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Discussion

Gray on ice?

I had a clinical in the ER last week and kept hearing "gray on ice"...

What is that??:icon_roll

Featured Replies

Hmmm....I really have no idea, but I'll take a stab at it. Is it a blood gas sample? Do they go in a gray top tube? I know they go on ice. Just a thought.

  • Experts

Grey on ice in our ER meant you draw blood in the gray-topped tube, label it and place on ice. In our facility, you could get a lactic acid or ABG's from it.

yup....ditto

Yep....draw in a grey top, put it on ice.

Grey top, put it on ice here as well.

Our lab uses green tops on ice. Oh, well!

Suebird :p

  • Author

Oh... Ok.

So... Why do you put some on ice and some not?

How do you know whether you put it on ice or not?

At my facility Gray on ice=lactic acid, green on ice=ammonia level. If we draw a gas (arterial or venous) and resp is not right there to get it, we put the gas syringe on ice. If you have questions re labs at your facility, contact the lab and they should be able to tell you which tests go in what tube and what needs to be iced. Also, rely on some of the veteran nurses, they won't steer you wrong. It doesn't take a long time drawing labs to get the hang of what goes in what. I made a list that I kept with me while I was on orientation. Of course, there are always those odd ball tests that nobody can remember which tube and how much, that's when I call the lab.

:yeahthat:

At my facility Gray on ice=lactic acid, green on ice=ammonia level. If we draw a gas (arterial or venous) and resp is not right there to get it, we put the gas syringe on ice. If you have questions re labs at your facility, contact the lab and they should be able to tell you which tests go in what tube and what needs to be iced. Also, rely on some of the veteran nurses, they won't steer you wrong. It doesn't take a long time drawing labs to get the hang of what goes in what. I made a list that I kept with me while I was on orientation. Of course, there are always those odd ball tests that nobody can remember which tube and how much, that's when I call the lab.
Oh... Ok.

So... Why do you put some on ice and some not?

How do you know whether you put it on ice or not?

If you're ever in doubt about whether or not to ice something, call the lab.

Some specimens are iced to keep it from breaking down before you can get a result.

At my facility Gray on ice=lactic acid, green on ice=ammonia level. If we draw a gas (arterial or venous) and resp is not right there to get it, we put the gas syringe on ice. If you have questions re labs at your facility, contact the lab and they should be able to tell you which tests go in what tube and what needs to be iced. Also, rely on some of the veteran nurses, they won't steer you wrong. It doesn't take a long time drawing labs to get the hang of what goes in what. .

This is the same as at my Facility

Mary Ann

  • Experts

Putting specimens on ice slows down metabolism in the sample. Lactic acid and ammonia rise very quickly in a body temperature specimen and therefore give false high results. Glucose on the other hand will fall because the cells in the sample will keep absorbing it. There will always be unavoidable delays in processing labs, so this method gives the most accurate results.

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