PALS-Pretest Questions and Answers
Graded A
Sinus tachycardia
Sinus bradycardia
Supraventricular tachycardia
Asystole
Wide-complex tachycardia
Ventricular fibrillation with successful defibrillation and resumption
...
PALS-Pretest Questions and Answers
Graded A
Sinus tachycardia
Sinus bradycardia
Supraventricular tachycardia
Asystole
Wide-complex tachycardia
Ventricular fibrillation with successful defibrillation and resumption of organized rhythm
Sinus bradycardia
Pulseless electrical activity
Torsades de pointes
Ventricular fibrillation
Wide-complex tachycardia
SVT converting to sinus rhythm after adenosine administration
Normal sinus
In asystole, what is the effect of epi?
stimulate spontaneous contractions
Routine administration of calcium chloride (is/is not) indicated in pediatric patients during
cardiac arrest
is not
A 9-year-old boy is agitated and leaning forward on the bed in obvious respiratory distress. The
patient is speaking in short phrases and tells you that he has asthma but does not carry an inhaler.
He has nasal flaring, severe suprasternal and intercostal retractions, and decreased air movement
with prolonged expiratory time and wheezing. You administer 100% oxygen by a nonrebreathing
mask. His SpO2 is 92%. What medication do you prepare to give to this patient?
albuterol
You are part of a team attempting to resuscitate a child with vfib cardiac arrest. You delivered 2
unsynchronized shocks. A team member established IO access, so you give a dose of epi,
0.01mg/kg IO. At the next rhythm check, persistent vfib is present. You administer a 4 J/kg
shock and resume CPR. What should be administered next?
amiodarone 5mg/kg IO
What oxygen delivery system most reliably delivers a high (≥90%) concentration of inspired
oxygen to a 7-year-old child?
nonrebreathing face mask
ET drug administration during resuscitative efforts for pediatric patients is the (least/most)
desirable route of administration.
least
You are called to help treat an infant with severe symptomatic bradycardia (HR 66 bpm)
associated with respiratory distress. The bradycardia persists despite establishment of an
effective airway, oxygenation, and ventilation. There is no heart block present. What is the 1st
drug you should administer?
epi
Paramedics are called to the home of a 1-year-old child. Their initial assessment reveals a child
who responds only to painful stimuli and has irregular breathing, faint central pulses, bruises
over the abdomen, abdominal distention, and cyanosis. Bag-mask ventilation with 100% oxygen
is initiated. The child's HR is 36 bpm. Peripheral pulses cannot be palpated, and central pulses
are barely palpable. The cardiac monitor shows sinus bradycardia. Two-rescuer CPR is started.
Upon arrival to the ED, the child is intubated and ventilated with 100% oxygen, and IV access is
established. The HR is now 150 bpm with weak central pulses but no distal pulses. SBP is 74
mmHg. What intervention should be provided next?
rapid bolus of 20mL/kg of isotonic crystalloid
A previously healthy infant with a history of vomiting and diarrhea is brought to the ED by her
parents. During your assessment, you find that the infant only responds to painful stimulation.
The infant's RR is 40 bpm, and central pulses are rapid and weak. The infant has good bilateral
breath sounds, cool extremities, and a capillary refill time of >5 sec. The infant's BP is 86/65
mmHg, and glucose is 30mg/dL. You administer 100% oxygen via face mask and start in IV.
What is the most appropriate treatment?
bolus of isotonic crystalloid 20mL/kg over 5-20 min and D25W 2-4mL/kg IV
Initial impression of a 2-year-old girl shows her to be alert with mild breathing difficulty during
inspiration and pale skin color. On primary assessment, she makes high-pitched inspiratory
sounds (mild stridor) when agitated; otherwise, her breathing is quiet. Her SpO2 is 92% on room
air, and she has mild inspiratory intercostal retractions. Lung auscultation reveals transmitted
upper airway sounds with adequate distal breath sounds bilaterally. What is the most appropriate
initial intervention for this child?
humidified oxygen as tolerated
You are caring for a 3-year-old with vomiting and diarrhea. You have established IV access. The
child's pulses are palpable, but faint, and the child is now lethargic. The HR is variable (range:
44-62 bpm). You begin bag-mask ventilation with 100% oxygen. When the HR does not
improve, you begin chest compressions. The rhythm shown here is seen on the cardiac monitor.
What would be the most appropriate therapy to consider next?
transcutaneous pacing
A 4-year-old boy is in pulseless arrest in the pediatric ICU. High-quality CPR is in progress. You
quickly review his chart and find that this baseline-corrected QTI on a 12-lead EKG is
prolonged. The monitor shows recurrent episodes of the rhythm shown here. The has received 1
dose of epi 0.01mg/kg, but the rhythm shown here continues. If this rhythm persists at the next
rhythm check, what medication would be most appropriate to administer at that time?
