Sunday, February 25, 2007

finally after 3 weeks of waiting, the 3 part special of grey's anatomy has come to an end. yeap, i know meredith won't die, cause the show won't be called grey's anatomy if the producers killed her. imagine yang's anatomy??

so the answer i was waiting for this episode was, how is meredith gonna wake up? after watching ep 17, i did some research on the net and found this.

The body's reaction to submersion
Submerging the face in water triggers the mammalian diving reflex. This is found in all mammals, and especially in marine mammals such as whales and seals. This reflex is designed to protect the body by putting it into energy saving mode to maximize the time it can stay under water. The effect of this reflex is greater in cold water than in warm water and has three principal effects:

  • Bradycardia, a slowing of the heart rate of up to 50% in humans.
  • Peripheral Vasoconstriction, the restriction of the blood flow to the extremities to increase the blood and oxygen supply to the vital organs, especially the brain.
  • Blood Shift, the shifting of blood to the thoracic cavity, the region of the chest between the diaphragm and the neck, to avoid the collapse of the lungs under higher pressure during deeper dives.


The reflex action is automatic and allows both a conscious and an unconscious person to survive longer without oxygen under water than in a comparable situation on dry land.

Drowning victims should be treated even if they have been submerged for a long time. The rule "no patient should be pronounced dead until warm and dead" applies. Children in particular have a good chance of survival in water up to 3 minutes, or 10 minutes in cold water (10 to 15 �C or 50 to 60 �F). Submersion in cold water can slow the metabolism drastically. There are rare but documented cases of survivable submersion for extreme lengths of time. In one case a child survived drowning after being submerged in cold water for 70 minutes. In another, an 18 year old man survived 38 minutes under water. This is known as cold water drowning.

it was rather nice to see denny, dylan (the bomb squad guy), ellis grey scurb nurse, and bonnie. i could not remember who bonnie was, and then i remembered she was the guy stuck with anothe guy with a pole through their abdomen. the surgeons had to give up on her due to excessive bleeding after the pole was pulled up and meredith, being new, had to literally watch her die. i guess there is a 'guilt' part in meredith.

one thing i learnt about, john doe n jane doe are actually used to call someone whose identity's is unable to be verified.

1 comment:

Anonymous said...

This is great info to know.