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It is contaminated from the alcohol swab.

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Why is the first drop wiped away from the capillary puncture site?

It is contaminated from the alcohol swab.


Why is the first drop of blood wiped away from the capillary site?

It is contaminated from the alcohol swab.


When performing a capillary stick what do you do with the first drop of blood?

The first drop of blood is wiped away because it is mainly just tissue.


You are 13 and when you wiped there was blood?

[You are 13 and when you wiped there was blood] congrats that means you started your peirod tell your mother and she will get you supplies good luck


When you went to the bathroom and wiped you saw blood on the tissue but this has only happened twice in the last two days is it your first period?

well..yeah


Why do you need to wipe off the first blood drop when donation?

The first drop of blood is diluted with the alcohol wipe that was put over the tip of your finger; the alcohol may also interfere with the iron content test. To get an accurate reading, the first drop is wiped away and fresh blood is collected.


In a blood group determination experiment after the finger is pricked the first drop of blood is usually wiped off Why?

Possible contamination of the sample by the instrument (lancet) used to obtain the droplet. The second drop of blood would be the better sample.


What chemical can be used to detect blood when been wiped from a surface?

Luminol is a common chemical used to detect blood that has been wiped from a surface. It reacts with the iron present in hemoglobin to produce a blue glow, making bloodstains visible even after they have been cleaned or wiped away.


You are 8 months pregnant and had a very small blood clot looking thing when you wiped after urinating but no blood what was it and is it normal?

it sound like your mucus plug. can be first sign of labor too so good luck!!!!!!


What chemical is used to detect blood after it has been wiped from a surface?

By The Wanderer Luminol


When your girlfriend wiped she saw blood and she is pregnant?

Probably not, sounds like menses...


What chemical can be used to detect blood even when it's been wiped clean?

Luminol is a chemical that can be used to detect blood even when it has been wiped clean. It reacts with the iron found in hemoglobin, producing a blue glow which indicates the presence of blood.