Haematology

Question 1

RBC: Frequently tested (4)

Answer 1

Haemoglobin (Hb)
Red Blood Cell Count (RBCC)
Haematocrit (Hct)
Mean Cell Volume (MCV)

Question 2

Four major areas of interest (4)

Answer 2

RBC
WBC
Coagulation
Blood transfusion

Question 3

Haemoglobin (Hb)

Answer 3

M: 13.3-16.7 g/dL
F: 11.8-14.8 g/dL

protein than carries oxygen

Question 4

Red blood cell count (RBCC)

Answer 4

amount RBC in the blood

Question 5

Haematocrit (Hct)

Answer 5

percentage of whole blood taken up by RBC

Question 6

Mean cell volume (MCV)

Answer 6

80-98 fL

the size of the average RBC

Question 7

Mean cell haemoglobin (MCH)

Answer 7

used less often

average amount of haemoglobin in the average cell

Question 8

Mean cell haemoglobin concentration (MCHC)

Answer 8

used less often

average concentrationn of haemoglobin inside the average sized cell

Question 9

non-specific (2)

Answer 9

ESR = fall in level of RBC (time)

Plasma viscosity = how thick/thin plasma has become

Question 10

WBC (leukocyte) function

Answer 10

defend from infections

Question 11

WBCC

Answer 11

3.7-9.5 x10^9 L

Question 12

WBCC differential

Answer 12

the proportion of different types of WBCs

Question 13

4 types WBC

Answer 13

phagocyte/neutrophils - defend
B-lymphocytes - make antibodies
T-lymphocytes - attack infected cells
monocytes - defend from infection

Question 14

Platelets

Answer 14

143-400 x10^9 L

form a clot by binding to site of damage

Question 15

Fibrinogen

Answer 15

1.5-4 gL

protein crucial in clot formation

Question 16

Prothrombin time

Answer 16

time taken for clot to form

Question 17

International normalised ratio (INR)

Answer 17

ratio between time blood clots normally compared to time to clot with warfarin

Question 18

coagulation importance

Answer 18

to precent excessive blood loss

Question 19

thrombosis

Answer 19

the process of blood clotting