PCV
RBC Indices
RBC morphology
Stains / smears
Formulas
100

What is the layer above the red blood cells and below plasma called and what does it tell you about patient?

Its the buffy coat layer and correlates to the white blood cells

100

Which indice measures weight of the red cells?

MCH

100

what three things do we always report for rbc morphology?

size shape and color

100
Why do we look at blood smears

morphology, platelet estimate and differential

100

RBC estimate

PCV / 6

200

Red plasma indicates what?

Hemolysis caused by trauma

200

Which indices correlates to size of the red blood cells?

MCV

200

What artifact is seen with prolonged exposure to EDTA

crenation

200

Name some things to help maintain stain integrity

do not add old to new, separate stains, clean and replace regularly

200

HgB Estimate

PCV / 3

300
An increased PCV with an increased TP tells you what
The patient is dehydrated
300

What terminology would go with a decreased MCV

microcytic

300

What abnormal cells are also reported by percentage?

heniz bodies, ecchinocytes, schistocytes, spherocytes

300

Why do we prefer coverslip smears over push smears?

Even distribution

Less damage of cells

300

MCV

PCV x 10 / rbc

400
Which hemaocrit tube should be used when pulling blood directly from the patient?

Heparnized

400

What terminology would go with a decreased MCHC?

Hypochromic

400

When you see ecchinocytes, what might have occured?

snake bite

400

Diff Quick is what type of stain

Romanowski

400

MCH

HgB x 10 / RBC

500

A decreased PCV and a decreased TP could indicate what?

Bleeding

500

What abnormal rbc finding might be happening if you see an increased MCH and MCHC?

heinz bodies

500

Which abnormal rbc finding is associated with IMHA

spherocytes

500

Why can we not do morphology when using NMB

it only stains nucleus - not whole cell

500

MCHC

HgB x 100 / PCV

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