Lab Values

Question 1

WBCs (leukocytes)

Answer 1

4,000-10,000 /mm^3

Critical: <2,500 or >30,000

Question 2

RBCs (erythrocytes)

Answer 2

3.5-5.5 x 10^6 /uL

Question 3

Hgb

Answer 3

12-15 g/dL

Critical: <5 or >20

Question 4

Hct

Answer 4

36-48%

Critical: <15 or >60

Question 5

MCV (mean corpuscular volume)

Answer 5

80-100 mm^3

Question 6

RDW (red blood cell distribution width)

Answer 6

11.5-16.9%

Question 7

Plt

Answer 7

150,000-400,000 /mm^3

Critical: <50,000 or >1,000,000

Question 8

WBC differential

Answer 8

Neutrophils    50-70%
Lymphocytes 20-40%
Monocytes       2-8%
Eosinophils      0-5%
Basophils         0-2%

Question 9

BMP (basic metabolic panel)

Answer 9

glucose, BUN, creatinine, Na, K, Cl, HCO3, Ca

Question 10

Glucose

Answer 10

70-100 mg/dL

Critical:
<50 or >400 males
<40 or >400 females

Question 11

BUN

Answer 11

6-21 mg/dL

Critical: >100

Question 12

Creatinine

Answer 12

0.44-1.03 mg/dL

Critical: >4

Question 13

Na

Answer 13

135-145 mEq/L

Critical: <120 or >160

Question 14

K

Answer 14

3.5-5.0 mEq/L

Critical: <2.5 or >6.5

Question 15

Cl

Answer 15

96-106 mEq/L

Critical: <80 or >115

Question 16

HCO3

Answer 16

22-28 mEq/L

Critical: <6

Question 17

Ca

Answer 17

Normal
Total: 8.5-10.2 mg/dL
Ionized: 4.64-5.28

Critical
Total: <6 or >13
Ionized: <2.2 or >7

Question 18

Albumin

Answer 18

3.5-5.5 g/dL

Question 19

Total Protein

Answer 19

6.4-8.3 g/dL

Question 20

ALP (alkaline phosphatase)

Answer 20

44-147 units/L

Question 21

ALT (alanine aminotransferase)

Answer 21

7-56 international units/L @37 degrees

Question 22

AST (aspartate aminotransferase)

Answer 22

10-40 units/L

Question 23

Tbili (bilirubin)

Answer 23

0.3-1.0 mg/dL

Critical: >12

Unconjugated: 0.2-0.8
Conjugated: 0.1-0.4

Question 24

Coags

Answer 24

PT 11-15 sec
INR 1.0-1.5
PTT 30-50 sec

Question 25

ANC (absolute neutrophil count)

Answer 25

> 1500

neutropenia: ANC<500

Question 26

UA

Answer 26

pH 4.6-8
protein 0-8 mg/dL
Specific gravity 1.005-1.030

Question 27

CSF

Answer 27

opening pressure <20 cmH20
Neutrophils 0-6%
Lymphocytes 40-80%
Monocytes 15-45%
Protein 15-45 mg/dL
Glucose 50-75 mg/dL
or
60-70% blood levels

Question 28

Pleocytosis

Answer 28

turbidity (cloudy) of CSF from increased # cells