Lab Values

Question 0

PaO2

Answer 0

80-100mmHg

Increased with hyperventilation
Decreased with cardiac decompensation, COPD

Question 1

PaCO2

Answer 1

35-45 mmHg

Increased with COPD
Decreased with pregnancy, PE, anxiety

Question 2

pH

Answer 2

7.35-7.45

Increased with respiratory/metabolic alkalosis
Decreased with respiratory/metabolic acidosis

Question 3

HCO3

Answer 3

22-26 mEq/L

Question 4

ABI

Answer 4

> or = 1-1.3

Question 5

Erythrocyte sedimentation rate

Answer 5

Males - <20 mm / hour

Determines presence or stage of inflammation(increases)

Question 6

RBCs

Answer 6

4-6 million/ul

Increased with polycythemia Vera
Decreased with anemia

Question 7

WBCs

Answer 7

Indicative of status of immune system
5000-10,000

Increased with infection and inflammation
Decreased with aplastic anemia, B12, folate deficiency
< 5000 exercise contraindicated

Question 8

Hematocrit

Answer 8

RBCs in whole blood

Females: 37-47%
Males: 42-52%

Increased in shock/dehydration
Decreased in anemia
>25% but less than normal: light exercise
<25% exercise contraindicated

Question 9

Hemoglobin

Answer 9

Female: 12-16 g
Male: 14-18 g

Increased with polycythemia, shock
Decreased with anemia, hemorrhage

8-10: light exercise
<8: exercise contraindicated

Question 10

Platelets

Answer 10

150,000-450,000

Increased in leukemia
Decreased in anemia, chemotherapy

<20,000: AROM, ADLs
20,000-30,000: light exercise

Question 11

SpO2

Answer 11

95-100%

<88% supplemental O2

Question 12

Prothrombin time (PT)

Answer 12

11-15 sec

Increased in factor X deficiency, cirrhosis, hemorrhagic diseases

PT contraindicated if clotting time 2.5x or more than normal

Question 13

Partial thromboplastin time (PTT)

Answer 13

25-40 sec

Increased in factor VII, IX, Xdeficiency

Question 14

INR

Answer 14

Pts PT to reference range

0.9-1.1
>2 increased risk of bleeding

Question 15

C reactive protein

Answer 15

100 mg/L with infection/inflammation