Pediatric Emergencies And Acute Care

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USMLE Step 2 CK › Pediatric Emergencies And Acute Care

Questions 1 - 8
1

A 2-year-old girl has bruises in different stages on trunk and ears; caregiver history changes; child is quiet but stable. What is the most appropriate next step in the management of this patient?

Ensure safety, document findings, and report to child protective services

Discharge with routine follow-up since vitals are normal

Confront caregiver aggressively and obtain a confession immediately

Delay reporting until all imaging results are finalized

Prescribe antibiotics for presumed skin infection causing bruising

Explanation

This question tests the ability to manage pediatric emergencies and acute care situations, focusing on rapid identification and intervention. Pediatric emergencies require prompt recognition of symptoms and immediate management to stabilize the patient while minimizing harm. In this scenario, the child presents with bruises in different stages on trunk and ears, changing caregiver history, and is quiet but stable, indicating a need for abuse reporting. Choice A is correct because it aligns with guidelines for managing suspected child abuse, ensuring timely and effective care. Choice B is incorrect as it suggests discharging with routine follow-up since vitals are normal, which could worsen the child's condition or delay necessary treatment. To prepare for similar questions, students should familiarize themselves with pediatric emergency protocols, ensure understanding of age-specific presentations, and practice applying clinical guidelines in time-sensitive scenarios. Watch for: recognizing subtle signs of distress, avoiding assumptions based on adult protocols.

2

A 6-year-old has fever, headache, confusion, and petechiae; vitals show HR 150, BP 88/46, SpO$_2$ 95%. What is the most appropriate initial management for this child's condition?

Order EEG to evaluate for nonconvulsive seizure first

Observe until fever resolves and mental status normalizes

Give IV broad-spectrum antibiotics immediately after obtaining blood cultures

Perform lumbar puncture before giving any antibiotics

Start oral antivirals only and discharge with precautions

Explanation

This question tests the ability to manage pediatric emergencies and acute care situations, focusing on rapid identification and intervention. Pediatric emergencies require prompt recognition of symptoms and immediate management to stabilize the patient while minimizing harm. In this scenario, the child presents with fever, headache, confusion, petechiae, HR 150, BP 88/46, and SpO₂ 95%, indicating a need for empiric antibiotics. Choice A is correct because it aligns with guidelines for managing suspected meningococcemia, ensuring timely and effective care. Choice B is incorrect as it suggests performing lumbar puncture before giving any antibiotics, which could worsen the child's condition or delay necessary treatment. To prepare for similar questions, students should familiarize themselves with pediatric emergency protocols, ensure understanding of age-specific presentations, and practice applying clinical guidelines in time-sensitive scenarios. Watch for: recognizing subtle signs of distress, avoiding assumptions based on adult protocols.

3

A 10-year-old girl fell off a bicycle; she is pale, anxious, HR 150, BP 78/42, cool extremities, capillary refill 5 seconds. What is the most appropriate initial management for this child's condition?

Administer furosemide to prevent fluid overload

Order abdominal CT before giving any fluids

Give 20 mL/kg isotonic crystalloid bolus and reassess perfusion

Start maintenance IV fluids and monitor urine output

Give oral rehydration solution and observe

Explanation

This question tests the ability to manage pediatric emergencies and acute care situations, focusing on rapid identification and intervention. Pediatric emergencies require prompt recognition of symptoms and immediate management to stabilize the patient while minimizing harm. In this scenario, the child presents with pallor, anxiety, HR 150, BP 78/42, cool extremities, and capillary refill 5 seconds after falling off a bicycle, indicating a need for fluid resuscitation. Choice A is correct because it aligns with guidelines for managing hypovolemic shock, ensuring timely and effective care. Choice E is incorrect as it suggests administering furosemide to prevent fluid overload, which could worsen the child's condition or delay necessary treatment. To prepare for similar questions, students should familiarize themselves with pediatric emergency protocols, ensure understanding of age-specific presentations, and practice applying clinical guidelines in time-sensitive scenarios. Watch for: recognizing subtle signs of distress, avoiding assumptions based on adult protocols.

4

A 15-year-old with type 1 diabetes is confused and vomiting; glucose 520 mg/dL, pH 7.12, K 5.6. What is the most appropriate initial management for this child's condition?

Give hypotonic fluids first to correct dehydration more gently

Start insulin bolus without IV fluids to reduce glucose quickly

Start isotonic IV fluids, then insulin infusion after initial resuscitation

Give bicarbonate immediately to normalize pH

Order CT head before any treatment to exclude cerebral edema

Explanation

This question tests the ability to manage pediatric emergencies and acute care situations, focusing on rapid identification and intervention. Pediatric emergencies require prompt recognition of symptoms and immediate management to stabilize the patient while minimizing harm. In this scenario, the child presents with confusion, vomiting, glucose 520 mg/dL, pH 7.12, and K 5.6 in type 1 diabetes, indicating a need for fluid resuscitation followed by insulin. Choice A is correct because it aligns with guidelines for managing diabetic ketoacidosis, ensuring timely and effective care. Choice C is incorrect as it suggests starting insulin bolus without IV fluids to reduce glucose quickly, which could worsen the child's condition or delay necessary treatment. To prepare for similar questions, students should familiarize themselves with pediatric emergency protocols, ensure understanding of age-specific presentations, and practice applying clinical guidelines in time-sensitive scenarios. Watch for: recognizing subtle signs of distress, avoiding assumptions based on adult protocols.

