COMPREHENSIVE NURSING LICENSURE & CLINICAL
COMPETENCY EXAM
Pediatric Nursing: Comprehensive Assessment, Pathophysiology, and
Management of Reye's Syndrome & Related Conditions
(200 Clinical Practice Questions with In-Depth Rationales)
Module 1: Reye's Syndrome Core Pathophysiology & Etiology
1. A nurse is admitting a 2-year-old toddler with suspected Reye's
syndrome. Which of the following questions is most critical for the
nurse to ask the parents during the initial admission assessment?
A. 'Has your child received all recommended childhood
immunizations on schedule?'
B. 'Did you give your child aspirin or any medication containing
aspirin recently for a viral illness?'
C. 'Has the child had any recent exposure to individuals diagnosed
with bacterial meningitis?'
D. 'Does anyone in your immediate family have a history of genetic
metabolic liver disorders?'
Correct Answer: B
Rationale: Reye's syndrome is strongly associated with the
administration of aspirin (salicylates) or aspirin-containing
medications to children and adolescents during a preceding viral
infection (such as influenza or varicella). While family history and
immunizations are part of a thorough assessment, inquiring about
salicylate use directly targets the primary preventable etiology of
Reye's syndrome.
,2. Which specific laboratory finding is a hallmark indicator of
hepatic dysfunction and mitochondrial failure in a toddler with
Reye's syndrome?
A. Decreased serum creatinine and blood urea nitrogen (BUN)
B. Elevated serum transaminases (AST, ALT) and prolonged
prothrombin time (PT/INR)
C. Marked thrombocytopenia with normal white blood cell
differential
D. Decreased serum total bilirubin with elevated direct bilirubin
Correct Answer: B
Rationale: Reye's syndrome is characterized by acute non-
inflammatory encephalopathy and fatty liver failure. Hepatic
mitochondrial injury results in significant elevations in serum
aminotransferases (AST and ALT) and ammonia levels, along with
coagulopathy demonstrated by a prolonged prothrombin time
(PT/INR) due to impaired hepatic synthesis of clotting factors.
Bilirubin levels are typically normal or only minimally elevated.
3. A nurse is reviewing the laboratory results of a 3-year-old
admitted with suspected Reye's syndrome. Which additional serum
laboratory value is expected to be significantly elevated and directly
correlates with cerebral edema and encephalopathy severity?
A. Serum ammonia
B. Serum amylase
C. Serum uric acid
D. Serum potassium
Correct Answer: A
Rationale: Hyperammonemia is a hallmark of Reye's syndrome
caused by mitochondrial enzyme dysfunction in the urea cycle within
the liver. Elevated serum ammonia levels are directly neurotoxic,
, leading to astrocyte swelling, increased intracranial pressure (ICP),
and worsening encephalopathy.
4. A toddler with Reye's syndrome is exhibiting persistent vomiting,
lethargy, and confusion. What pathophysiological mechanism
primarily drives the cerebral edema observed in these patients?
A. Vasogenic edema secondary to disruption of the blood-brain
barrier from localized bacterial infection
B. Cytotoxic edema resulting from cellular energy depletion and
ammonia-induced astrocyte swelling
C. Hydrocephalus caused by mechanical obstruction of the cerebral
aqueduct by cellular debris
D. Osmotic fluid shift due to acute hypernatremic dehydration from
severe gastroenteritis
Correct Answer: B
Rationale: The cerebral edema in Reye's syndrome is primarily
cytotoxic. Mitochondrial dysfunction impairs ATP production, failing
Na+/K+ pumps, while hyperammonemia causes glutamine
accumulation and osmotic swelling in astrocytes. The blood-brain
barrier generally remains intact initially, ruling out classic vasogenic
edema.
5. When performing a neurological assessment on a toddler in Stage
I Reye's syndrome, which clinical manifestation does the nurse
anticipate observing?
A. Deep coma, flaccid paralysis, and absent pupillary light reflexes
B. Lethargy, sleepiness, vomiting, and prompt response to verbal and
physical commands
C. Decorticate posturing, hyperventilation, and fixed pupils
D. Seizures, intermittent decerebrate posturing, and loss of corneal
reflexes
, Correct Answer: B
Rationale: Stage I Reye's syndrome is characterized by mild
neurological changes including lethargy, apathy, sleepiness, copious
vomiting, and lethargic but appropriate response to commands.
Advanced stages (IV-V) involve deep coma, decerebrate/decorticating
posturing, loss of brainstem reflexes, and respiratory arrest.
6. A pediatric nurse is caring for a toddler diagnosed with Reye's
syndrome. In relation to family support and education, which
nursing action or clinical principle is most appropriate?
A. Focus exclusively on educating parents on checking over-the-
counter cold and flu medications for hidden salicylates
(acetylsalicylic acid, bismuth subsalicylate) while withholding all
neurological checks.
B. Implement evidence-based protocols focusing on educating parents
on checking over-the-counter cold and flu medications for hidden
salicylates (acetylsalicylic acid, bismuth subsalicylate) to prevent
secondary brain injury.
C. Delay intervention for educating parents on checking over-the-
counter cold and flu medications for hidden salicylates
(acetylsalicylic acid, bismuth subsalicylate) until definitive liver
biopsy results are finalized.
D. Administer routine prophylactic antibiotics regardless of cultures
to address educating parents on checking over-the-counter cold and
flu medications for hidden salicylates (acetylsalicylic acid, bismuth
subsalicylate).
