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ACLS Case Study
» In Hospital Case Study 3
ACLS Megacode 3 In-Hospital
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You are a healthcare provider working in a surgical recovery unit. One of your patients is a 63-year-old male who is 4-hrs post-op from an unremarkable ACL reconstruction surgery. They are receiving supplemental oxygen via NC at 6 L/min. Upon entering their recovery room, you find the patient unconscious with the NC on the floor beside the bed. A rapid initial assessment reveals the following:
Vital signs
Pulse rate:
25/min
Blood pressure:
Unobtainable
Respiratory rate:
6/min
Temperature:
Not taken
Physiological systems
Integumentary:
Warm, diaphoretic
Cardiovascular:
Faintly palpable central pulses bilaterally
Respiratory:
Labored, shallow
Neurological:
Unresponsive
1. A rhythm check reveals sinus bradycardia at 25/min. You have activated the Code Team. What are your initial actions?
*
Secure the airway and begin supported ventilation via BVM
Consider synchronized cardioversion
Ensure adequate IV access and administer epinephrine 1.0 mg IV/IO
Start CPR (five cycles)
You secure the airway and begin supported ventilation via BVM. In addition to respiratory support, you recognize the need to ensure adequate IV access and monitor cardiovascular changes.
2. What is the correct treatment order in the given scenario?
*
Ensure adequate IV access, monitor ECG and vitals, administer oxygen, assist breathing
Monitor ECG and vitals, assist breathing, administer oxygen, ensure adequate IV access
Assist breathing, administer oxygen, monitor ECG and vitals, ensure adequate IV access
Ensure adequate IV access, administer oxygen, monitor ECG and vitals, assist breathing
Adequate IV access has been ensured and a rhythm check reveals unchanged sinus bradycardia. The patient is progressively deteriorating, and signs of inadequate perfusion become rapidly apparent.
3. What are your next actions?
*
Administer adenosine 6.0 mg IVP
Continue monitoring the ECG and observing vitals
Administer atropine 1.0 mg IVP
Start CPR (five cycles)
Atropine 1.0 mg IVP is administered with no change in condition. A rhythm check reveals unchanged sinus bradycardia. The HR is unchanged at 25/min.
4. What are your next actions?
*
Administer lidocaine 0.75 mg/kg IVP
Administer adenosine 1.0 mg IVP
Administer atropine 1.0 mg IVP
Attempt transcutaneous pacing (TCP)
TCP is attempted at a rate of 60/min. After 45 seconds, the attempt to capture is unsuccessful and there is no change in condition. You consider additional pharmacological intervention at this time.
5. What two drugs should you consider in your next actions?
*
Dopamine and epinephrine
Epinephrine and Amiodarone
Lidocaine and dopamine
Dopamine and Amiodarone
An epinephrine infusion is prepared and transvenous pacing is considered. During this time, a rhythm check reveals a conversion from sinus bradycardia to asystole.
6. What should you verify to confirm if the rhythm is truly asystolic?
*
ECG signal gain
Loose or unconnected ECG leads
All the above
Attempt to palpate one of the peripheral pulses
True asystole has been confirmed.
7. What are your next actions?
*
Intubate and deliver a single unsynchronized shock of 120 J
Administer atropine 1.0 mg IVP and re-attempt transcutaneous pacing
Intubate and administer epinephrine 1.0 mg IVP
Start CPR (five cycles) and administer epinephrine 1.0 mg IVP
The first cycle of CPR is completed and epinephrine 1.0 mg IVP is administered. Following five cycles of CPR, a rhythm check reveals a conversion from asystole to ventricular fibrillation. The patient remains unresponsive.
8. What are your next steps?
*
Deliver three stacked shocks with brief pauses between each defibrillation
Resume CPR (five cycles)
Administer epinephrine 1.0 mg IVP
Deliver a single unsynchronized shock of 120 J
A single shock of 120 J is delivered, and CPR is resumed for another five cycles. Following five cycles of CPR, a rhythm check that reveals unchanged ventricular fibrillation.
9. What are your next actions?
*
Resume CPR (five cycles
Administer epinephrine 1.0 mg IVP
Administer atropine 0.5 mg IVP
Deliver a single unsynchronized shock of 200 J
A single unsynchronized shock of 200 J is delivered, and CPR is resumed for another five cycles.
10. During the first cycle of CPR, what are your next actions?
*
Administer epinephrine 1.0 mg IVP without interrupting chest compressions
Transport to the intensive care unit or seek expert consultation
Deliver a single unsynchronized shock at a higher setting (200-360 J)
Administer lidocaine or another antiarrhythmic drug
Epinephrine is administered and the remaining cycles of CPR are performed. Following five cycles of CPR, a rhythm check reveals unchanged ventricular fibrillation. A single unsynchronized shock of 300 J is delivered, CPR is resumed for another five cycles, and amiodarone 300 mg IVP is administered. Following five cycles of CPR, a rhythm check reveals unchanged ventricular fibrillation.
11. What are your next actions?
*
Administer magnesium sulfate 2.0-4.0 g IV
Deliver a single unsynchronized shock of 360 J
Administer amiodarone 150 mg IV
Administer atropine 0.5 mg IV
A single unsynchronized shock of 360 J is delivered, and CPR is resumed for another five cycles. Following five cycles of CPR, a rhythm check reveals a conversion from ventricular fibrillation to sinus rhythm. The patient now has a palpable pulse. HR 71/min, BP 110/70, RR 11/min. Maintenance antiarrhythmic therapy is considered.
12. What drug is the ideal choice for you to administer via infusion in the given scenario?
*
Epinephrine
Magnesium sulfate
Lidocaine
Amiodarone
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