5

A 3-year-old with suspected abuse is stable; you note patterned bruising and tenderness without obvious deformity. What is the most appropriate next step in the management of this patient?

Delay any evaluation until the child can provide a full history

Rely on caregiver photos and skip formal documentation

Obtain a skeletal survey and coordinate multidisciplinary child protection evaluation

Avoid imaging to limit radiation and send home with instructions

Order whole-body CT to screen for all possible injuries

Explanation

This question tests the ability to manage pediatric emergencies and acute care situations, focusing on rapid identification and intervention. Pediatric emergencies require prompt recognition of symptoms and immediate management to stabilize the patient while minimizing harm. In this scenario, the child presents with suspected abuse, stable condition, patterned bruising, and tenderness without obvious deformity, indicating a need for skeletal survey and evaluation. Choice A is correct because it aligns with guidelines for managing suspected child abuse, ensuring timely and effective care. Choice B is incorrect as it suggests avoiding imaging to limit radiation and sending home with instructions, which could worsen the child's condition or delay necessary treatment. To prepare for similar questions, students should familiarize themselves with pediatric emergency protocols, ensure understanding of age-specific presentations, and practice applying clinical guidelines in time-sensitive scenarios. Watch for: recognizing subtle signs of distress, avoiding assumptions based on adult protocols.

6

A 12-year-old with suspected hemorrhagic shock is receiving resuscitation; bedside FAST is positive for free fluid. What is the most appropriate next step in the management of this patient?

Discontinue resuscitation and prioritize CT with IV contrast

Give hypotonic fluids to correct possible hypernatremia

Consult surgery emergently and continue blood product resuscitation

Start broad-spectrum antibiotics for presumed appendicitis

Observe in ED until pain improves without further intervention

Explanation

This question tests the ability to manage pediatric emergencies and acute care situations, focusing on rapid identification and intervention. Pediatric emergencies require prompt recognition of symptoms and immediate management to stabilize the patient while minimizing harm. In this scenario, the child presents with suspected hemorrhagic shock and positive bedside FAST for free fluid during resuscitation, indicating a need for surgical consultation. Choice A is correct because it aligns with guidelines for managing abdominal trauma with instability, ensuring timely and effective care. Choice B is incorrect as it suggests discontinuing resuscitation and prioritizing CT with IV contrast, which could worsen the child's condition or delay necessary treatment. To prepare for similar questions, students should familiarize themselves with pediatric emergency protocols, ensure understanding of age-specific presentations, and practice applying clinical guidelines in time-sensitive scenarios. Watch for: recognizing subtle signs of distress, avoiding assumptions based on adult protocols.

7

A 2-year-old girl is suddenly lethargic and confused; fingerstick glucose is 38 mg/dL, no seizure activity. What is the most appropriate initial management for this child's condition?

Give IV dextrose bolus and recheck glucose within 15 minutes

Start broad-spectrum antibiotics and defer glucose correction

Order head CT before treating to exclude intracranial pathology

Give oral juice only and discharge if more alert

Administer naloxone and wait for clinical response

Explanation

This question tests the ability to manage pediatric emergencies and acute care situations, focusing on rapid identification and intervention. Pediatric emergencies require prompt recognition of symptoms and immediate management to stabilize the patient while minimizing harm. In this scenario, the child presents with sudden lethargy and confusion with fingerstick glucose 38 mg/dL and no seizure activity, indicating a need for glucose correction. Choice A is correct because it aligns with guidelines for managing hypoglycemia, ensuring timely and effective care. Choice B is incorrect as it suggests ordering head CT before treating to exclude intracranial pathology, which could worsen the child's condition or delay necessary treatment. To prepare for similar questions, students should familiarize themselves with pediatric emergency protocols, ensure understanding of age-specific presentations, and practice applying clinical guidelines in time-sensitive scenarios. Watch for: recognizing subtle signs of distress, avoiding assumptions based on adult protocols.

8

A 6-year-old with status epilepticus received two benzodiazepine doses; seizure continues, vitals stable, IV access present. What is the most appropriate next step in the management of this patient?

Discharge when seizure ends without further evaluation

Administer IV levetiracetam, fosphenytoin, or valproate as second-line therapy

Stop medications and attempt verbal reassurance until seizure stops

Start aspirin and heparin for presumed ischemic stroke

Give a third benzodiazepine dose every five minutes indefinitely

Explanation

This question tests the ability to manage pediatric emergencies and acute care situations, focusing on rapid identification and intervention. Pediatric emergencies require prompt recognition of symptoms and immediate management to stabilize the patient while minimizing harm. In this scenario, the child presents with status epilepticus continuing after two benzodiazepine doses, stable vitals, and IV access present, indicating a need for second-line anticonvulsant. Choice A is correct because it aligns with guidelines for managing refractory status epilepticus, ensuring timely and effective care. Choice B is incorrect as it suggests giving a third benzodiazepine dose every five minutes indefinitely, which could worsen the child's condition or delay necessary treatment. To prepare for similar questions, students should familiarize themselves with pediatric emergency protocols, ensure understanding of age-specific presentations, and practice applying clinical guidelines in time-sensitive scenarios. Watch for: recognizing subtle signs of distress, avoiding assumptions based on adult protocols.