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This comprehensive set of 300 unique, multiple-choice questions is designed
for PALS (Pediatric Advanced Life Support) certification preparation. It
covers all core domains including pediatric cardiac arrest algorithms (VF,
pVT, asystole, PEA), respiratory emergencies (asthma, croup, bronchiolitis,
epiglottitis, foreign body aspiration), shock states (septic, hypovolemic,
cardiogenic, obstructive, anaphylactic), and reversible causes (H's and T's).
Medication dosing and indications for epinephrine, amiodarone, adenosine,
atropine, and lidocaine are systematically tested. Defibrillation and
synchronized cardioversion energy doses, CPR ratios, airway management,
and post-resuscitation care are also thoroughly addressed, ensuring
comprehensive exam readiness.
1. A child in cardiac arrest experiences return of spontaneous circulation but is
exhibiting signs of post-cardiac arrest syndrome (PCAS). The PALS resuscitation
team determines that the child is experiencing a systemic response to
ischemia/reperfusion. The team bases this determination on which finding(s)?
A) Hypotension only
B) Fever only
C) Hypotension, Fever, Hyperglycemia
D) Hypertension, Hypothermia, Hypoglycemia
Correct Answer: C
Rationale: Post-cardiac arrest syndrome involves a systemic inflammatory
response triggered by ischemia and reperfusion. Key manifestations include
hypotension, fever, and hyperglycemia, which require comprehensive post-arrest
management .
2. A provider is assessing a child with suspected shock. Which statement correctly
describes hypotension and shock in the pediatric population?
A) Hypotension is always present in the early stages of shock
B) Hypotension is not a consistent feature of shock
C) Hypotension is the first sign of compensated shock
,D) Hypotension only occurs in septic shock
Correct Answer: B
Rationale: Hypotension is a late finding in pediatric shock and is not consistently
present, especially in early or compensated shock. Children maintain blood
pressure through compensatory mechanisms despite significant volume loss .
3. A 4-year-old child in the urgent care clinic has difficulty breathing and an
oxygen saturation of 91%. The provider administers oxygen by nasal cannula with
the goal of improving the child's oxygen saturation above what percentage?
A) 88%
B) 90%
C) 94%
D) 98%
Correct Answer: C
Rationale: Supplemental oxygen should be administered to maintain oxygen
saturation above 94% in children with respiratory distress. This ensures adequate
tissue oxygenation while avoiding potential harm from excessive oxygen
administration .
4. What ratio of compressions to breaths should be used for 1-rescuer child CPR?
A) 30 compressions to 2 breaths
B) 15 compressions to 2 breaths
C) 100 to 120 compressions per minute with no breaths
D) 50 compressions to 1 breath
Correct Answer: A
Rationale: For single-rescuer CPR in children, the compression-to-ventilation ratio
is 30:2, consistent with adult CPR guidelines for lone rescuers .
5. You find an infant who is unresponsive, is not breathing, and does not have a
pulse. You shout for nearby help, but no one arrives. What action should you take
next?
A) Provide CPR for about 2 minutes before leaving to activate the emergency
response system
B) Provide CPR for 60 seconds before leaving to activate the emergency response
system
C) Activate the emergency response system after giving CPR for 10 minutes
D) Activate the emergency response system after giving CPR for 60 seconds
Correct Answer: A
,Rationale: For a lone rescuer with an unresponsive infant with no pulse, the current
guidelines recommend providing approximately 2 minutes of CPR before leaving
to activate the emergency response system .
6. What compression-to-ventilation ratio should be used for 2-rescuer infant CPR?
A) 5 compressions to 1 breath
B) 30 compressions to 2 breaths
C) 20 compressions to 2 breaths
D) 15 compressions to 2 breaths
Correct Answer: D
Rationale: For 2-rescuer infant CPR, the compression-to-ventilation ratio is 15:2,
allowing for more frequent ventilations with two providers .
7. Why is allowing complete chest recoil important when performing high-quality
CPR?
A) There will be a reduction in rescuer fatigue
B) It will reduce the risk of rib fractures
C) The heart will refill with blood between compressions
D) The rate of chest compressions will increase
Correct Answer: C
Rationale: Allowing complete chest recoil between compressions allows the heart
to refill with blood, maximizing cardiac output during CPR. Incomplete recoil
reduces venous return and compromises perfusion .
8. How can rescuers ensure that they are providing effective breaths when using a
bag-mask device?
A) By observing the chest rise with each breath
B) By delivering breaths quickly and forcefully
C) By always having oxygen attached to the bag
D) By allowing air to release around the mask
Correct Answer: A
Rationale: Visible chest rise with each breath is the primary indicator of effective
ventilation. Delivering breaths too quickly or forcefully can cause gastric inflation
and decrease ventilation effectiveness .
9. You are giving chest compressions for a child in cardiac arrest. What is the
proper depth of compressions for a child?
A) Compress the chest at least one third the depth of the chest, approximately 2
inches (5 cm)
, B) Compress the chest at least one fourth the depth of the chest, approximately 1.5
inches (4 cm)
C) Compress the chest at least two thirds the depth of the chest, approximately 4
inches (10 cm)
D) Compress the chest at least one half the depth of the chest, approximately 3
inches (8 cm)
Correct Answer: A
Rationale: For children, compressions should be at least one third the depth of the
chest, approximately 2 inches (5 cm). This depth ensures adequate blood flow
during CPR .
10. You and another rescuer begin CPR. Your colleague begins compressions, and
you notice that the compression rate is too slow. What should you say to offer
constructive feedback?
A) "You need to compress at a rate of 80 to 120 per minute."
B) "You need to compress at a rate of at least 120 per minute."
C) "You need to compress at a rate of 100 to 120 per minute."
D) "You need to compress at a rate of at least 100 per minute."
Correct Answer: C
Rationale: The recommended compression rate for high-quality CPR is 100 to 120
compressions per minute. Providing specific, guideline-based feedback supports
effective resuscitation .
11. During bag-mask ventilation, how should you hold the mask to make an
effective seal between the child's face and the mask?
A) Push the jaw forward by using a jaw-thrust maneuver
B) Use the 2 thumb-encircling hands technique
C) Position your fingers, using the bridge of the nose as a guide
D) Position your fingers using the E-C clamp technique
Correct Answer: D
Rationale: The E-C clamp technique provides an effective seal by using the thumb
and index finger to form a "C" over the mask while the remaining fingers lift the
jaw, forming an "E" .
12. You need to provide rescue breaths to a child victim with a pulse. What is the
appropriate rate for delivering breaths?
A) 1 breath every 2 to 3 seconds
B) 1 breath every 3 to 5 seconds
C) 2 breaths every 6 to 8 seconds
D) 1 breath every 6 seconds