Common Laboratory Values

Question 1

Red Blood Cell (RBC) - male, female

Answer 1

• Man: 4.6—6.2
• Woman: 4.2—5.4
• Child: 3.2—5.2

Question 2

White Blood Cell (WBC)

Answer 2

• Adult: 5,000-10,000

* Child: 5,000-13,000

Question 3

Platelets

Answer 3

o Below 100,000 signals thrombocytopenia

o 150,000-450,000 is normal

Question 4

Hemoglobin (Hgb) - male, female, pregnant

Answer 4

Man: 13—18
Woman: 12—16
Pregnant: 10—15
Child: 11—12.5

Question 5

Hematocrit (Hct)

Answer 5

Man: 42%—52%
Woman: 35%—47%
Child: 35%—45%

Question 6

Sodium (Na+)

Answer 6

135—145

Question 7

Potassium (K+)

Answer 7

3.5—5.2

Question 8

Chloride (Cl­)

Answer 8

95—105

Question 9

Calcium

Answer 9

8.5—10.9

Question 10

Magnesium (Mg)

Answer 10

1.5—2.5

Question 11

Phosphorus (P)

Answer 11

2.5—4.5

Question 12

Normal Urine Volume

Answer 12

1,000—2,000 mL/day

30 mL/hour

Question 13

urine Specific Gravity

Answer 13

1.010—1.020

Question 14

urine pH

Answer 14

4.5—8

Question 15

is there supposed to be glucose in urine?

Answer 15

none

Question 16

is there supposed to be protein in urine?

Answer 16

none

Question 17

Glucose

Answer 17

Adults: 70—110

Question 18

Blood Urea Nitrogen (BUN)

Answer 18

Adults: 10-20
Child: 5—20
Infant: 5—15

Question 19

Serum Creatinine

Answer 19

0.6—1.35 mg/dL

Question 20

Albumin

Answer 20

3.5—5.5 g/dL

Question 21

Uric Acid

Answer 21

3.5—7.5 mg/dL

Question 22

Prothrombin Time (PT)

Answer 22

9.5-12.0 seconds

Question 23

Partial Thromboplastin Time (PTT)

Answer 23

25—35 sec

therapeutic range is 1.5-2 times normal

Question 24

International Normalized Ratio (INR)

Answer 24

0.8—1.2

o 1.0 is normal
o 2-3 ideal if client has hx of a fib, DVT, PE
o 2.5-3.5 if client has prosthetic heart valve

Question 25

Activated Partial Thromboplastin Time (aPTT)

Answer 25

1.5—2.5

Question 26

Fibrinogen

Answer 26

203—377

Question 27

Total Cholesterol

Answer 27

Ideal: below 200 Borderline: 200—240 High: above 240

Question 28

Triglycerides

Answer 28

Normal: below 150 Borderline high: 150—199 High: 200—499 Very high: above 500

Question 29

SGOT (AST)

Answer 29

10 to 40 units per liter

Question 30

SGPT (ALT)

Answer 30

10 to 40 units per liter

Question 31

Troponin (CTN­1 or CTN­T)

Answer 31

Normal I: 0.03 Critical level I: above 1.5 Critical level T: 0.2

Question 32

C­reactive protein

Answer 32

Below 0.8 mg/dL

Question 33

Creatinine Kinase (CK­MB)

Answer 33

0—3 mcg/L

Question 34

pH

Answer 34

7.35—7.45

Question 35

Partial Pressure of CO2 (pCO2)

Answer 35

35—45 mmHg

Question 36

Partial Pressure of O2 (pO2)

Answer 36

80—100 mmHg

Question 37

Bicarbonate (HCO3)

Answer 37

22—26 mEq/L

Question 38

Oxygen Saturation (SaO2)

Answer 38

95—100%

Question 39

Thyroid­ Stimulating Hormone (TSH)

Answer 39

Adults: 0.2—5.4 Neonate: 3—20

Question 40

Therapeutic Serum Drug Level: Carbamazepine (Tegretol)

Answer 40

4—10 mcg/mL

Question 41

Therapeutic Serum Drug Level: Digoxin (Lanoxin)

Answer 41

0.8—2.0 ng/mL

Question 42

Therapeutic Serum Drug Level: Lithium (Eskalith)

Answer 42

0.8—1.5 mEq/L

Question 43

Therapeutic Serum Drug Level: Phenobarbital (Solfoton)

Answer 43

15—40 mcg/mL

Question 44

Therapeutic Serum Drug Level: Theophylline (Aminophylline)

Answer 44

10—20 mcg/mL

Question 45

Therapeutic Serum Drug Level: Valproic Acid (Depakene)

Answer 45

50—100 mcg/mL

Question 46

GTT

Answer 46

* Fasting Normal: 60-110 mg/dL * After 1 Hour: 190 mg/dL * After 2 Hours: 140 mg/dL * After 3 Hours: 125 mg/dL

Question 47

Bilirubin

Answer 47

0.3 - 1 mg/dL

Question 48

Ammonia

Answer 48

15-45

Question 49

Normal CVP

Answer 49

2-6 mm Hg > 6 = hypervolemia

Question 50

Hemoglobin A1C

Answer 50

Normal: 4—5.6% 6.5% or higher indicates diabetes

Question 51

Serum osmolarity

Answer 51

275-295 low = hyponatremia high = hypernatremia, diabetes insipidus, hyperglycaemia

Question 52

Normal IOP tonometer reading to detect glaucoma

Answer 52

10-21 mm Hg

Question 53

BP 90/60 and apical pulse of 120 indicate

Answer 53

shock

Question 54

If client has elevated BUN and elevated Na, check for

Answer 54

confusion and tachycardia