EKG

Question 1

Most common causes of cardiac arrest

Answer 1

hypovolemia, hypoxia, hydrogen ion (acidosis), hypo/hyperkalmia, hypothermia

tension pneumothorax, tamponade (cardiac), toxins, thrombosis (pulmonary), thrombosis (coronary)

Question 2

common underlying causes of PEA

Answer 2

hypovolemia, hypoxia

Question 3

consider what treatment for PEA associated with narrow complex tachycardia?

Answer 3

volume infusion

Question 4

Hypovolemia in PEA physiologic manifestations

Answer 4

rapid, wide complex tachycardia

typically produces increased diastolic and decreased systolic.

Question 5

treatments for drug overdose and toxic exposures

Answer 5

prolonged CPR
eCPR with ECMO
IABP
renal dialysis
IV lipid emulsion
specific drug antidotes (digoxin immune Fab, glucagon, bicarbonate)
transcutaneous pacing
correction of severe electrolyte disturbances (K+, Mg2+, Ca2+, acidosis)

Question 6

Complications of excessive ventilation

Answer 6

increases intrathoracic pressure -> decreases venous return -> diminished cardiac output

gastric inflation -> patient vomits -> aspiration of gastric contents

cerebral vasoconstriction -> reduced blood flow to brain