• iamthetot@piefed.ca
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    1 day ago

    I know it’s just a silly comic, but I’m pretty sure collection bags are lower than you do that gravity can do its work. Bags hung above you like that are usually for putting things into you.

    Then again, I’m not in the field and could be totally wrong here, happy to be corrected.

    • ceenote@lemmy.world
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      1 day ago

      I’m not in the field either, but based on my experience, you’re right. They also draw blood into small vials, the big bag is for giving/donating blood.

      • MinnesotaGoddam@lemmy.world
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        17 hours ago

        and those small vials are sealed vacuums (or close to it. we pretend) to make the blood go in easier.

        when they break out the 100mL syringe, you know you’re in for it.

    • chuckleslord@lemmy.world
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      1 day ago

      Unless you’re doing some filtered retrieval (like double red donation) you’d be correct. Usually the blood bag is below the patient to assist with the filling.

      Anything using a machine, though, it doesn’t matter where the final bag is for collection.

    • Elgenzay@lemmy.ml
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      1 day ago

      Yeah when i had an IV in me, the tube had a part where it branched off into a section with a rubber wall where they stick the syringe through it to collect blood without having to stick you again

    • Grail@multiverse.soulism.net
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      1 day ago

      There’s this stuff called blood pressure, that can make blood go up. That’s how the blood in your feet goes up towards your heart.

      • chuckleslord@lemmy.world
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        1 day ago

        Yeah, but no. The collection bag is usually beneath the donor, so that it collects faster. Unless there’s a machine to assist (like in collecting plasma, platelets, or double red donations)

      • MajorMajormajormajor@lemmy.ca
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        1 day ago

        Mechanical contraction of veins in your lower legs from muscle contractions (walking generally, but could just be clenching) is what “pumps” that blood back to the heart. Once blood enters the capillaries, the blood pressure is quite low and not sufficient to return to the heart.

        This is why people can faint when standing for too long, commonly seen in military parades. It’s also why members are taught to clench the calves repeatedly/wiggle their toes to prevent this.

        • MinnesotaGoddam@lemmy.world
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          17 hours ago

          Mechanical contraction of veins in your lower legs from muscle contractions (walking generally, but could just be clenching) is what “pumps” that blood back to the heart. Once blood enters the capillaries, the blood pressure is quite low and not sufficient to return to the heart.

          your legs are legitimately like a second heart. I was passing out because i just gave blood and had to sprint to the toilet and give some more. Well, on the toilet my vision started going grey. I’ve blacked out from low blood pressure 3 times in my life, I really didn’t want to do it on the toilet. I’m not pulling an Elvis. So i flexed all my leg muscles and (while sitting) kind of jogged my legs in place. It got the blood back up to my brain long enough for my capillaries and heart to catch up. if a dipshit like me can do it, so can you

      • thedirtyknapkin@lemmy.world
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        1 day ago

        Yeah? Hold your hands above your heart for 5 minutes then tell me why this bag is a problem.

        The blood that goes to your feet also must go down first. Gravity is still helping it along.

  • M137@lemmy.today
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    16 hours ago

    God either has a very thick lower thumb and thin ring and pinky fingers or did a really bad job at cutting out the background of the photo. I mean none of that in a bad way, it just really sticks out. I doubt the photo was taken with a lens that warps perspective that much.