Resusitation

Question 1

What percentage of OOHCA will have rib fracture?

Answer 1

Up to 70%

Question 2

Explain ventricle dilation during VF.

Answer 2

Ventricles may dilate up to 30%.
When the ventricles begin to dilate initially, a shock will cause a contraction that will compress the dilation.
As VF continues this ‘contraction’ diminishes and dilation progresses.
Eventually the ventricles will tamponade when the pericardium reaches its maximum stretch.

Question 3

What are the 4 ‘H’s and 4 ‘T’s of cardiac arrest causes?

Answer 3

Hypoxia
Hypovolemia
Hypothermia
Hyper/Hypo - kalemia/glycemia (+other metabolic disturbances)

Thrombosis (coronary or pulmonary)
Tension pneumothorax/haemothorax
Tamponade (cardiac)
Toxins

Question 4

What is the reoccurrence rate of VF?

Answer 4

50% within 2 mins of successful termination and 75% overall.

Question 5

What is trismus?

Answer 5

A restriction of the range of motion of the jaw.

Question 6

Difficult airway (HAVNOT)

Answer 6

History of previous difficulties
Anatomical abnormalities
Visual cues
Neck immobility
Opening of the mouth
Trauma

Question 7

Difficult BVM (BONES)

Answer 7

Beard
Obese
No teeth
Elderly
Sleep apnea

Question 8

How long does it take for complete airway obstruction to produce irreversible brain damage?

Answer 8

3-5 minutes

Question 9

Without oxygen how long does it take brain death to occur?

Answer 9

10 minutes

Question 10

Under what resp rate do you ventilate?

Answer 10

10 breaths per minute