Formules

Question 1

Force de la centrifuge:

Answer 1

RCF = N² x r x 1.118 x 10^-5

N = vitesse (RPM)

r = rayon (cm)

Question 2

LDL.

Answer 2

LDL = chol total - (HDL + trig/2.2)

Question 3

Ajustement de la quantité de citrate dans le tube:

Answer 3

Coagulatn requis = (1.0-Hct/5.9-Hct) x volume total du tube

Question 4

Trou osmolaire

Question 5

Rf (chromatographie)

Answer 5

Rf = distance entre origine et centre de migration (tache) / distance entre origine et front du solvant

Question 6

Règle de 3 en hémato

Answer 6

3 x GR = Hgb

3 x Hgb = Hct

Question 7

Saignement foeto-maternel:

Answer 7

volume hémorragie = # GR foetaux X volume sang maternel (5000 ml) / # GR total comptés

? ml/30ml = ? vial

si 1.6 = 2 + 1 = 3 vial

si 3.4 = 3 + 1 = 4 vial

Question 8

INR

Answer 8

INR = (TQ patient/TQ normal) ^ISI

Question 9

Coefficient de variation

Answer 9

Question 10

Ecart type:

Answer 10

Question 11

pH

Answer 11

pH = HCO3 (métabolique) / pCO2 (respiratoire)

Question 12

VGM

Answer 12

VGM = Hct / # GR

Question 13

TGMH

Answer 13

TGMH = Hgb / # GR

Question 14

CGMH

Answer 14

CGMH = hgb / hct

Question 15

% saturation de transferrine:

Answer 15

% saturation = 100 x fer serique / TIBC

Question 16

Compte GB avec hématimètre:

Answer 16

GB = # GB (moyenne) x dilution (100) x 10⁶

^{—————————————————————————}

Volume (0.9 mm³)

Question 17

Henderson-Hasselbach

Answer 17

pH = pka + log [HCO3]

————

[H2CO3]

pH = pka + log [HCO3]

————

a pCO2

a = 0.0301

Question 18

colonies dans l’urine

Answer 18

/ml d’urine: # colonies comptés x 1ml

——————————————

dilution

Question 19

rétics avec disque de Miller:

Answer 19

x = # rétics dans carré A

———————————

GR dans carré B x 9

valeur absolue = x X # GR/L

Question 20

Trou anionique

Answer 20

Trou anionique = (Na + K) - (Cl + HCO3)

Question 21

Beer-Lambert

Answer 21

Ci_nconnu = A_inconnu X C_std

————

A_std

Question 22

Longeur

Answer 22

1 pouce = 2.54 cm

Question 23

Poids

Answer 23

1kg = 2.2 lbs

Question 24

GR nucléées

Answer 24

WBC corrigé = WBC X 100

———

100 + NRBC

Question 25

Osmolalité

Answer 25

mOsm/kg = (1.86 x Na) + glucose + urée + 9

Question 26

Surface corporelle:

Answer 26

s = H(cm) + P(kg) - 0.6

———————

100

Question 27

Clairance renal

Answer 27

U = concentration de créatinine dans l’urine

V = volume urinaire/s

P = concentration de créatitine dans le plasma