Arterial Blood Gases

Question 1

Normal Range: pH

Answer 1

7.35 - 7.45

Question 2

Normal Range: pCO2

Answer 2

35 - 45 mmHg

Question 3

Normal Range: Bicarbonate

Answer 3

22 - 26 mEq/L

Question 4

Normal Range: Base Deficit

Answer 4

-2 to 2 mEq/L

Question 5

____ is an indicator of acid.

Answer 5

CO2

Question 6

______ moves in the same direction as pH

Answer 6

Bicarbonate

Question 7

Base Deficit Replacement Formula

Answer 7

.1 x (-BE) x KG

Question 8

Normal Range: O2

Answer 8

80 - 100 mmHg

Question 9

A PaO2 of ___ mmHg is roughly equal to an SaO2 of 90%

Answer 9

60

Question 10

Normal Range of SaO2:

Answer 10

> 95%

Question 11

If CO2 follows pH:

Answer 11

Respiratory in nature

Question 12

If HCO3 follows pH:

Answer 12

Metabolic in Nature

Question 13

if the pH is OUTSIDE of normal values, and both respiratory and metabolic are outside normal values, it is ___________.

Answer 13

Partially compensated

Question 14

If the pH is INSIDE normal values, but CO2 and HCO3 are both OUTSIDE normal ranges, the ABG is said to be ___________.

Answer 14

Fully compensated

Question 15

__________ is caused by nasogastric suctioning, diuretics, corticosteroids, antacid poisoning, Diamox

Answer 15

Metabolic Alkalosis

Question 16

___________ is caused by ketoacidosis, hyperthermia/fever, seizures and rhabdomyalysis

Answer 16

Metabolic Acidosis

Question 17

_________ is caused by ASA poisoning, or hyperthermia/heat injuries, hyper metabolic states, fever, anxiety, pain, pregnancy, high altitude

Answer 17

Respiratory Alkalosis

Question 18

________ is caused by chest wall injury, CNS depression, lung injury, rib fractures,COPD, Asthma

Answer 18

Respiratory Acidosis

Question 19

____ is a byproduct of metabolism.

Answer 19

CO2

Question 20

For every change in 10 mmHg ETCO2, you should expect the pH to change _____ the OPPOSITE directions.

Answer 20

0.8

When ETCO2 is decreased by 20 mmHg, from 50 to 30 mmHg, the pH will increase .16, from 7.20 to 7.36

Question 21

For each change in ____ in pH, you should expect HCO3 to change 10 mmol/L in the SAME direction.

Answer 21

.15

When pH is increased by .15, from 7.20 to 7.35, HCO3 will increase from 16 to 26

Question 22

For each change in .10 in pH, the K+ will shift _____ the OPPOSITE direction.

Answer 22

.6

When pH is increased by .20 from 7.20 to 7.40, K+ will decrease by 1.2 from 4.0 to 2.8