Donating Blood: Why an Emergency Room Cares

We do not collect blood here. Donation happens at blood centres and drives,
and this page is not trying to recruit you on our behalf.

We are on the other end of it. Transfusion is part of emergency care —
serious bleeding, major trauma, a bleed in the stomach or gullet, complicated
childbirth, some cancers and some chronic conditions. When it is needed it is
needed within minutes, which means it has to already be in the building
before anyone knows who it is for.

That is the entire argument. There is no way to produce it on demand.

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Two things about supply that are specific to here

Summer is the hard season. Donations drop when schools and colleges break up
and people travel, and demand does not drop with them. In this valley summer
is also when heat and outdoor-injury volume rises, so the gap runs the wrong
way at the worst time.

Holidays are the other one. Collections fall around late December while
road-traffic and alcohol-related injuries rise. If you are going to donate
once a year, those two windows are worth more than any other.

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What actually happens, briefly

A health check and a few questions, then the donation itself — about ten minutes
for a standard whole-blood donation, with the whole appointment usually under an
hour. Most people feel entirely normal afterwards.

Who can donate, and how often, is set by the blood centre and it changes.
Rules on medication, travel, tattoos, iron levels and prior deferrals get
updated, and plenty of people who were turned away years ago are eligible
now. Ask them rather than ruling yourself out.

If you have been told no before, it is worth asking again.

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Afterwards, with the Arizona caveat

Standard advice is to drink extra fluid, eat something, and avoid heavy exertion
for the rest of the day. Here, take the fluid part more seriously than the
leaflet implies — you have just given away volume in a climate that removes
more of it than most, and the combination is the commonest reason someone feels
faint hours later rather than at the chair.

• Drink more than you think you need, for the rest of the day.
• Skip the workout, the hike and the yard work. Tomorrow is fine.
• Do not donate and then spend the afternoon outside in summer. Book a
  morning slot and go somewhere air-conditioned afterwards.
• Get up slowly for the first few hours.

Feeling briefly light-headed, or bruising at the needle site, is common and
not a concern.

When to seek care after donating

Uncommon, and worth knowing:

• Fainting, or feeling faint that does not settle with fluids and lying down
• Bleeding from the site that will not stop with ten minutes of firm
  pressure
• Increasing pain, swelling, redness or warmth at the site after a day
• Numbness or tingling down the arm
• Chest pain or breathlessness — call 911, and do not attribute it to the
  donation

For anything mild, the blood centre is the right first call — they know
exactly what you had done and they would rather hear from you. We are here if
it is more than that, at any hour.

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El Mirage ER — open 24 hours a day, 7 days a week, 365 days a year.
12000 N El Mirage Rd, El Mirage, AZ 85335 · (480) 237-4922
Walk in. No appointment, no referral.
If this is a medical emergency, call 911.

This article is general information, not medical advice. Eligibility and
donation guidance come from your blood centre, not from us.

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Sources

The guidance in this article about when to seek emergency care is drawn
from these public sources. Each one is linked so you can read it yourself.

• MedlinePlus (National Library of Medicine) — Blood Transfusion and Donation — https://medlineplus.gov/bloodtransfusionanddonation.html

This article is general information, not a diagnosis, and it cannot account
for your history or medications. If you are unsure, call us on (480) 237-4922
or come in. If it might be an emergency, treat it as one and call 911.

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