this post was submitted on 19 Jun 2026
96 points (100.0% liked)
Canada
12081 readers
606 users here now
What's going on Canada?
Related Communities
🍁 Meta
🗺️ Provinces / Territories
- Alberta
- British Columbia
- Manitoba
- New Brunswick
- Newfoundland and Labrador
- Northwest Territories
- Nova Scotia
- Nunavut
- Ontario
- Prince Edward Island
- Quebec
- Saskatchewan
- Yukon
🏙️ Cities / Local Communities
- Anmore (BC)
- Burnaby (BC)
- Calgary (AB)
- Comox Valley (BC)
- Edmonton (AB)
- East Gwillimbury (ON)
- Greater Sudbury (ON)
- Guelph (ON)
- Halifax (NS)
- Hamilton (ON)
- Kingston (ON)
- Kootenays (BC)
- London (ON)
- Mississauga (ON)
- Montreal (QC)
- Nanaimo (BC)
- Niagara Falls (ON)
- Niagara-on-the-Lake (ON)
- Oceanside (BC)
- Ottawa (ON)
- Port Alberni (BC)
- Regina (SK)
- Sarnia (ON)
- Saskatoon (SK)
- Squamish (BC)
- Thunder Bay (ON)
- Toronto (ON)
- Vancouver (BC)
- Vancouver Island (BC)
- Victoria (BC)
- Waterloo (ON)
- Whistler (BC)
- Windsor (ON)
- Winnipeg (MB)
Sorted alphabetically by city name.
🏒 Sports
Baseball
Basketball
Curling
Hockey
- Main: c/Hockey
- Calgary Flames
- Edmonton Oilers
- Montréal Canadiens
- Ottawa Senators
- Toronto Maple Leafs
- Vancouver Canucks
- Winnipeg Jets
Soccer
- Main: /c/CanadaSoccer
- Toronto FC
💻 Schools / Universities
- BC | UBC (U of British Columbia)
- BC | SFU (Simon Fraser U)
- BC | VIU (Vancouver Island U)
- BC | TWU (Trinity Western U)
- ON | UofT (U of Toronto)
- ON | UWO (U of Western Ontario)
- ON | UWaterloo (U of Waterloo)
- ON | UofG (U of Guelph)
- ON | OTU (Ontario Tech U)
- QC | McGill (McGill U)
Sorted by province, then by total full-time enrolment.
💵 Finance, Shopping, Sales
- Personal Finance Canada
- Buy Canadian
- BAPCSalesCanada
- Canadian Investor
- Canadian Skincare
- Churning Canada
- Quebec Finance
- Canada Grown Business
🗣️ Politics
- General:
- Federal Parties (alphabetical):
- By Province (alphabetical):
🍁 Social / Culture
- 2 North American 4 You (Shitposting & Memes, North America focus)
- Ask a Canadian
- Bières Québec
- Canada Francais
- Canadian Gaming
- Eh Buddy Hoser (Shitposting & Memes, Canada focus)
- EhVideos (Canadian video media)
- First Nations
- First Nations Languages
- Indigenous
- Inuit
- Logiciels libres au Québec
- Maple Music (music)
Rules
- Keep the original title when submitting an article. You can put your own commentary in the body of the post or in the comment section.
Reminder that the rules for lemmy.ca also apply here. See the sidebar on the homepage: lemmy.ca
founded 5 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Ah gotcha! thanks, I didn't realize there was a "return" stream.
There's only one needle. So the machine works in multiple suck-return cycles (separation happens simultaneously during return). Roughly every 5-10 minutes. The final return will include a bag of saline to replace the plasma they took.
Which is why one or two warnings are not usually a major concern, as long as the following cycles are okay. But usually after 3 (in my personal experience), they just say, "not your day, come back in two weeks hey?"
That's interesting. is a one-needle cycle better than say a two needle loop for safety or efficiency?
From the receiving end of the needle, having two streams would likely double the chance of errors happening. Even the best phlebotomist has a bad day. Also, veins often move when you try to stab them.
Not to mention any blood-related equipment are single-use. So the needle, tubes, containers, they all go to a special bin (I hope to be recycled). Doubling up would unnecessarily increase the cost/effort.
I would highly recommend going to your nearest centre and learn by donating yourself! 😀