Correct Answer: B
Rationale: In pediatric patients with Reye's syndrome, prompt
attention to family support and education—specifically educating
parents on checking over-the-counter cold and flu medications for
COMPETENCY EXAM
Pediatric Nursing: Comprehensive Assessment, Pathophysiology, and
Management of Reye's Syndrome & Related Conditions
(200 Clinical Practice Questions with In-Depth Rationales)
Module 1: Reye's Syndrome Core Pathophysiology & Etiology
1. A nurse is admitting a 2-year-old toddler with suspected Reye's
syndrome. Which of the following questions is most critical for the
nurse to ask the parents during the initial admission assessment?
A. 'Has your child received all recommended childhood
immunizations on schedule?'
B. 'Did you give your child aspirin or any medication containing
aspirin recently for a viral illness?'
C. 'Has the child had any recent exposure to individuals diagnosed
with bacterial meningitis?'
D. 'Does anyone in your immediate family have a history of genetic
metabolic liver disorders?'
Correct Answer: B
Rationale: Reye's syndrome is strongly associated with the
administration of aspirin (salicylates) or aspirin-containing
medications to children and adolescents during a preceding viral
infection (such as influenza or varicella). While family history and
immunizations are part of a thorough assessment, inquiring about
salicylate use directly targets the primary preventable etiology of
Reye's syndrome.
,2. Which specific laboratory finding is a hallmark indicator of
hepatic dysfunction and mitochondrial failure in a toddler with
Reye's syndrome?
A. Decreased serum creatinine and blood urea nitrogen (BUN)
B. Elevated serum transaminases (AST, ALT) and prolonged
prothrombin time (PT/INR)
C. Marked thrombocytopenia with normal white blood cell
differential
D. Decreased serum total bilirubin with elevated direct bilirubin
Correct Answer: B
Rationale: Reye's syndrome is characterized by acute non-
inflammatory encephalopathy and fatty liver failure. Hepatic
mitochondrial injury results in significant elevations in serum
aminotransferases (AST and ALT) and ammonia levels, along with
coagulopathy demonstrated by a prolonged prothrombin time
(PT/INR) due to impaired hepatic synthesis of clotting factors.
Bilirubin levels are typically normal or only minimally elevated.
3. A nurse is reviewing the laboratory results of a 3-year-old
admitted with suspected Reye's syndrome. Which additional serum
laboratory value is expected to be significantly elevated and directly
correlates with cerebral edema and encephalopathy severity?
A. Serum ammonia
B. Serum amylase
C. Serum uric acid
D. Serum potassium
Correct Answer: A
Rationale: Hyperammonemia is a hallmark of Reye's syndrome
caused by mitochondrial enzyme dysfunction in the urea cycle within
the liver. Elevated serum ammonia levels are directly neurotoxic,
, leading to astrocyte swelling, increased intracranial pressure (ICP),
and worsening encephalopathy.
4. A toddler with Reye's syndrome is exhibiting persistent vomiting,
lethargy, and confusion. What pathophysiological mechanism
primarily drives the cerebral edema observed in these patients?
A. Vasogenic edema secondary to disruption of the blood-brain
barrier from localized bacterial infection
B. Cytotoxic edema resulting from cellular energy depletion and
ammonia-induced astrocyte swelling
C. Hydrocephalus caused by mechanical obstruction of the cerebral
aqueduct by cellular debris
D. Osmotic fluid shift due to acute hypernatremic dehydration from
severe gastroenteritis
Correct Answer: B
Rationale: The cerebral edema in Reye's syndrome is primarily
cytotoxic. Mitochondrial dysfunction impairs ATP production, failing
Na+/K+ pumps, while hyperammonemia causes glutamine
accumulation and osmotic swelling in astrocytes. The blood-brain
barrier generally remains intact initially, ruling out classic vasogenic
edema.
5. When performing a neurological assessment on a toddler in Stage
I Reye's syndrome, which clinical manifestation does the nurse
anticipate observing?
A. Deep coma, flaccid paralysis, and absent pupillary light reflexes
B. Lethargy, sleepiness, vomiting, and prompt response to verbal and
physical commands
C. Decorticate posturing, hyperventilation, and fixed pupils
D. Seizures, intermittent decerebrate posturing, and loss of corneal
reflexes
, Correct Answer: B
Rationale: Stage I Reye's syndrome is characterized by mild
neurological changes including lethargy, apathy, sleepiness, copious
vomiting, and lethargic but appropriate response to commands.
Advanced stages (IV-V) involve deep coma, decerebrate/decorticating
posturing, loss of brainstem reflexes, and respiratory arrest.
6. A pediatric nurse is caring for a toddler diagnosed with Reye's
syndrome. In relation to family support and education, which
nursing action or clinical principle is most appropriate?
A. Focus exclusively on educating parents on checking over-the-
counter cold and flu medications for hidden salicylates
(acetylsalicylic acid, bismuth subsalicylate) while withholding all
neurological checks.
B. Implement evidence-based protocols focusing on educating parents
on checking over-the-counter cold and flu medications for hidden
salicylates (acetylsalicylic acid, bismuth subsalicylate) to prevent
secondary brain injury.
C. Delay intervention for educating parents on checking over-the-
counter cold and flu medications for hidden salicylates
(acetylsalicylic acid, bismuth subsalicylate) until definitive liver
biopsy results are finalized.
D. Administer routine prophylactic antibiotics regardless of cultures
to address educating parents on checking over-the-counter cold and
flu medications for hidden salicylates (acetylsalicylic acid, bismuth
subsalicylate).
Correct Answer: B
Rationale: In pediatric patients with Reye's syndrome, prompt
attention to family support and education—specifically educating
parents on checking over-the-counter cold and flu medications for
