HEMISPHERE 3.0 LEVEL 6 EXAM ACTUAL EXAM 2026 | ALL QUESTIONS AND CORRECT
ANSWERS | VERIFIED ANSWERS | BRAND NEW VERSION!
Question 31
Which of the following formulas is used to calculate Cerebral Perfusion Pressure (CPP), a vital
metric in neurocritical care?
A) CPP = SBP - DBP
B) CPP = MAP + ICP
C) CPP = MAP - ICP
D) CPP = (SBP + 2DBP) / 3
E) CPP = ICP - MAP
Correct Answer: C) CPP = MAP - ICP
Rationale: Cerebral Perfusion Pressure is the net pressure gradient causing blood flow to
the brain. It is calculated by subtracting the resistance (Intracranial Pressure) from the
supply (Mean Arterial Pressure). In patients with brain injury, maintaining an adequate
CPP (typically 60–70 mmHg) is crucial to prevent secondary ischemic injury.
Question 32
When is the risk of rebleeding at its highest for a patient with an unsecured ruptured cerebral
aneurysm?
A) 4 to 14 days after the initial bleed
B) Within the first 24 hours
C) Exactly 48 hours after arrival
D) Between 21 and 30 days
E) Only after the patient starts Nimodipine
Correct Answer: B) Within the first 24 hours
Rationale: Rebleeding is the most dreaded early complication of subarachnoid hemorrhage.
The risk is maximal in the first 2 to 24 hours (approximately 4–13%). This is why securing
the aneurysm via coiling or clipping as soon as possible is the primary goal of the initial
management phase.
Question 33
Regarding "Triple-H" therapy (Hypertension, Hypervolemia, Hemodilution), what is the current
evidence-based consensus for managing vasospasm in subarachnoid hemorrhage?
A) All three components are equally important.
B) Hypervolemia and hemodilution are the primary drivers of success.
C) Induced hypertension is the most effective component; prophylactic hypervolemia is
generally avoided.
D) Triple-H therapy has been replaced entirely by low-dose aspirin.
E) Only hemodilution is recommended to reduce blood viscosity.
Correct Answer: C) Induced hypertension is the most effective component; prophylactic
hypervolemia is generally avoided.
Rationale: Modern neurocritical care emphasizes "euvolemic hypertension." While
, 2
hypertension is used to drive blood through narrowed vessels (vasospasm), aggressive
hypervolemia has been found to increase the risk of systemic complications like pulmonary
edema and hyponatremia without significantly improving cerebral outcomes.
Question 34
Which of the following is true regarding the use of prophylactic anti-seizure medications in
patients with spontaneous intracerebral hemorrhage (ICH)?
A) They should be given to all patients for 30 days.
B) They are recommended only if the patient has a clinical seizure or EEG evidence of seizures.
C) They should only be used in patients with deep subcortical bleeds.
D) They are mandatory for at least 6 months after the event.
E) Phenytoin is the preferred drug of choice for all pediatric patients.
Correct Answer: B) They are recommended only if the patient has a clinical seizure or EEG
evidence of seizures.
Rationale: Prophylactic anti-seizure medication (giving medicine before a seizure occurs) is
not routinely recommended for ICH patients. Studies have shown it does not improve long-
term outcomes and may be associated with side effects. Medication should be reserved for
those who demonstrate actual seizure activity.
Question 35
A patient on Warfarin presents with an acute intracranial hemorrhage and an INR of 4.5. Which
treatment provides the fastest reversal of the anticoagulation effect?
A) Fresh Frozen Plasma (FFP)
B) Intravenous Vitamin K
C) 4-Factor Prothrombin Complex Concentrate (PCC)
D) High-dose Aspirin
E) Protamine Sulfate
Correct Answer: C) 4-Factor Prothrombin Complex Concentrate (PCC)
Rationale: While Vitamin K is necessary for long-term reversal, it takes hours to work. FFP
requires large volumes and time to thaw/crossmatch. PCC (e.g., Kcentra) contains
concentrated clotting factors and can be administered rapidly in a small volume, achieving
near-instant correction of the INR in an emergency.
Question 36
In the Glasgow Coma Scale (GCS), which three categories of responses are assessed to
determine the level of consciousness?
