Bradycardia With a Pulse Flashcards
7 cards from real PALS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Bradycardia With a Pulse flashcards as text
A 5-year-old receives atropine 0.02 mg/kg for symptomatic bradycardia. Five minutes later the HR is unchanged at 50 bpm. The maximum total atropine dose is:
Answer: 0.04 mg/kg (max 1 mg in children)
PALS allows a repeat atropine dose of 0.02 mg/kg; the maximum total dose is 1 mg for children.
A teenager is found bradycardic with a HR of 38 bpm after taking a calcium channel blocker overdose. Which treatment is most appropriate?
Answer: High-dose insulin euglycemic therapy and calcium chloride IV
Calcium channel blocker overdose is treated with IV calcium (calcium chloride or gluconate) and high-dose insulin euglycemic therapy to restore cardiac function.
During a code, a 7-year-old is bradycardic and unresponsive despite two doses of atropine and one dose of epinephrine. The team starts CPR. What compression-to-ventilation ratio is correct for a 2-rescuer pediatric CPR scenario (intubated)?
Answer: Continuous compressions at 100–120/min with asynchronous ventilations at 1 breath every 2–3 seconds
Once an advanced airway is in place for a child, CPR delivers continuous compressions at 100–120/min with asynchronous breaths at 1 per 2–3 seconds.
A 6-month-old has a HR of 72 bpm with capillary refill of 4 seconds and poor feeding. What is the most likely cause of bradycardia in this age group?
Answer: Hypoxia or respiratory compromise
In infants, respiratory compromise and hypoxia are the most common causes of bradycardia; respiratory assessment is the priority.
Which statement correctly describes the role of pacing in PALS bradycardia management?
Answer: Pacing is indicated only after drugs fail and for patients with heart block or sinus node dysfunction
Pacing is a secondary option in PALS, used when pharmacotherapy fails or for refractory heart block and sinus node dysfunction.
A 4-year-old is bradycardic with a HR of 50 bpm and is cold to the touch with a core temperature of 30°C (86°F). Drug therapy has been ineffective. What is the priority intervention?
Answer: Begin active rewarming and limit drug doses due to hypothermia
In hypothermia, rewarming is the definitive treatment; drugs are less effective at low temperatures and can accumulate to toxic levels if repeated.
During post-resuscitation care of a child with bradycardia, continuous epinephrine infusion is ordered. What rate range is used in PALS?
Answer: 0.01–1 mcg/kg/min
The PALS epinephrine infusion dose range for bradycardia and poor perfusion is 0.01–1 mcg/kg/min, titrated to effect.