14.2 Closed-Loop Communication

Why Open-Loop Orders Fail Children

An open-loop order sounds like this: the leader shouts "Give epi!" into a crowded room. No one is named. No dose is stated. No route is specified. Two people may draw different concentrations, one may give an adult dose to a toddler, or—equally dangerous—no one may give the drug because each assumed someone else would. The loop never closed, so the system never verified understanding or completion.

Closed-loop communication is a high-reliability practice borrowed from aviation and military command systems and adopted throughout AHA resuscitation training. It forces explicit transmission, explicit reception, and explicit confirmation. In pediatrics, where weight-based dosing multiplies calculation risk, closed loops are not optional politeness—they are a primary safety control.

The four-part loop (memorize this sequence)

Some instructors describe a three-step core (order → read-back → confirm correctness before action) plus a completion report. For exam and practice purposes, treat order, acknowledge, action, confirmation as the full safety cycle. If the read-back is wrong ("0.1 mg/kg" instead of "0.01 mg/kg"), the leader corrects before the drug is given.

Address a person, not the air

Orders should target a named individual or clear role ("medication nurse," "airway"). Broadcast orders without ownership are open loops. If two people start the same task, the leader resolves ownership immediately: "Sam has meds; Jordan stay on the monitor."

Building Clear Pediatric Orders

A high-quality PALS order packages five elements when relevant:

1. Who — name or role
2. What — drug, shock, fluid, procedure
3. How much — mg/kg or J/kg and the calculated amount when known
4. Route / device — IV, IO, ETT only if truly indicated (prefer IV/IO), defibrillator pads
5. When — now, after next shock, at next 2-minute mark

High-yield closed-loop examples (study these patterns)

Epinephrine in arrest

• Leader: "Priya, give epinephrine 0.01 mg/kg IO now."
• Priya: "Giving epinephrine 0.01 mg/kg IO."
• Leader: "Correct."
• Priya (after push/flush): "Epinephrine 0.01 mg/kg given IO."
• Recorder: "Epi at 14:06—next due in 3 to 5 minutes."

Defibrillation

• Leader: "Monitor, charge to 2 J/kg for VF."
• Monitor: "Charging to 2 J/kg."
• Leader: "Clear—shock 2 J/kg."
• Team: visual/verbal clear; shock delivered.
• Monitor: "Shock delivered at 2 J/kg—resume CPR."
• Next shockable cycle: escalate to 4 J/kg with the same loop.

Adenosine for SVT (with pulse, when indicated)

• Leader: "Meds, adenosine 0.1 mg/kg rapid IV push with flush."
• Meds: "Adenosine 0.1 mg/kg rapid IV with flush."
• After administration: "Adenosine 0.1 mg/kg given; ready with 0.2 mg/kg if needed."

Fluid bolus in hypotensive hypovolemic shock

• Leader: "Access, give 20 mL/kg isotonic crystalloid IV over as rapid as tolerated, then reassess."
• Access: "Giving 20 mL/kg isotonic crystalloid IV, then reassess."
• After bolus: "20 mL/kg crystalloid complete; BP and perfusion rechecked."

Synchronized cardioversion (unstable tachycardia)

• Leader: "Monitor, synchronized cardioversion at 0.5 to 1 J/kg."
• Monitor: "Sync on—set to 0.5–1 J/kg."
• Clear, deliver, confirm: "Cardioversion delivered; rhythm now…"
• If needed: escalate toward 2 J/kg with a new closed loop.

What closed loops prevent

Medication errors and task failures cluster when stress peaks—exactly when open-loop shouting feels natural. Training the muscle memory of read-back is how teams stay safe at peak load.

Speak Up for Safety—and Summarize Every 2 Minutes

Speaking up is part of the communication system

Closed-loop communication is not only for orders the leader initiates. Any member who sees a safety threat must speak up promptly and specifically:

• "Stop—pads are still charging and someone is touching the bed."
• "That syringe is labeled 1 mg—this child should get 0.01 mg/kg, which calculates to 0.15 mg."
• "Compressions are too shallow—switch compressor."
• "We are bagging too fast—slow to visible chest rise only."

Phrase concerns with content, not attack: state the observation and the needed correction. Leaders model psychological safety by thanking the speaker and acting on valid concerns. Hierarchy never outranks a wrong dose or an unsafe shock.

The 2-minute summary (shared mental model)

High-performance leaders give a brief status summary about every 2 minutes, typically tied to the rhythm check / compressor switch:

"Two-minute check: still PEA. CPR quality good. Last epi 3 minutes ago—next epi after this cycle if still nonshockable. IO working. Differential includes hypovolemia and hypoxia—continue oxygen, prepare fluid bolus, check glucose. Any other ideas?"

Summaries should cover:

1. Current rhythm / perfusion state (arrest pathway, ROSC, shock compensated vs hypotensive)
2. What has been done (shocks, epi doses/times, airway status)
3. Immediate next actions
4. Working differential (H's and T's or shock type)
5. Invitation for critical input ("what am I missing?")

Without summaries, teams develop tunnel vision: everyone focuses on a single failed intubation attempt while VF goes untreated, or they chase labs while compressions pause too long. The 2-minute cadence matches CPR cycles and keeps cognitive load shared.

Communication during transitions

Closed loops matter at handoffs too:

• Compressor switch: "I have the chest" → previous compressor releases only when the new compressor is ready.
• Airway change: announce plan, pause rules (<10 seconds if compressions must stop), confirm ETCO2 after tube placement.
• Post-ROSC: "Pulse present, BP 78/42, SpO2 100% on 100%—wean oxygen toward mid-90s teaching range, reduce bagging rate toward normocapnia" (Chapter 12).

Clinical scenario (synthesis)

A 6-year-old in VF receives a first shock. Leader: "Monitor, charge 4 J/kg for persistent VF; Meds, prepare epi 0.01 mg/kg IO after the shock when CPR resumes." Monitor read-back: "Charging 4 J/kg." Meds: "Preparing epi 0.01 mg/kg IO after shock." Shock delivered, CPR resumes, epi given with confirmation, recorder logs times. At the next 2-minute mark the leader summarizes: "Still VF, two shocks given—2 then 4 J/kg—one epi given, consider antiarrhythmic per algorithm, check pad contact and reversible causes." That is closed-loop teamwork under fire.

Bottom line for 14.2: Use order → acknowledge → action → confirmation for every critical task; package who, what, dose, route, when in pediatric orders; speak up for safety; and summarize about every 2 minutes with the rhythm check so the entire team shares one accurate mental model.