A) Eye opening, Motor response, and Pupil size
B) Verbal response, Motor response, and Reflexes
C) Eye opening, Verbal response, and Motor response
D) Respiratory rate, Heart rate, and Blood pressure
E) Orientation, Memory, and Judgment
, 3
Correct Answer: C) Eye opening, Verbal response, and Motor response
Rationale: The GCS is the most widely used scoring system for assessing consciousness. It
evaluates the best response in three areas: Eye opening (1–4), Verbal response (1–5), and
Motor response (1–6). The total score ranges from 3 (deep coma) to 15 (fully awake).
Question 37
Intraventricular Hemorrhage (IVH) often accompanies ICH. What is the primary life-threatening
risk associated with blood entering the ventricular system?
A) Ischemic stroke
B) Acute obstructive hydrocephalus
C) Development of a brain tumor
D) Permanent blindness
E) Loss of the sense of smell
Correct Answer: B) Acute obstructive hydrocephalus
Rationale: Blood clots in the ventricles can block the narrow passages of CSF flow (such as
the Aqueduct of Sylvius). This leads to a rapid buildup of pressure (hydrocephalus), which
can cause brain herniation and death if not treated immediately with an EVD.
Question 38
During a lumbar puncture, the presence of xanthochromia in the cerebrospinal fluid is a hallmark
finding of which condition?
A) Bacterial meningitis
B) Multiple sclerosis
C) Subarachnoid hemorrhage
D) Brain abscess
E) Guillain-Barré syndrome
Correct Answer: C) Subarachnoid hemorrhage
Rationale: Xanthochromia is a yellowish appearance of the CSF caused by the breakdown
of red blood cells (hemoglobin to bilirubin). In the setting of a suspected subarachnoid
hemorrhage where the CT scan is negative, xanthochromia confirms that blood has been
present in the subarachnoid space for several hours.
Question 39
Which of the following distinguishes Cerebral Salt Wasting (CSW) from SIADH in a
neurocritical care patient?
A) SIADH involves high urine output; CSW involves low urine output.
B) CSW involves true hypovolemia and fluid depletion; SIADH is usually euvolemic or
hypervolemic.
C) Sodium is high in SIADH and low in CSW.
D) CSW is treated with fluid restriction.
E) SIADH is always caused by a brain tumor.
ANSWERS | VERIFIED ANSWERS | BRAND NEW VERSION!
Question 31
Which of the following formulas is used to calculate Cerebral Perfusion Pressure (CPP), a vital
metric in neurocritical care?
A) CPP = SBP - DBP
B) CPP = MAP + ICP
C) CPP = MAP - ICP
D) CPP = (SBP + 2DBP) / 3
E) CPP = ICP - MAP
Correct Answer: C) CPP = MAP - ICP
Rationale: Cerebral Perfusion Pressure is the net pressure gradient causing blood flow to
the brain. It is calculated by subtracting the resistance (Intracranial Pressure) from the
supply (Mean Arterial Pressure). In patients with brain injury, maintaining an adequate
CPP (typically 60–70 mmHg) is crucial to prevent secondary ischemic injury.
Question 32
When is the risk of rebleeding at its highest for a patient with an unsecured ruptured cerebral
aneurysm?
A) 4 to 14 days after the initial bleed
B) Within the first 24 hours
C) Exactly 48 hours after arrival
D) Between 21 and 30 days
E) Only after the patient starts Nimodipine
Correct Answer: B) Within the first 24 hours
Rationale: Rebleeding is the most dreaded early complication of subarachnoid hemorrhage.
The risk is maximal in the first 2 to 24 hours (approximately 4–13%). This is why securing
the aneurysm via coiling or clipping as soon as possible is the primary goal of the initial
management phase.
Question 33
Regarding "Triple-H" therapy (Hypertension, Hypervolemia, Hemodilution), what is the current
evidence-based consensus for managing vasospasm in subarachnoid hemorrhage?
A) All three components are equally important.
B) Hypervolemia and hemodilution are the primary drivers of success.
C) Induced hypertension is the most effective component; prophylactic hypervolemia is
generally avoided.
D) Triple-H therapy has been replaced entirely by low-dose aspirin.
E) Only hemodilution is recommended to reduce blood viscosity.
Correct Answer: C) Induced hypertension is the most effective component; prophylactic
hypervolemia is generally avoided.