MgSO4 25-50 mg/kg IV
You and another rescuer begin CPR. Your colleague begins compressions, and you notice that
the compression rate is too low. What should you say to offer constructive feedback?
'You need to compress at a rate of 100-120/min'
You are alone and witness a child suddenly collapse. There is no suspected head or neck injury.
A colleague responded to your shout for help and is activating the emergency response system
and is retrieving the resuscitation equipment, including a defibrillator. After delivering 30
compressions, what would be your next action?
one the airway with a head tilt-chin lift maneuver and give 2 breaths
An 18-month-old child has a 1-week history of cough and runny nose. The child has diffuse
cyanosis and is responsive only to painful stimulation with slow respirations and rapid central
pulses. The child's RR has decreased from 65 bpm to 10 bpm, severe inspiratory intercostal
retractions are present, HR is 160 bpm, SpO2 is 65% on room air, and capillary refill is <2secs.
What is the most appropriate immediate interventions for this toddler?
open the airway and provide positive-pressure ventilation using 100% oxygen and a bag-mask
device
A child becomes unresponsive in the ED and is not breathing. You are uncertain if a faint pulse
is present. You shout for help and provide ventilation with 100% oxygen. The rhythm shown
here is seen on the cardiac monitor. What is your next action?
start high-quality CPR
During bag-mask ventilation, how should you hold the mask to make an effective seal between
the child's face and mask?
position your fingers using the E-C clamp technique
How can rescuers ensure that they are providing effective breaths when using a bag-mask
device?
observing the chest rise with each breath
You just assisted with the elective ET intubation of a child with respiratory failure and a
perfusing rhythm. What method provides a reliable, prompt assessment of correct ET tube
placement in this child?
adequate bilateral breath sounds and chest expansion + detection of ETCO2 with waveform
capnopgraphy
What compression-to-ventilation ration should be used for 2-rescuer infant CPR?
15 compressions to 2 breaths
You find a 10-year-old boy to be unresponsive. You shout for help, and after finding that he is
not breathing and has no pulse, you and a colleague begin CPR. Another colleague activates the
emergency response system, brings the emergency equipment, and places the child on a cardiac
monitor/defibrillator, which reveals the rhythm shown here. You attempt defibrillation at 2 J/kg
and give 2 minutes of CPR. The rhythm persists at the second rhythm check, at which point you
attempt defibrillation with 4 J/kg. A 4th colleague arrives, starts an IV, and administers 1 dose of
epi 0.01mg/kg. If vfib or pulseless ventricular tachycardia persists after 2 minutes of CPR, you
will administer another shock. What drug and dose should be administered next?
lidocaine 1mg/kg
You are preparing to use a manual defibrillator in the pediatric setting. What best describes when
it is appropriate to use the smaller, pediatric-sized paddles?
if the child weighs <10kg or <1 year old
You are evaluating an irritable 6-year-old girl with mottled skin color. The patient is febrile (T
40°C/104°F), and her extremities are cold with capillary refill of 5 secs. Distal pulses are absent
and central pulses are weak. HR is 180 bpm, RR is 45 bpm, and BP is 98/56 mmHg. How would
you categorize this child's condition?
compensated shock associated with tachycardia and inadequate tissue perfusion
You are supervising a student when is inserting an IO needle into an infant's tibia. The student
asks you what she should look for to know that she has successfully inserted the needle into the
bone marrow cavity. What do you tell her?
'Fluids can be administered freely without local soft tissue swelling.'
An 8-month-old infant is brought to the ED for evaluation of severe diarrhea and dehydration.
On arrival to the ED, the infant becomes unresponsive, apneic, and pulseless. You should for
help and start CPR. Another provider arrives, at which point you switch to 2-rescuer CPR. The
rhythm shown here is seen on the cardiac monitor. The infant is intubated and ventilated with
100% oxygen. An IO line is established, and a dose of epi is given. While continuing highquality CPR, what do you do next?
give NS 20mL/kg IO rapidly
You need to provide rescue breaths to a child victim with a pulse. What is the appropriate rate
for delivering breaths?
1 breath q3-5 secs
What ratio of compressions to breaths should be used for 1-rescuer child CPR?
