Lab Values

Question 1

Hemoglobin (Hgb)

Answer 1

Male: 14-18
Female: 12-16

Notes:

• Critical Values <5
• Elderly amount slightly decreases, not due to iron deficiency

Question 2

Hematocrit (Het)

Answer 2

Male: 42-52
Female: 37-47

Notes:
*Critical value <15

Question 3

Red Blood Cell (RBC)

Answer 3

Male: 4.7-6.1
Female: 4.2-5.4

Question 4

White Blood Cell (WBC)

Answer 4

Both genders: 5,000-10,000mm^3

Notes:
*24-48 hr postpartum: a count as high as 25,000 is normal

Question 5

Platelet Count (PLT)

Answer 5

Both genders: 150,000-400,000mm^3

Question 6

Prothrombin Time (PT)

Answer 6

Both genders: 11-12.5

Notes:

• PT is used to help regulate warfarin (Coumadin)
• Therapeutic range 1.5-2 times normal

Question 7

Partial Thromboplastin Time (PTT)

Answer 7

Both genders: 60-70

Notes:

• PTT i used to help regulate heparin dosages
• Therapeutic range: 1.5-2.5 times normal

Question 8

International Normalized Ratio (INR)

Answer 8

Both genders: 0.8-1.2

Notes:

• Used to regulate warfarin
• Therapeutic range: 1.5-2x normal

Question 9

Activated Partial Thromboplastin Time (APTT)

Answer 9

Both genders: 30-40

Notes:

• APTT is used to regulate heparin dosages
• Therapeutic range: 1.5-2.5 times normal

Question 10

Alkaline Phosphatase

Answer 10

Both genders: 35-120

Question 11

Albumin

Answer 11

Both genders: 35-50 (3.5-5)

Question 12

Bilirubin Total (Bili)

Answer 12

Total: 0.3-1
Indirect: 0.2-0.8
Direct: 0.1-0.3

Question 13

Calcium

Answer 13

Both genders: 9-10.5

Notes:
*Use of thiazide diuretics can cause increased calcium values

Question 14

Chloride

Answer 14

Both genders: 98-106

Question 15

Cholesterol

Answer 15

Both genders: <200

Question 16

Aspartate Aminotransferase (AST/SGOT)

Answer 16

Adult: 0-35

Question 17

Alanine Aminotransferase (ALT/SGPT)

Answer 17

Both genders: 4-36

Question 18

Sodium

Answer 18

Both genders: 136-145

Question 19

Triglycerides

Answer 19

Male: 40-160
Female: 35-135

Question 20

Blood Urea Nitrogen (BUN)

Answer 20

Both genders: 10-20

Question 21

pH

Answer 21

Both genders: 7.35-7.45

Question 22

PCO2

Answer 22

Both genders: 35-45

Question 23

PO2

Answer 23

Both genders: 80-100
<80 mild hypoxemia
<60 moderate hypoxemia
<40 severe hypoxemia

Question 24

HCO3

Answer 24

Both genders: 21-28

Question 25

O2 Saturation

Answer 25

Both genders: 95-100 Notes: * Decreased if BP is too low * Falsely high if CO poisoning