Lab Ref Values

Question 1

Hgb: Newborn

Answer 1

16-23 g/dL

Question 2

Hgb: Kids

Answer 2

10-14 g/dL

Question 3

Hgb: Adult females

Answer 3

12-15 g/dL

Question 4

Hgb: Adult males

Answer 4

13-17 g/dL

Question 5

Microhematocrit: Newborn

Answer 5

51-61%

Question 6

Microhematocrit: 1yr

Answer 6

32-38%

Question 7

Microhematocrit: 6yrs

Answer 7

34-42%

Question 8

Microhematocrit: adult females

Answer 8

36-48%

Question 9

Microhematocrit: adult males

Answer 9

42-52%

Question 10

RBC counts: newborn

Answer 10

5.0-6.3 million/microL

Question 11

RBC counts: adult females

Answer 11

4.0-5.5 million rbcs/microL

Question 12

RBC counts: adult males

Answer 12

4.5-6.0 million rbcs/microL

Question 13

WBC counts: newborn

Answer 13

9.0-30.0 thousand wbcs/mcL

Question 14

WBC counts: 1yr

Answer 14

6.0-14.0 thousand wbcs/mcL

Question 15

WBC counts: 6yr

Answer 15

4.5-12.0 thousand wbcs/mcL

Question 16

WBC count: adult

Answer 16

4.5-11.0 thousand wbcs/mcL

Question 17

Platelet count:

Answer 17

1.5-4.0 x 10 to the 5th platelets/mcL

150,000-400,000

Question 18

White cell diff count: Segs

1 month:

6 yr:

12yr:

Adult:

Absolute cell counts(cells/mcL):

Answer 18

White cell diff count: Segs

1 month: 15-35%

6 yr: 45-50%

12yr: 45-50%

Adult: 50-65%

Absolute cell counts(cells/mcL): 2250-7150

Question 19

White cell diff count: bands

1 month:

6 yr:

12yr:

Adult:

Absolute cell counts(cells/mcL):

Answer 19

White cell diff count: bands

1 month: 7-13%

6 yr: 0-7%

12yr: 6-8%

Adult: 0-7%

Absolute cell counts(cells/mcL): 0-770

Question 20

White cell diff count: Eos

1 month:

6 yr:

12yr:

Adult:

Absolute cell counts(cells/mcL):

Answer 20

White cell diff count: Eos

1 month: 1-3%

6 yr: 1-3%

12yr: 1-3%

Adult: 1-3%

Absolute cell counts(cells/mcL): 45-330

Question 21

White cell diff count: Baso

1 month:

6 yr:

12yr:

Adult:

Absolute cell counts(cells/mcL):

Answer 21

White cell diff count: Baso

1 month: 0-1%

6 yr: 0-1%

12yr: 0-1%

Adult: 0-1%

Absolute cell counts(cells/mcL): 0-110

Question 22

White cell diff count: Mono

1 month:

6 yr:

12yr:

Adult:

Absolute cell counts(cells/mcL):

Answer 22

White cell diff count: Mono

1 month: 5-8%

6 yr: 4-8%

12yr: 3-8%

Adult: 3-9%

Absolute cell counts(cells/mcL): 135-990

Question 23

White cell diff count: lymph

1 month:

6 yr:

12yr:

Adult:

Absolute cell counts(cells/mcL):

Answer 23

White cell diff count: lymph

1 month: 40-70%

6 yr: 40-45%

12yr: 35-40%

Adult: 25-40%

Absolute cell counts(cells/mcL): 1125-4400

Question 24

White cell diff CT: platelets

Answer 24

An average of 7-20 platelets per OIF

Question 25

MCV

Answer 25

80-98fL

Question 26

MCH

Answer 26

27-32pg

Question 27

MCHC

Answer 27

32-37%

Question 28

Retic: newborn

Answer 28

2.5-6.5%

Question 29

Retic: adult

Answer 29

0.5-1.5%

Question 30

ESR: Wintrobe method (1hr) Females Males

Answer 30

Females: 0-20 mm/hr Males: 0-9 mm/hr

Question 31

ESR: 1hr Sediplast ESR Males: <50, >50

Answer 31

Males: <50: 0-15 mm/hr >50: 0-20 mm/hr

Question 32

ESR: 1hr Sediplast ESR Females: <50, >50

Answer 32

Females: <50: 0-20 mm/hr >50: 0-30 mm/hr

Question 33

ESR: ZSR Normal: Borderline: Elevated:

Answer 33

Normal: 40-51% Borderline: 51-54% Elevated: greater than equal 55%

Question 34

MCV calculation

Answer 34

HCT x 10/RBC

Question 35

MCH calculation

Answer 35

HGB x 10/RBC

Question 36

MCH calculation

Answer 36

HGB x 100/HCT

Question 37

Retic % calculation

Answer 37

Retics per 1,000 RBCs/10

Question 38

Retic % Miller disc calculation

Answer 38

Retic squareA x 100/RBC squareB x9

Question 39

Absolute retic count/ARC

Answer 39

Retic % x RBC x 1,000/100

Question 40

Corrected retic count

Answer 40

Retic % x HCT/45

Question 41

RPI: retic production index

Answer 41

Corrected retic count/ maturation time correction factor

Question 42

Rules of three: HGB... HCT...

Answer 42

RBC x 3 = HGB +- 0.5 HGB x 3 = HCT +- 3%

Question 43

Manual cell count

Answer 43

Cells per mm3= #cells x DF(10) x recip dilution x recip area

Question 44

Absolute WBC

Answer 44

Total WBC x relative count

Question 45

Corrected WBC

Answer 45

Uncorrected WBCx100/ 100+NRBCs per 100 WBCs