CARDIAC ARREST Flashcards
BLS Assessment
Check Responsiveness: tap patient and shout “are you okay.”
Scan patient
Activate the emergency response system and obtain an AED
Circulation
Defibrillation
First Step Pulseless Arrest
Shout for Help
Activate Emergency Response
Second Step Pulseless Arrest
Start CPR
Give Oxygen
Attach Monitor / Defibrillator
What rhythms are not shockable
PEA and asystole
What rhythms are shockable
V fib and Pulseless V tach
Ventilation rate if NO advanced airway
30:2
Length of CPR
2 minutes / 5 cycles
Biphasic Shock energy for defibrillation
120-200 J
Dose and frequency of epinephrine
1 mg IV or IO followed by 20 ml NS every 3-5 minutes
Dose and frequency of amiodarone
Give after the third shock if VF or pVT
First dose 300 mg bolus followed by 20 ml NS
Second dose 150 mg bolus followed by 20 ml NS
Dose and frequency of Lidocaine
Give after 3rd round of CPR
1st dose: 1 -1.5 mg / kg
2nd dose: 0.5 - 0.75 mg / kg
Indications and dose of magnesium
Torsades do Pointes
1-2 grams diluted in 10 ml of D5W
List the reversible H’s of cardiac arrest
Hypovolemia
Hypoxia
Hydrogen idons (acidosis)
Hypokalemia
Hypothermia
List the reversible T’s of cardiac arrest
Tension pneumo
Tamponade
Toxins
Throbosis (pulmonary or coronary)
Uses of waveform capnography in CPR
Evaluate effectiveness of chest compressions
Indentification of ROSC
Verify and monitor ETT placement
CPR Quality: depth and rate of compression. Frequency of compressor rotation. Compression-ventilation ratio if no advanced airway. How to monitor quality of CPR. PETC02 target
2 inchest at 100 - 120 bpm
Minimize interruptions in compressions
Rotate compressor every 2 minutes
with complete recoil
30-2 compression-ventilation ratio if no advanced airway
Avoid excessive ventilation
Insert advanced airway
Quantitative waveform capnography
PETC02 target > 10 mm Hg
Advanced Airway: List 2 forms of advanced airway. How to confirm and monitor ET tube placement.
Endotracheal intubation
Supraglottic airway
Waveform capnography or capnometry
Ventilation rate if advanced airway
1 breath every 6 seconds
Ventilation rate with an advanced airway
1 breath every 6 seconds
3 signs of Return of Spontaneous Circulation (ROSC)
Pulse and Blood Pressure
Abrupt sustained increase in PETC02 (typically >40 mmHg)
Spontaneous arterial pressure waves in intra-arterial monitoring
Hypovolemia Intervention
Expose patient and look for signs of blood loss
Obtain IV access
Use fluid challenge to determine if arrest is related to hypovolemia
Hypoxia Intervention
Ensure that the airway
is open.
Ensure adequate
ventilation and bilateral
breath sounds.
Ensure oxygen supply is
connected properly.
Hydrogen Ion (acidosis) Intervention
VBG
Provide Adequate Ventilations
Use sodium bicarbonate 1 mEq / kg IV to prevent metabolic acidosis if necessary
Sodium Bicarbonate dosing
1 mEq / kg IV
1 amp = 50 mEq = 50 ml
Hyper / Hypokalemia intervention
Obtain ECG
Give diluted potassium
OR
Give Calcium gluconate
IV potassium dosing: peripheral vs central line
Peripheral line: KCl 10mEq over 1 hour
Central line: KCl 20mEq over 1 hour
Calcium Gluconate dosing
1 amp = 1 g
Tension Pneumothorax ECG signs, Physical Signs, intervention
ECG signs: Narrow QRS complexes and slow or fast heart rate.
Physical signs: JVD, tracheal deviation, unequal breath
sounds, difficulty with ventilation, and no pulse felt
with CPR.
Treatment: Needle decompression.
Etiology of cardiac arrest with toxins
Cardiac Toxicity
Respiratory Depression or circulatory side effects
Naloxone dosing
0.4 - 2 mg IV
4 mg IN
Examples of drugs causing respiratory depression
opioids
benzodiazepines
ETOH
Examples of drugs causing torsades
amiodarone
sotalol
tricyclic antidepressants
calcium channel blockers.
Toxicity associated with bradyarrhythmias.
calcium channel blockers
Beta-adrenergic blockers
digoxin
opioids
clonidine
cholinesterase inhibitors
succinylcholine.
DDx Cardiac Arrest
Cardiac:
MI -> VF / VT
Arrythmia
Bradycardia
Aortic Dissection
Tamponade
PE
Pulmonary:
Upper Airway Obstruction
Respiratory Arrest - COPD / Asthma / Narcotics
PTX
Tox / Metabolic:
Overdose
Hypoglycemia
Hyper / Hypokalemia
Hypomagnesemia
Other:
Anaphlaxis
Septic Shock
IC Hemorrhage
Hemorrhage
Hypothermia