Acid Base Concepts: Classification + Interpretation

Question 1

What does the ABG allow for the assessment of?

Answer 1

Acid base status
Oxygenation status

Question 2

What value best reflects acid base balance?

Answer 2

pH

Question 3

What is pH a determination of?

Answer 3

the concentration of hydrogen ions in the blood

Question 4

What is the normal range for pH?

Answer 4

7.35-7.45

Question 5

A pH of 7.40 corresponds to what concentration of hydrogen ions?

Answer 5

40 nanomole/Liter

Question 6

A pH of 7.0 corresponds to what concentration of hydrogen ions?

Answer 6

100 nanomols/L

Question 7

What is an acid?

Answer 7

any substance that releases hydrogen ions in a solution

Question 8

What is a base?

Answer 8

any substance that accepts hydrogen ions in a solution

Question 9

What can an abnormal blood pH result in?

Answer 9

Decreased oxygen delivery to tissues
Changes in myocardial contractility
Electrolyte disturbances

Question 10

What re the primary organs that regulate acid base balance?

Answer 10

Lungs and kidneys

Question 11

What symptoms are associated with alkalemia?

Answer 11

irritability
dysrhythmias
convulsions
death

Question 12

Describe the relationship between pH and hydrogen ion concentration

Answer 12

Inverse

Question 12

What symptoms are associated with acidemia?

Answer 12

drowsiness
lethargy
Coma
Death

Question 13

How does a change in PaCO2 effect pH?

Answer 13

A change of 12 mmHg in PaCO2 will cause the pH to change by 0.1 in the opposite direction