain parenchyma
what is the biggest insurmountable obstacle to effective pharmacological treatments for
patients with cluster headaches - CORRECT ANSWER✔✔- cigarette smoking
subdural hematomas most commonly result from what? - CORRECT ANSWER✔✔- venous
bleeding from the tearing of briding veins
how is the diagnosis of DAI confirmed - CORRECT ANSWER✔✔- clinical diagnosis,
definitively dx requires microscopice examination of the brain tissue.
what are classic signs of autonomic dysfunction syndrome and what's the most common
intervention - CORRECT ANSWER✔✔- hypertension, tachycardia, tachypnea, and fever---
iv morphine
,what is the MOST common source of infection leading to brain abcesses? - CORRECT
ANSWER✔✔- hematogenous spread from distant infected sites, such as PNA, lung abscess,
or bacterial endocarditis
what group of people have the greatest risk of ICH? - CORRECT ANSWER✔✔- patients
with unruptured intracerebral AVM's
what is the most important diagnostic test for the pt having a dull headache, superimposed ice
pick sensations on the scalp, jaw claudication, and elevated ESR? - CORRECT
ANSWER✔✔- temporal artery biopsy--r/o giant cell arteritis
what is a potential complication of a CSF leak in basal skull fx's? - CORRECT
ANSWER✔✔- the trapping of portions of the frontal meninges b/w the fx edges with a
persistent CSF leak requiring surgical intervention
what is the best way to accomplish external draining of CSF via an EVD? - CORRECT
ANSWER✔✔- drain a few drops/minute and close the drain after 5min or less
what is the Tinel's sign - CORRECT ANSWER✔✔- most frequently associated with carpel
tunnel, gently tap or percuss over the injured nerve to elicit a sensation of tingling or "pins
and needles" in the nerve distribution area.
what is the Phalen's sign? - CORRECT ANSWER✔✔- maneuver to diagnose carpel tunnel--
hands forced dorsal sides together and wrists flexed to 90deg; positive test causes burning,
tingling, or numb sensation over the thumb, index, middle and ring fingers.
what is the most common cause of Erb's palsy? - CORRECT ANSWER✔✔- dystocia or
abnormal or difficult childbirth or labor
what are the most common sign's of erb's palsy? - CORRECT ANSWER✔✔- loss of
sensation in the arm and paralysis and atrophy of the deltoid, biceps, and brachialis muscles.
, how is the management of the GI system in a SCI pt intiated in the ED? - CORRECT
ANSWER✔✔- by inserting a NGT d/t the high risk of gastric immotility resulting in
distention and an ileus.
what is the most common cause of a radial nerve injury - CORRECT ANSWER✔✔-
humerus fracture
best treatment options for a woman in 3rd trimester of pregnancy with + Tinel's and Phalen's
sign is what? - CORRECT ANSWER✔✔- wrist splints and rehab modalities
best way to prevent the development of peroneal nerve palsy in a recently immobilized pt is
what? - CORRECT ANSWER✔✔- avoiding pressure to the back of the knees during period
when pt is immobilized
in a recently immbolized pt, they begin to complain of burning on the top of the foot and
have unilateral foot drop. what is this - CORRECT ANSWER✔✔- peroneal nerve palsy
what is the major difference b/w subdural hematoma and subdural hygroma - CORRECT
ANSWER✔✔- subdural hematoma is blood, and subdural hygroma is CSF
ideal treatment for low serum Na level is what? - CORRECT ANSWER✔✔- slow
normalization w/ 3% saline and lasix to prevent central pontine myelinolysis
what is a common alternative approach to preventing the s/s of carpel tunnel syndrome? -
CORRECT ANSWER✔✔- yoga
pain upon straight leg raising
in a multi trauma patient may indicate what? - CORRECT ANSWER✔✔- herniated nucleus
pulposus
severe sharp pain with passive hip flexion may indicated what? - CORRECT ANSWER✔✔-
hip fracture
Questions and CORRECT Answers
specific condition of small vessels that can lead to lacunar strokes - CORRECT
ANSWER✔✔- lipohyalinosis
what is the greatest risk factor for lacunar strokes - CORRECT ANSWER✔✔- hypertension
tiny areas of ischemic necrosis caused by occlusion of small penetrating arteries - CORRECT
ANSWER✔✔- lacunar strokes
what percentage of ischemic strokes do lacunar strokes account for - CORRECT
ANSWER✔✔- 25%
what are the 5 classic syndromes of lacunar strokes - CORRECT ANSWER✔✔- pure motor
hemiparesis, ataxic hemiparesis, dysarthria/clumsy hand syndrome, pure sensory stroke, and
mixed sensorimotor stroke
what is the only non-pain sensitive tissue in the head/brain - CORRECT ANSWER✔✔-
brain parenchyma
what is the biggest insurmountable obstacle to effective pharmacological treatments for
patients with cluster headaches - CORRECT ANSWER✔✔- cigarette smoking
subdural hematomas most commonly result from what? - CORRECT ANSWER✔✔- venous
bleeding from the tearing of briding veins
how is the diagnosis of DAI confirmed - CORRECT ANSWER✔✔- clinical diagnosis,
definitively dx requires microscopice examination of the brain tissue.
