Reference laboratory values

Question 1

Red blood cell count (RBC)

Answer 1

female: 3.8–5.2 T/L
male: 4.4–5.5 T/L

Question 2

Hemoglobin (HGB)

Answer 2

female: 120–165 g/L
male: 135–170 g/L

Question 3

Mean corpuscular volume (MCV)

Answer 3

80–95 fL

Question 4

Mean corpuscular hemoglobin (MCH)

Answer 4

28–33 pg

Question 5

Mean corpuscular hemoglobin concentration (MCHC)

Answer 5

320–360 g/L

Question 6

Erythrocyte sedimentation rate (ESR, Westergren)

Answer 6

<20 mm/h

Question 7

Reticulocyte count (relative to RBC)

Answer 7

0.5–2.0%

Question 8

Platelet count (PLT)

Answer 8

150–400 g/L

Question 9

White blood cell count (WBC)

Answer 9

4–10 g/L

Question 10

Differential blood count:

neutrophil, juvenile (metamyelocyte)

Answer 10

0–1 %

Question 11

Differential blood count:

neutrophil, band

Answer 11

3–5%

Question 12

Differential blood count:

neutrophil, segment

Answer 12

50–70%

Question 13

Differential blood count:

eosinophil

Answer 13

2–4%

Question 14

Differential blood count:

basophil

Answer 14

0–1%

Question 15

Differential blood count:

monocyte

Answer 15

2–6%

Question 16

Differential blood count:

lymphocyte

Answer 16

20–40%

Question 17

Bleeding time

Answer 17

4–6 min.

Question 18

Prothrombin time (PT, INR)

Answer 18

0.8–1.2 min.

Question 19

aPTT (activated partial thromboplastin time)

Answer 19

35–45 s.

Question 20

Thrombin time

Answer 20

20–22 s.

Question 21

Fibrinogen

Answer 21

1.5–4.0 g/L

Question 22

Inorganic components in serum/plasma:

SODIUM

Answer 22

135–145 mmol/L

Question 23

Inorganic components in serum/plasma:

POTASSIUM

Answer 23

3.5–5.0 mmol/L

Question 24

Inorganic components in serum/plasma:

CALCIUM

Answer 24

2.2–2.6 mmol/L

Question 25

Inorganic components in serum/plasma:

CHLORIDE

Answer 25

95–105 mmol/L

Question 26

Inorganic components in serum/plasma:

IRON

Answer 26

female: 11–30 μmol/L
male: 12–36 μmol/L

Question 27

Inorganic components in serum/plasma:

TIBC (total iron binding capacity)

Answer 27

female: 45–70 μmol/L
male: 50–80 μmol/L

Question 28

Metabolites in serum/plasma:

BILIRUBIN:

• Total
• Direct reacting

Answer 28

Total: < 17 μmol/L

Direct reacting: < 5 μmol/L

Question 29

Metabolites in serum/plasma:

GLUCOSE (fasting)

Answer 29

3.0–6.0 mmol/L

Question 30

Metabolites in serum/plasma:

URIC ACID

Answer 30

150–400 μmol/L

Question 31

Metabolites in serum/plasma:

CARBAMID

Answer 31

3.5–7.0 mmol/L

Question 32

Metabolites in serum/plasma:

CREATININ

Answer 32

40–130 μmol/L

Question 33

Metabolites in serum/plasma:

CHOLESTEROL (total)

Answer 33

3.6–5.2 mmol/L

Question 34

Metabolites in serum/plasma:

HDL- cholesterol

Answer 34

1.0–1.6 mmol/L

Question 35

Metabolites in serum/plasma:

TRIGLYCERIDES

Answer 35

0.8–2.3 mmol/L

Question 36

Proteins in serum/plasma:

TOTAL PROTEIN

Answer 36

60–80 g/L

Question 37

Proteins in serum/plasma:

ALBUMIN

Answer 37

35–50 g/L

Question 38

Proteins in serum/plasma:

A/G (albumin/ globulin quotient)

Answer 38

1.25–2.5

Question 39

Proteins in serum/plasma:

CRP (C reactive protein)

Answer 39

1–8 mg/L

Question 40

Enzyme activities in serum/plasma:

alfa- amylase

Answer 40

< 180 U/L

Question 41

Enzyme activities in serum/plasma:

ALAT (alaninaminotransferase,
GPT)

Answer 41

< 45 U/L

Question 42

Enzyme activities in serum/plasma:

ASAT (aspartateaminotransferase,
GOT)

Answer 42

< 45 U/L

Question 43

Enzyme activities in serum/plasma:

ALP (alkaline phosphatase)

Answer 43

< 150 U/L

Question 44

Enzyme activities in serum/plasma:

CK (creatinkinase)

Answer 44

< 200 U/L

Question 45

Enzyme activities in serum/plasma:

GGT (gammaglutamyltranspeptidase)

Answer 45

< 60 U/L

Question 46

Enzyme activities in serum/plasma:

LDH (lactatedehydrogenase)

Answer 46

< 160 U/L

Question 47

pH (arterialized capillary blood)

Answer 47

7.35–7.45

Question 48

pCO2 (arterialized capillary blood)

Answer 48

35–45 mmHg

Question 49

standard bicarbonate (st HCO–
3) 

(arterialized capillary blood)

Answer 49

21–26 mmol/L

Question 50

BE (base excess)

arterialized capillary blood

Answer 50

0±3 mmol/L

Question 51

pO2 (arterialized capillary blood)

Answer 51

80–105 mmHg

Question 52

O2Sat (arterialized capillary blood)

Answer 52

95–98 %

Question 53

Creatinineclearance

for 1.73 m2 body surface

Answer 53

120–125 ml/min

Question 54

Urine volume

Answer 54

1000–1500 ml/24 h

Question 55

pH (renal function and urinalysis)

Answer 55

4.5–8.0

Question 56

“specific gravity” (density)

renal function and urinalysis)

Answer 56

1.010–1.035 kg/L

Question 57

Osmolar concentration

Answer 57

600–1200 mosm/kg

Question 58

Urinary sediment (per field)

Answer 58

<1–3 RBC, <3–5 WBC

Question 59

Usual chart speed (ECG)

Answer 59

25 mm/s

Question 60

AV conduction time (PR interval)

Answer 60

1 mm ~ 0,04 s.

Question 61

Width of the QRS complex

Answer 61

0.12–0.2 s.

Question 62

pathological Q wave:
width:
amplitude:

Answer 62

width: ≥ 0.04 s.
amplitude: > 0.4 mV or > 25% of the R amplitude

Question 63

P (peta)

Answer 63

10^15

Question 64

T (tera)

Answer 64

10^12

Question 65

G (giga)

Answer 65

10^9

Question 66

M (mega)

Answer 66

10^6

Question 67

k (kilo)

Answer 67

10^3

Question 68

m (milli)

Answer 68

10^-3

Question 69

μ (micro)

Answer 69

10^-6

Question 70

n (nano)

Answer 70

10^-9

Question 71

p (pico)

Answer 71

10^-12

Question 72

f (femto)

Answer 72

10^-15