Lab Values

Question 1

RBC Male

Answer 1

4.71 - 5.14 million mcl

Question 2

RBC Female

Answer 2

4.2 - 4.87 million mcl

Question 3

WBC

Answer 3

4,500 - 11,000 cells/mcl

Question 4

Platelets

Answer 4

150,000 - 450, 000 cells/mcl

Question 5

Hemoglobin Male

Answer 5

13.5 - 16.5 g/dL

Question 6

Hemoglobin Female

Answer 6

12 - 15 g/dL

Question 7

Hematocrit Male

Answer 7

43 - 49%

Question 8

Hematocrit Female

Answer 8

38 - 44%

Question 9

RBC Function

Answer 9

Carry oxygen and carbon dioxide throughout the body

Question 10

WBC Function

Answer 10

Protects the body from infection

Question 11

Platelet Function

Answer 11

Helps body clot

Question 12

Why draw Hematocrit?

Answer 12

Helps monitor for anemia, dehydrations and bleeding. Represents the % of RBCs as compared to the total blood volume

Question 13

D-Dimer

Answer 13

<250 ng/ml

Question 14

BNP (Brain Natriuretic Peptide)

Answer 14

<100 pg/nk

Question 15

Why draw D-Dimer?

Answer 15

Detects clots such as PE, DVT

Question 16

Why draw BNP?

Answer 16

Identify and classify pt. with CHF

Question 17

Troponin

Answer 17

<0.4 ng/mL

Question 18

Troponin High Sensitivity

Answer 18

<100 ng/L

Question 19

Why draw Troponin?

Answer 19

Cardiac Protein
Marker of cardiac injury
Chronic Renal Failure can cause Troponin to increase also

Question 20

Why draw Troponin High Sensitivity?

Answer 20

Cardiac Protein
Marker of cardiac injury
Chronic Renal Failure can cause Troponin to increase also (Same as Troponin)

Question 21

Lipase

Answer 21

0 - 160 U/L

Question 22

Why draw Lipase?

Answer 22

Used in evaluation of pancreatic disease

Question 23

Magnesium

Answer 23

1.5 - 2.5 mg/dl

Question 24

Why draw Magnesium?

Answer 24

Electrolyte monitor

Question 25

Phosphorus

Answer 25

2.5 - 4.5 mg/dl

Question 26

Why draw Phosphorus?

Answer 26

Electrolyte monitor

Question 27

Lactic Acid

Answer 27

0.5 - 2.2 mEq/L

Question 28

Why draw Lactic Acid?

Answer 28

Measurement of the amount of lactic acid in the tissues

Increases when the muscles start to breakdown such as in shock, trauma, sepsis, etc.

Question 29

Sodium

Answer 29

135 - 145 mEq/L

Question 30

Potassium

Answer 30

3.5 - 5.2 mEq/L

Question 31

Calcium

Answer 31

8.2 - 10.2 mg/dL

Question 32

BUN

Answer 32

7 - 20

Question 33

Creatinine

Answer 33

0.7 - 1.4

Question 34

PTT

Answer 34

60 - 70 sec

Question 35

PT

Answer 35

10 - 13 sec

Question 36

INR

Answer 36

0.8 - 1.2

Question 37

Why draw PTT?

Answer 37

Effectiveness of medication such as heparin for clotting of blood

Question 38

Why draw PT?

Answer 38

How long it take for blood clot

Used for warfarin

Question 39

Why draw INR?

Answer 39

How long it take for blood to form a clot

Used when pt. are taking warfarin

Question 40

Chloride

Answer 40

97 - 107 mEq/L

Question 41

Glucose

Answer 41

70 - 115 mg/dL

Question 42

Why draw Sodium?

Answer 42

Monitor fluid and electrolytes

Question 43

Why draw Potassium?

Answer 43

Electrolyte monitor

Monitor cardiac function

Question 44

Why draw Chloride?

Answer 44

Acid/Base balance

Hydration

Question 45

Why draw Glucose?

Answer 45

Measure of blood glucose

Question 46

Why draw Calcium?

Answer 46

Acid/Base balance

Hydration

Question 47

Why draw Creatinine?

Answer 47

Renal Impairment if levels are high

Question 48

Why draw BUN?

Answer 48

Indirect measurement of renal function and glomerular filtration rate. Also helps to measure liver function. High values indicate renal impairment

Question 49

Difference between aPTT and PTT?

Answer 49

aPTT uses an activator to reduce the time taken for blood clotting.
PTT operated under regular conditions for blood clotting