what are classic signs of autonomic dysfunction syndrome and what's the most common
intervention - CORRECT ANSWER✔✔- hypertension, tachycardia, tachypnea, and fever---
iv morphine
,what is the MOST common source of infection leading to brain abcesses? - CORRECT
ANSWER✔✔- hematogenous spread from distant infected sites, such as PNA, lung abscess,
or bacterial endocarditis
what group of people have the greatest risk of ICH? - CORRECT ANSWER✔✔- patients
with unruptured intracerebral AVM's
what is the most important diagnostic test for the pt having a dull headache, superimposed ice
pick sensations on the scalp, jaw claudication, and elevated ESR? - CORRECT
ANSWER✔✔- temporal artery biopsy--r/o giant cell arteritis
what is a potential complication of a CSF leak in basal skull fx's? - CORRECT
ANSWER✔✔- the trapping of portions of the frontal meninges b/w the fx edges with a
persistent CSF leak requiring surgical intervention
what is the best way to accomplish external draining of CSF via an EVD? - CORRECT
ANSWER✔✔- drain a few drops/minute and close the drain after 5min or less
what is the Tinel's sign - CORRECT ANSWER✔✔- most frequently associated with carpel
tunnel, gently tap or percuss over the injured nerve to elicit a sensation of tingling or "pins
and needles" in the nerve distribution area.
what is the Phalen's sign? - CORRECT ANSWER✔✔- maneuver to diagnose carpel tunnel--
hands forced dorsal sides together and wrists flexed to 90deg; positive test causes burning,
tingling, or numb sensation over the thumb, index, middle and ring fingers.
what is the most common cause of Erb's palsy? - CORRECT ANSWER✔✔- dystocia or
abnormal or difficult childbirth or labor
what are the most common sign's of erb's palsy? - CORRECT ANSWER✔✔- loss of
sensation in the arm and paralysis and atrophy of the deltoid, biceps, and brachialis muscles.
, how is the management of the GI system in a SCI pt intiated in the ED? - CORRECT
ANSWER✔✔- by inserting a NGT d/t the high risk of gastric immotility resulting in
distention and an ileus.
what is the most common cause of a radial nerve injury - CORRECT ANSWER✔✔-
humerus fracture
best treatment options for a woman in 3rd trimester of pregnancy with + Tinel's and Phalen's
sign is what? - CORRECT ANSWER✔✔- wrist splints and rehab modalities
best way to prevent the development of peroneal nerve palsy in a recently immobilized pt is
what? - CORRECT ANSWER✔✔- avoiding pressure to the back of the knees during period
when pt is immobilized
in a recently immbolized pt, they begin to complain of burning on the top of the foot and
have unilateral foot drop. what is this - CORRECT ANSWER✔✔- peroneal nerve palsy
what is the major difference b/w subdural hematoma and subdural hygroma - CORRECT
ANSWER✔✔- subdural hematoma is blood, and subdural hygroma is CSF
ideal treatment for low serum Na level is what? - CORRECT ANSWER✔✔- slow
normalization w/ 3% saline and lasix to prevent central pontine myelinolysis
what is a common alternative approach to preventing the s/s of carpel tunnel syndrome? -
CORRECT ANSWER✔✔- yoga
pain upon straight leg raising
in a multi trauma patient may indicate what? - CORRECT ANSWER✔✔- herniated nucleus
pulposus
severe sharp pain with passive hip flexion may indicated what? - CORRECT ANSWER✔✔-
hip fracture
