Hemocytometrie
- Tellen aantal cellen bloed: microscoop/automatische cellenteller (detector)
- Momentopname
- Enkel circ pool (niet marginale: plakken tegen bv wand) w geteld
- Afh van inflow uit bm, outflow in weefsels
- Geen afwijkende cellen
Flowcytometrie
- Vervolgoz bij afwijkend resultaat hemocytometrie
- Fluorochroom: fluorescerend Ab tegen CD-merkers
- Laserstraal => fluorescent signaal
- X-as: aspecificiteit = 1-specificiteit = False pos rate
- Y-as: sensitiviteit = true pos rate
- Cut-off point : optimale performantie
o Hoog: hoge sens, lage spec
- Non-sense test
o 1e bissectrice => AUC: 0,5-1
3: laboratoriumanalyse
Pre-analytische fase
- Meeste fouten tijdens deze fase
Biologische variabiliteit
- Tijdstip afname
o Bv cortisol: ’s ochtends >>> ’s avonds
- Lichaamshouding
o Liggend (15 min)
o Groot verschil tuss liggen en rechtstaan bij plasma eiw
- Voedselinname
o Maaltijd: TG’s (=> troebel serum), bilirubine, fosfor, glucose, WBC ↗
- Roken
o Leukocytose
o Glycemie, CEA waarde, alfa-1-antitrypsine ↗
- Fysische activiteit
o WBC + spierenzymen (LDH, ALT, CK) ↗
o Oudere mannen: fietsen => PSA ↗
- Zwangerschap
o Hemodilutie: hematocriet + eiwitgehalte + ijzer ↘
o Alkalische fosfatase (placenta) + zs hormonen ↗
Bloedafname
- !te veel stuwing => lactaat + kalium ↗
- Serum
o Plasma - stollingsfactoren
o Geen anticoagulantia
o Stollingsactivatoren: bloed eerst stollen (20-30min) voor centrifugatie
o Separatorgel: tuss serum en cellen
o Routine biochemische bepalingen
- Lithium-heparine
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller bronywiedeman. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.15. You're not tied to anything after your purchase.