Reference Ranges

Question 1

Formula for Absorbance

Answer 1

2 - log%T

Question 2

Units for Molar Absorptivity

Answer 2

L/(mol x cm)

Question 3

Ref: Serum Osm

Answer 3

280 - 300 mmol/kg

Question 4

Ref: Osmol Gap

Answer 4

<10 mmol/kg

Question 5

Formula for Osmolal Gap

Answer 5

Osmolal gap (mOsm/kg) = Measured osmolality (mOsm/kg) - Calculated osmolality (mmol/L)

Question 6

Formula for Calculated Osmolality

Answer 6

[2Na+] + [glucose] + [urea] = mmol/L

Question 7

Ref: pH

Answer 7

7.35 - 7.45

Question 8

Ref: pCO2

Answer 8

35 - 45 mm Hg

Question 9

Ref: pO2

Answer 9

70 - 90 mm Hg

Question 10

Ref: HCO3-

Answer 10

20 -27 mmol/L

Question 11

Ref: Sodium

Answer 11

133 - 146 mmol/L

Question 12

Sodium Crit

Answer 12

<125 OR >155 mmol/L

Question 13

Ref: Potassium

Answer 13

3.5 - 5.0 mmol/L

Question 14

Potassium Crit

Answer 14

<2.6 OR >6.2 mmol/L

Question 15

Ref: Chloride

Answer 15

96 - 109 mmol/L

Question 16

Ref: Calcium

Answer 16

2.10 - 2.60 mmol/L

Question 17

Calcium Crit

Answer 17

<1.65 OR >3.25 mmol/L

Question 18

Ref: Magnesium

Answer 18

0.70 - 1.00 mmol/L

Question 19

Magnesium Crit

Answer 19

<0.40 OR >1.90 mmol/L

Question 20

Ref: Phosphorus (phosphate)

Answer 20

0.80 - 1.45 mmol/L

Question 21

Phosphorus Crit

Answer 21

<0.40 mmol/L

Question 22

Ref: Anion Gap

Answer 22

4 - 16 mmol/L

Question 23

Ref: Osmolality (serum)

Answer 23

280 - 300 mmol/kg

Question 24

Ref: Osmolal gap

Answer 24

<10 mOsm/kg

Question 25

Ref: Serum total protein

Answer 25

64 - 84 g/L

Question 26

Ref: Serum albumin

Answer 26

30 - 45 g/L

Question 27

Ref: 24 hr Urine Total Protein

Answer 27

<0.5 g/volume

Question 28

Ref: CSF total protein

Answer 28

0.15 - 0.45 g/L

Question 29

Ref: ALP

Answer 29

Female: 30 -130
Male: 30 - 130

Question 30

Ref: LD

Answer 30

Female: 100 - 225
Male: 100 - 225

Question 31

Ref: ALT

Answer 31

Female: <40
Male: <60

Question 32

Ref: AST

Answer 32

Female: <35
Male: <45

Question 33

Ref: CK

Answer 33

Female: <200
Male: <250

Question 34

Ref: GGT

Answer 34

Female: <80
Male: <80

Question 35

Ref: AMY

Answer 35

Female: 30 - 150
Male: 30 - 150

Question 36

Ref: LIP

Answer 36

Female: 0 - 60
Male: 0 - 60

Question 37

Ref: urine pH

Answer 37

4.5 - 8.0

Question 38

Ref: Urobilinogen

Answer 38

< 16 μmol/L

Question 39

Ref: SG

Answer 39

1.005 - 1.030

Question 40

Ref: Iron

Answer 40

8-35 μmol/L

Question 41

Ref: TIBC

Answer 41

40-75 μmol/L

Question 42

Ref: Saturation Index

Answer 42

Female: 0.12 - 0.60

Male: 0.10 - 0.55

Question 43

Ref: Ferritin

Answer 43

Female: 20 - 300 μg/L

Male: 30 - 500 μg/L

Question 44

Ref: Transferrin

Answer 44

1.8 - 4.5 g/L

Question 45

Ref: Total bilirubin

Answer 45

<20 μmol/L

Question 46

Ref: Conjugated (direct) bilirubin

Answer 46

<7 μmol/L

Question 47

Ref: eGFR

Answer 47

Female: 40-100 μmol/L

Male: 50-120 μmol/L

Question 48

Ref: Creatinine Clearance

Answer 48

1.30 - 2.30 mL/ sec/ 1.73 m2

Question 49

Ref: ACR (albumin: creatinine ratio)

Answer 49

<3 mg/mmol

Question 50

Ref: Ammonia (plasma)

Answer 50

<35 μmol/L

Question 51

Critical: Ammonia (plasma)

Answer 51

> 199 μmol/L

Question 52

Ref: Creatinine

Answer 52

Female: 40-100 μmol/L

Male: 50-120 μmol/L

Question 53

Ref: Urea

Answer 53

2.5 - 8.0 mmol/L

Question 54

Ref: Uric Acid (urate)

Answer 54

Female: 150 - 400 mol/L

Male: 200 - 500 mol/L

Question 55

Crit: PLT

Answer 55

inpatient: <10 x10^9/L
outpatient: <20 x10^9/L

Question 56

Crit: PTT

Answer 56

> 120 sec

Question 57

Ref: Hct

Answer 57

Hct <0.55