Pediatric Emergency Medicine 2026/2027:
Respiratory Distress, Shock Management &
Arrhythmias | Full Practice Exam with
Answers
Description:
Master pediatric respiratory emergencies, shock recognition, and cardiac arrhythmias with
this comprehensive 2026/2027 examination paper. 150 questions with detailed answers covering
PALS-aligned protocols for upper/lower airway obstruction, distributive shock,
bradycardia, and bag-mask ventilation.
Download now to pass your pediatric emergency certification with confidence.
, PALS 2026/2027: Pediatric Respiratory & Shock Exam
Section 1: Respiratory Physiology and Assessment
Question 1
Conditions that ______ air resistance lead to increased respiratory ______.
A. Decrease / Rate
B. Increase / Effort
C. Reduce / Output
D. Eliminate / Failure
Answer: B
Explanation: Increased airway resistance requires greater work of breathing to maintain
adequate ventilation, leading to increased respiratory effort.
Question 2
What are the signs of increased respiratory effort that can lead to fatigue and respiratory failure?
Select all that apply.
A. Nasal flaring
B. Retractions
C. Head bobbing
D. Seesaw respirations
Answer: A, B, C, D
Explanation: Nasal flaring reduces airway resistance, retractions indicate high negative
intrathoracic pressure, head bobbing represents accessory muscle use in infants, and seesaw
respirations indicate diaphragmatic fatigue with impending respiratory failure.
,Question 3
Determine the respiratory rate by counting the number of times the chest rises in ______ seconds
and multiplying by ______.
A.
B.
C.
D.
Answer: B
Explanation: Counting chest rise over 30 seconds and multiplying by 2 provides an accurate
respiratory rate while allowing sufficient time to detect irregularities.
Question 4
Tachypnea is often the first sign of respiratory ______ in infants.
A. Arrest
B. Distress
C. Depression
D. Infection
Answer: B
Explanation: Infants compensate for respiratory compromise primarily by increasing respiratory
rate, making tachypnea an early compensatory mechanism before other signs appear.
Question 5
What do central chemoreceptors respond to?
A. Decreased arterial oxygen tension
B. Hydrogen ions in the cerebrospinal fluid
C. Increased carbon dioxide in venous blood
D. Changes in systemic blood pressure
Answer: B
, Explanation: Central chemoreceptors located in the medulla oblongata detect changes in
cerebrospinal fluid pH, primarily reflecting CO₂ levels through conversion to hydrogen ions.
Question 6
Why may excessive ventilation during CPR be harmful?
A. It causes hyperoxemia
B. It impedes venous return and increases intrathoracic pressure
C. It leads to metabolic alkalosis
D. It decreases cerebral oxygen demand
Answer: B
Explanation: Excessive ventilation increases intrathoracic pressure, which reduces preload by
impeding venous return to the heart, decreasing cardiac output and coronary perfusion pressure.
Question 7
What should you do if you cannot achieve effective ventilation with a bag-mask device? Select
all that apply.
A. Reposition the airway
B. Verify the mask size
C. Immediately intubate
D. Increase ventilation rate
Answer: A, B
Explanation: The initial response to ineffective bag-mask ventilation should focus on basic
troubleshooting: airway repositioning and mask size verification.
Question 8
How are effective oxygenation and ventilation assessed? Select all that apply.
A. Oxygen saturation
B. Exhaled carbon dioxide
C. Visible chest rise with each breath
D. Patient color change
Respiratory Distress, Shock Management &
Arrhythmias | Full Practice Exam with
Answers
Description:
Master pediatric respiratory emergencies, shock recognition, and cardiac arrhythmias with
this comprehensive 2026/2027 examination paper. 150 questions with detailed answers covering
PALS-aligned protocols for upper/lower airway obstruction, distributive shock,
bradycardia, and bag-mask ventilation.
Download now to pass your pediatric emergency certification with confidence.
, PALS 2026/2027: Pediatric Respiratory & Shock Exam
Section 1: Respiratory Physiology and Assessment
Question 1
Conditions that ______ air resistance lead to increased respiratory ______.
A. Decrease / Rate
B. Increase / Effort
C. Reduce / Output
D. Eliminate / Failure
Answer: B
Explanation: Increased airway resistance requires greater work of breathing to maintain
adequate ventilation, leading to increased respiratory effort.
Question 2
What are the signs of increased respiratory effort that can lead to fatigue and respiratory failure?
Select all that apply.
A. Nasal flaring
B. Retractions
C. Head bobbing
D. Seesaw respirations
Answer: A, B, C, D
Explanation: Nasal flaring reduces airway resistance, retractions indicate high negative
intrathoracic pressure, head bobbing represents accessory muscle use in infants, and seesaw
respirations indicate diaphragmatic fatigue with impending respiratory failure.
,Question 3
Determine the respiratory rate by counting the number of times the chest rises in ______ seconds
and multiplying by ______.
A.
B.
C.
D.
Answer: B
Explanation: Counting chest rise over 30 seconds and multiplying by 2 provides an accurate
respiratory rate while allowing sufficient time to detect irregularities.
Question 4
Tachypnea is often the first sign of respiratory ______ in infants.
A. Arrest
B. Distress
C. Depression
D. Infection
Answer: B
Explanation: Infants compensate for respiratory compromise primarily by increasing respiratory
rate, making tachypnea an early compensatory mechanism before other signs appear.
Question 5
What do central chemoreceptors respond to?
A. Decreased arterial oxygen tension
B. Hydrogen ions in the cerebrospinal fluid
C. Increased carbon dioxide in venous blood
D. Changes in systemic blood pressure
Answer: B
, Explanation: Central chemoreceptors located in the medulla oblongata detect changes in
cerebrospinal fluid pH, primarily reflecting CO₂ levels through conversion to hydrogen ions.
Question 6
Why may excessive ventilation during CPR be harmful?
A. It causes hyperoxemia
B. It impedes venous return and increases intrathoracic pressure
C. It leads to metabolic alkalosis
D. It decreases cerebral oxygen demand
Answer: B
Explanation: Excessive ventilation increases intrathoracic pressure, which reduces preload by
impeding venous return to the heart, decreasing cardiac output and coronary perfusion pressure.
Question 7
What should you do if you cannot achieve effective ventilation with a bag-mask device? Select
all that apply.
A. Reposition the airway
B. Verify the mask size
C. Immediately intubate
D. Increase ventilation rate
Answer: A, B
Explanation: The initial response to ineffective bag-mask ventilation should focus on basic
troubleshooting: airway repositioning and mask size verification.
Question 8
How are effective oxygenation and ventilation assessed? Select all that apply.
A. Oxygen saturation
B. Exhaled carbon dioxide
C. Visible chest rise with each breath
D. Patient color change
