Tom Is in Respiratory Arrest Due to an Electrical Shock

Multiple Choice

Tom is in respiratory arrest due to an electrical shock.Why does a good samaritan have up to 4 or 5 minutes to begin CPR and save Tom's life?

A) There is reserve oxygen in Tom's lungs.
B) There is a venous reserve of oxygen in Tom's blood.
C) The ambient PO₂ can support life that long.
D) The Haldane effect lasts up to 5 minutes.
E) Tom's hypoxic drive will keep him alive for up to 5 minutes.