Hiding sn consumption if found early

[FinalDestination]

I was wondering if you could conceal sn consumption by wearing enough makeup (lipstick, concealer blush nail polish etc) to delay detection by emt that find you which could delay the administration of methylene blue as antidote - more time for to do what it needs to and finish the job?
Sure they'd run tests later on in the hospital and find out, but by then it would like be too late right?

 

[EmptyBottle]

The brown blood is not concealable, at the moment they draw the blood and see it thick and brown (blood draws are routine)

 

[FinalDestination]

The brown blood is not concealable, at the moment they draw the blood and see it thick and brown (blood draws are routine)

Ah well didn't think of that would they know straight away the brown blood is due to sn ingestion, if say it's not obvious from the scene that's what was taken?

 

[purelydaft]

Methylene blue is used to treat methemoglobinemia in general, and brown blood and lack of response to supplemented oxygen are major signs. Regardless, I don't know if EMTs will administer the antidote without specific knowledge beforehand i.e. you telling them. I suppose they would provide oxygen therapy and rush you to a hospital.

 

[EmptyBottle]

Ah well didn't think of that would they know straight away the brown blood is due to sn ingestion, if say it's not obvious from the scene that's what was taken?

not sure if they would know it, or how long they will take before drawing blood.