30 compressions to 2 breaths
A pale and very sleepy but arousable 3-year-old child with a history of diarrhea is brought to the
hospital. Primary assessment reveals a RR of 45 bpm with good breath sounds bilaterally. HR is
150 bpm, BP is 90/64 mmHg, and SpO2 is 92% on room air. Capillary refill is 5 secs and
peripheral pulses are weak. After placing the child on a nonrebreathing face mask (10-L/min
flow) with 100% oxygen and obtaining vascular access, what is the most appropriate immediate
treatment for this child?
bolus of 20mL/kg isotonic crystalloid
A 7-year-old boy is found unresponsive, apneic, and pulseless. CPR is ongoing. The child is
intubated, and vascular access is established. The EKG monitor shows an organized rhythm with
a HR of 45 bpm, but a pulse check reveals no palpable pulse. High-quality CPR is resumed, and
an initial IV dose of epi is administered. What intervention should you perform next?
identify and treat reversible causes
You are caring for a 6-year-old patient who is receiving positive-pressure mechanical ventilation
via an ET tube. The child begins to move his head and suddenly becomes cyanotic, and his HR
decreases. His SpO2 is 65%. You remove the child from the mechanical ventilator and begin to
provide manual ventilation with a bag via the ET tube. During manual ventilation with 100%
oxygen, the child's color and HR improve slightly but his BP remains inadequate. Breath sounds
and chest expansion are present and adequate on the R side and are present but consistently
diminished on the L side. The trachea is not deviated, and the neck veins are not distended. A
suction catheter passes easily beyond the tip of the ET tube. What is the most likely cause of this
child's acute deterioration?
tracheal tube displacement into the R main bronchus
A 1-year-old boy is brought to the ED for evaluation of poor feeding, irritability, and sweating.
The child is lethargic but arousable. He has labored breathing, very rapid pulses, and a dusky
color. His RR is 68 bpm, HR 300 bpm, and BP 70/45 mmHg. He has weak brachial pulses and
absent radial pulses, a capillary refill of 6 secs, SpO2 85% on room air, and good bilateral breath
sounds. You administer high-flow oxygen and place the child on a cardiac monitor and see the
rhythm shown here. The child has no history of congenital heart disease. IV access has been
established. What therapy is most appropriate for this child?
adenosine 0.1mg/kg IV rapid push
A 3-year-old boy presents with multiple-system trauma. The child was an unrestrained passenger
in a high-speed MVC. On primary assessment, he is unresponsive to voice or painful stimulation.
His RR is 5 bpm, HR and pulses are 170 bpm, SBP is 60 mmHg, capillary refill is 5 secs, and
SpO2 is 75% on room air. What action should you take first?
while a colleague provides spinal motion restriction, open the airway with a jaw thrust and
provide bag-mask ventilation
Why is allowing complete chest recoil important when performing high-quality CPR?
the heart will refill with blood between compressions
An 8-year-old child was struck by a car. He arrives in the ED alert, anxious, and in respiratory
distress. His cervical spine is immobilized, and he is receiving 10-L/min flow of 100% oxygen
by nonrebreathing face mask. His RR is 60 bpm, HR 150 bpm, SBP 70 mmHg, and SpO2 84%.
Breath sounds are absent over the R chest but present over the L chest, and the trachea is
deviated to the L. He has weak central pulses and absent distal pulses. What intervention should
be perfomed next?
needle decompression of the R chest
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?
Provide CPR for ~2 mins before leaving to activate the emergency response system
You are giving chest compressions for a child in cardiac arrest. What is the proper depth of
compressions for a child?
compress the chest to at least 1/3 the depth of the chest, ~2 in/5 cm
You are assisting in the elective intubation of an average-sized 4-year-old child with respiratory
failure. A colleague is retrieving the color-coded length-based tape from the resuscitation cart.
What is likely to be the estimated size of the uncuffed ET tube for this child?
5mm tube
A 10-month-old infant is brought to the ED. your initial assessment reveals a lethargic, pale
infant with slow respirations and slow, weak central pulses. One team member begins ventilation
with a bag-mask device with 100% oxygen. A 2nd team member attaches the
monitor/defibrillator and obtains VS while a 3rd team member attempts to establish IV/IO
access. The patient's HR is 38 bpm with the rhythm shown here. The infant's BP is 58/38 mmHg,
and the capillary refill is 4 secs. His central pulses remain weak, and distal pulses cannot be
palpated. Chest compressions are started and IO access is obtained. What medication do you
anticipate will be given next?
epi 0.01mg/kg IO
A 3-year-old unresponsive, apneic child is brought to the ED. EMS personnel report that the
child became unresponsive as they arrived at the hospital. The child is receiving CPR with bagmask ventilation. The rhythm shown here is on the cardiac monitor. A biphasic manual
defibrillator is present. You quickly use the length from head to hell of the child on a color-coded
length-based resuscitation tape to estimate the approximate weight as 15kg. What therapy is most
appropriate for this child at this time?
attempt defibrillation at 30J, and then resume CPR, beginning with compressions
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