Cardiac arrest Flashcards Preview

CP3 Emergency Medicine > Cardiac arrest > Flashcards

Flashcards in Cardiac arrest Deck (17)
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1

What is your first step when you find a patient unresponsive and not breathing normally

Call for help

2

What is the ratio of chest compression and breaths when initiating CPR

30:2

3

What are the shockable rhythms

Pulseless VT and VF

4

What is it called when there is no central pulse but irregular QRS

PEA

5

How long do you wait after shocking or resuming CPR (non shockable) before reassessing the rhythm

2 mins

6

How many shocks do you give before giving drugs

three

7

What are your two initial drugs in a shockable rhythm

Adrenaline 10ml of 1:10,000 iv
Amiodarone 300mg iv

8

How often do you repeat doses of adrenaline and amiodarone

adrenaline every 3-5 mins or every other rhythm check
amiodarone- only give once at the beginning

9

What drugs are used in non shockable rhythms

Adrenaline 10ml 1:10,000 iv as soon as access is secured, repeat every 3-5 mins or every rhythm check

10

Name the four components of post-cardiac arrest syndrome

-post arrest brain injury
-post-arrest myocardial dysfunction
- Systemic ischaemia/ reperfusion response
- persistent precipitant pathology

11

How can you avoid post arrest brain injury

ventilate to maintain sats 94-98 but take care not to hyperventilate as this causes oxidatitive stress, anyone with reduced cerebral function should be sedated, ventilated and admitted to ITU

12

What should blood pressure be maintained at

60-160 because the brain looses its autoregulation

13

How can hyperthermia be managed

Cooling to 36 degrees (neuroprotective) with cooling pads, or intravascular heat exchangers. Need sedation to stop shivering
cool for >24 hours

14

What drug is given in SVT

iv adenosine

15

What drug is used in VT

amiodarone

16

What drug is given in torsades de pointes

iv Magnesium

17

What is atropine used for

Bradycardia with adverse signs: shock, syncope, heart failure, myocardial ischaemia