PALS ARRHYTHMIAS Exam Questions
And Answers |Latest 2025 | Guaranteed Pass.
Whenever a child has an abnormal heart rate or rhythm, you must quickly determine? -
Answer✔Determine if the arrhythmia is causing hemodynamic instability or other signs of
deterioration.
What are the signs of instability in a patient with arrhythmias? - Answer✔Respiratory distress
or failure
Shock with poor end-organ perfusion, may occur with or without hypotension
Irritability or decreased level of consciousness
Irritability or decreased level of consciousness
chest pain or vague feeling of discomfort in older children
sudden collapse
Priorities in initially managing arrhythmias are? - Answer✔The same as they are for all critically
ill children: Support ABC and treat underlying cause
Bradycardia - Answer✔A heart rate that is slow in comparison with a normal heart rate range
for the childs age, level of activity and clinical condition
What is the leading cause of symptomatic bradycardia in children? - Answer✔Tissue hypoxia
Symptomatic Bradycardia - Answer✔Heart rate below 60/min associated with cardiopulmonary
compromise
Cardiopulmonary compromise - Answer✔* Hypotension
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* Acutely altered mental status
* Signs of shock
Bradycardia is an ominous sign of? - Answer✔Sign of impending cardiac arrest in infants and
children. Especially if hypotension or poor tissue perfusion is present
Children with severe cardiovascular compromise from pulmonary embolism, what treatment
should be considered? - Answer✔Fibrinolytic agents
What is the initial treatment of pediatric bradycardia with cardiopulmonary compromise? -
Answer✔Bag mask ventilation with 100% O2
Fibrinolytic agents - Answer✔tissue plasminogen activator, streptokinase, reteplase
tenecteplase
Primary bradycardia - Answer✔A result of congenital or acquired heart conditions
Causes of primary bradycardia - Answer✔Congenital abnormality of the heart pacemaker or
conduction system
Surgical injury to the pacemaker or conduction system
Cardiomyopathy
Myocarditis
Secondary bradycardia - Answer✔Result of noncardiac conditions that alter the normal
function of the heart (Slow sinus node pacemaker or slow conduction)
secondary bradycardia causes - Answer✔Hypoxia
Acidosis
Hypotension
Hypothermia
Drug effects
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