Lab Values

Question 1

Potassium (K)

Answer 1

3.5-5 mEq/L

Question 2

Sodium (Na)

Answer 2

135-145 mEq/L

Question 3

Calcium (Ca)

Answer 3

8.5-10.5 mg/L

Question 4

Chloride (Cl)

Answer 4

95-105 mEq/L

Question 5

Magnesium (Mg)

Answer 5

1.5-2.5 mEq/L

Question 6

Phosphorus (Phos)

Answer 6

2.5-4.5 mg/dL

Question 7

RBCs

Answer 7

4.5-5.0 million

Question 8

WBC

Answer 8

5k-10k

<5k = neutropenic
>10k = infection

Question 9

Platelets (Plt)

Answer 9

200k-400k

Question 10

Hemoglobin (Hgb)

Answer 10

F: 12-16 g
M: 14-18 g

Question 11

pH

Answer 11

7.35-7.45

Question 12

CO2

Answer 12

35-45

Question 13

HCO3 (Bicarb)

Answer 13

22-26

Question 14

PaO2

Answer 14

80-100%

Question 15

Glucose

Answer 15

70-110 mg/dL or 4-6 mmol/L

Question 16

HBA1C

Answer 16

<7%

Question 17

Specific Gravity

Answer 17

1.010-1.030

> 1.030 = more concentrated urine (glucose, proteins, WBC, RBC, crystals, bacteria)

<1.010 = diluted urine, kidneys not concentrating properly

Question 18

BUN

Answer 18

7-22 mg/dL

Question 19

Creatinine

Answer 19

0.6-1.2 mg/dL

Question 20

LDH

Answer 20

100-190 U/L

“bad” cholesterol

Question 21

Triglycerides

Answer 21

40-50 mg/dL

Question 22

Total cholesterol

Answer 22

130-200 mg/dL

Question 23

Protein

Answer 23

6.2-8.1 g/dL

Question 24

HDL

Answer 24

> 60 is optimal

“good” cholesterol

Question 25

Albumin

Answer 25

3.4-5.0 g/dL

Question 26

PTT (normal, on heparin)

Answer 26

30-36 seconds

On Heparin? 1.5-2.5x normal

High results mean the patient has a prolonged time forming a clot

Question 27

PT

Answer 27

9-11 seconds

High results mean the patient has a prolonged time forming a clot

Question 28

INR (normal, on warfarin)

Answer 28

<1.1

2-3 on warfarin

High results mean the patient has a prolonged time forming a clot

Question 29

Hct

Answer 29

F: 36-44
M: 41-50

measures RBC proportion in blood

Question 30

AST

Answer 30

LFT

10-30 units/L