Rationale: Modern neurocritical care emphasizes "euvolemic hypertension." While
, 2
hypertension is used to drive blood through narrowed vessels (vasospasm), aggressive
hypervolemia has been found to increase the risk of systemic complications like pulmonary
edema and hyponatremia without significantly improving cerebral outcomes.
Question 34
Which of the following is true regarding the use of prophylactic anti-seizure medications in
patients with spontaneous intracerebral hemorrhage (ICH)?
A) They should be given to all patients for 30 days.
B) They are recommended only if the patient has a clinical seizure or EEG evidence of seizures.
C) They should only be used in patients with deep subcortical bleeds.
D) They are mandatory for at least 6 months after the event.
E) Phenytoin is the preferred drug of choice for all pediatric patients.
Correct Answer: B) They are recommended only if the patient has a clinical seizure or EEG
evidence of seizures.
Rationale: Prophylactic anti-seizure medication (giving medicine before a seizure occurs) is
not routinely recommended for ICH patients. Studies have shown it does not improve long-
term outcomes and may be associated with side effects. Medication should be reserved for
those who demonstrate actual seizure activity.
Question 35
A patient on Warfarin presents with an acute intracranial hemorrhage and an INR of 4.5. Which
treatment provides the fastest reversal of the anticoagulation effect?
A) Fresh Frozen Plasma (FFP)
B) Intravenous Vitamin K
C) 4-Factor Prothrombin Complex Concentrate (PCC)
D) High-dose Aspirin
E) Protamine Sulfate
Correct Answer: C) 4-Factor Prothrombin Complex Concentrate (PCC)
Rationale: While Vitamin K is necessary for long-term reversal, it takes hours to work. FFP
requires large volumes and time to thaw/crossmatch. PCC (e.g., Kcentra) contains
concentrated clotting factors and can be administered rapidly in a small volume, achieving
near-instant correction of the INR in an emergency.
Question 36
In the Glasgow Coma Scale (GCS), which three categories of responses are assessed to
determine the level of consciousness?
A) Eye opening, Motor response, and Pupil size
B) Verbal response, Motor response, and Reflexes
C) Eye opening, Verbal response, and Motor response
D) Respiratory rate, Heart rate, and Blood pressure
E) Orientation, Memory, and Judgment
, 3
Correct Answer: C) Eye opening, Verbal response, and Motor response
Rationale: The GCS is the most widely used scoring system for assessing consciousness. It
evaluates the best response in three areas: Eye opening (1–4), Verbal response (1–5), and
Motor response (1–6). The total score ranges from 3 (deep coma) to 15 (fully awake).
Question 37
Intraventricular Hemorrhage (IVH) often accompanies ICH. What is the primary life-threatening
risk associated with blood entering the ventricular system?
A) Ischemic stroke
B) Acute obstructive hydrocephalus
C) Development of a brain tumor
D) Permanent blindness
E) Loss of the sense of smell
Correct Answer: B) Acute obstructive hydrocephalus
Rationale: Blood clots in the ventricles can block the narrow passages of CSF flow (such as
the Aqueduct of Sylvius). This leads to a rapid buildup of pressure (hydrocephalus), which
can cause brain herniation and death if not treated immediately with an EVD.
Question 38
During a lumbar puncture, the presence of xanthochromia in the cerebrospinal fluid is a hallmark
finding of which condition?
A) Bacterial meningitis
B) Multiple sclerosis
C) Subarachnoid hemorrhage
D) Brain abscess
E) Guillain-Barré syndrome
Correct Answer: C) Subarachnoid hemorrhage
Rationale: Xanthochromia is a yellowish appearance of the CSF caused by the breakdown
of red blood cells (hemoglobin to bilirubin). In the setting of a suspected subarachnoid
hemorrhage where the CT scan is negative, xanthochromia confirms that blood has been
present in the subarachnoid space for several hours.
Question 39
Which of the following distinguishes Cerebral Salt Wasting (CSW) from SIADH in a
neurocritical care patient?
A) SIADH involves high urine output; CSW involves low urine output.
B) CSW involves true hypovolemia and fluid depletion; SIADH is usually euvolemic or
hypervolemic.
C) Sodium is high in SIADH and low in CSW.
D) CSW is treated with fluid restriction.
E) SIADH is always caused by a brain tumor.
