It depends on the device. For this device, you can determine hematocrit regardless of how much you fill it, but more gives you a bit more precision than less.
@@VivoPhys I have a question, I did my hematocrit lab today, and I could not seem to get the exact number as automated my teacher given but mine still within the +/-2 SD and normal range, wouldn’t that be acceptable? I mixed the blood at least 10 times before capillary tube, I tend to put more but the reading is like 1-3 numbers higher than the true value so I don’t know what could be wrong. Do you think letting blood sample sit out in room temp. all day before testing can affect result or what could make my reading a bit higher? 😩
Isn’t the clay plug is other way around!?😬
As a lab tech, everything about this video makes me wince so hard
Hi Safe&SoundEquine. Any suggestions?
How do you calculate the measurements at the end? Get the total of measurements and divide by 2?
No math is needed. You just read the hematocrit value off the outside disc.
@@VivoPhys you mean the hematocrit of the RBC will be 52 as it shows that
Well explained.
Wait… you have to fill all the way to the line? I thought it 3 quarter full
It depends on the device. For this device, you can determine hematocrit regardless of how much you fill it, but more gives you a bit more precision than less.
@@VivoPhys I have a question, I did my hematocrit lab today, and I could not seem to get the exact number as automated my teacher given but mine still within the +/-2 SD and normal range, wouldn’t that be acceptable?
I mixed the blood at least 10 times before capillary tube, I tend to put more but the reading is like 1-3 numbers higher than the true value so I don’t know what could be wrong. Do you think letting blood sample sit out in room temp. all day before testing can affect result or what could make my reading a bit higher? 😩
You'll need to ask your instructor what the acceptable range is, but I'd imagine if you're within a couple of their value or is fine.
Thank you so much
You are welcome!
Why we can't use normal centrifuges
You need to spin whole blood in a capillary tube. So any centrifuge with that attachment will work.
Was that a 52% HCT reading that you shown?
Yes
@@VivoPhys polycythemia?
It's likely just some dehydration or slight measurement error in this case.
Cool
Thank you 100. Akshat Raj!