Normal Lab Values

Question 1

Normal central venous pressure

Answer 1

2 - 8 mmHg

5 - 20 cm water pressure

Question 2

Normal Pco2

Answer 2

35 - 45 mm Hg

Question 3

Normal pH

Answer 3

7.35 - 7.45

Question 4

Normal potassium

Answer 4

3.5 - 5.0 mEq/L

Question 5

Normal creatinine

Answer 5

0.7 - 1.4 mg/100 ml

Question 6

Normal urea nitrogen (BUN) evaluates renal function

Answer 6

10 - 20 mg/dL

Question 7

Normal sodium level

Answer 7

135 - 145 mEq/L

Question 8

Normal RBCs for men

Answer 8

4.6 - 6.2 million/mm3

Question 9

Normal RBCs for women

Answer 9

4.2 - 5.4 million/mm3

Question 10

Normal WBCs for adults

Answer 10

5,000 -10,000/mm3

Question 11

Normal hemoglobin for men

Answer 11

13 - 18 g/dL

Question 12

Normal hemoglobin for women

Answer 12

12 - 16 g/dL

Question 13

Normal hematocrit for men

Answer 13

42 - 52%

Question 14

Normal hematocrit for women

Answer 14

35 - 47%

Question 15

PTT (monitors effectiveness of heparin therapy)

Answer 15

Lower limit of normal 20 - 25 seconds

Upper limit (detects coagulation disorder) 32 - 39 seconds

Question 16

Platelet count (thrombocyte count) used to diagnose hemorrhagic diseases, thrombocytopenia.

Answer 16

150,000 - 450,000/mm3

Question 17

Prothrombin time PT (monitors effectiveness of Coumadin therapy)

Answer 17

9.5 - 12.0 seconds

Detects coagulation disorder 1.0

Question 18

International normalized ratio (INR) monitors effectiveness of anti coagulation therapy

Answer 18

2 - 3 for therapy in afib, dvt and pulmonary embolism.
2.5 - 3.5 for therapy in prosthetic heart valves.
50 yrs old.

Question 19

GTT

Answer 19

1 hour - 190 mg/dL
2 hours - 140 mg/dL
3 hours - 125 mg/dL

Question 20

Total cholesterol

Answer 20

150 - 200 mg / dL

Question 21

LDL

Answer 21

130 mg/dL

Question 22

HDL

Answer 22

Men 35 - 70 mg/dL

Women 35 - 85 mg/dL

Question 23

Alkaline phosphate (evaluates liver and bone function)

Answer 23

Adult 50 - 120 units/L

Question 24

Creatine kinase CK (used to diagnose acute MI)

Answer 24

MM bands present = skeletal muscle damage

Question 25

Serum albumin (used to detect protein malnutrition)

Answer 25

3.5 - 5.5 g/dL

Question 26

Triglycerides (detects risk for artherosclerosis)

Answer 26

100 - 200 mg/dL

Question 27

Normal PaO2

Answer 27

85 - 95 mm

Question 28

SaO2

Answer 28

95-99%

Question 29

HCO3

Answer 29

22 - 26 mEq/L

Question 30

Blood ammonia (arterial)

Answer 30

15 - 45 mcg/dL

Question 31

Total bilirubin

Answer 31

0.3 - 1.0 mg/dL

Question 32

Normal Magnesium

Answer 32

1.3 - 2.3 mEq/L