Cardiac Arrest Flashcards
What is the proper dosage for amiodarone?
300 mg; then 150 mg
What are the 3 purposes of waveform capnography?
- Assess ET tube placement is correct.
- Assess effectiveness of chest compressions.
- Alert to ROSC.
How does ROSC manifest on waveform capnography?
sudden rise in EtCO2
What level of EtCO2 indicates that chest compressions must be improved?
<10
What drug may be used as a substitute for amiodarone?
lidocaine
What are the actions of amiodarone?
beta-blocker and class iii anti-arrhythmic (blocks K+ channels), as well as Na+, Ca++, and alpha-blocker.
What are the 5 H’s of reversible causes of cardiac arrest?
Hypovolemia Hypoxia H+ (acidosis) Hyp0-/hyperkalemia Hyothermia
What are the 5 T’s of reversible causes of cardiac arrest?
Tension pneumothorax Tamponade Toxins Thrombosis, cardiac Thrombosis, pulmonary
How does hyperkalemia manifest on the ECG?
flat P; wide QRS; peaked T
How does hypokalemia manifest on ECG?
flat P; flat or inverted T; U wave
ECG of hypovolemia?
sinus tachycardia
ECG of hypoxia?
slow rate (or others)
What ECG manifestation do Tension pneumothorax, Tamponade, and pulmonary Thrombosis all cause?
Narrow QRS complex
Why must we make sure not to hyperventilate pts. following cardiac arrest?
low CO2 lowers cerebral perfusion
What is the basis of the post-cardiac arrest algorithm?
ABC
