Arterial blood gas analysis

Question 1

Normal pH

Answer 1

7.35 - 7.45

Question 2

Normal PaCO2

Answer 2

35 - 45 mmHg

Question 3

Normal PaO2

Answer 3

83 - 102 mmHg

Question 4

Normal HCO3

Answer 4

22 - 28 mmol/L

Question 5

Normal anion gap

Answer 5

10 - 16 mmol/L

Question 6

What does acidosis cause?

Answer 6

Decrease in force of contractile force
Decrease in response to catacholamines
Diminished response of certain meds

Question 7

Effects of alkalosis

Answer 7

Interferes with tissue oxygenation and normal neurological and muscular functioning

Question 8

Hydrogen ion concentration is inversely proportional to pH.

Answer 8

Believe it

Question 9

How is Co2 best transported in the blood?

Answer 9

HCO3 (bicarb)

Question 10

What does the conversion of CO2 to HCO3 produce?

Answer 10

A hydrogen ion

Question 11

The higher the CO2 concentration, the ______ the pH.

Answer 11

Lower

more acidic

Question 12

How long does it take for the lungs to respond to an imbalance in pH?

Answer 12

1 - 3 minutes

Question 13

Bicarbonate

Answer 13

HCO3
Base
Buffer for hydrogen ions
Renal system maintains balance of HCO3 and H

Question 14

Respiratory Acidosis

Answer 14

Not Breathing enough!
Decreased pH
Increased PaCO2
Normal HCO3

Question 15

Respiratory Alkalosis

Answer 15

Breathing too much!
Increased pH
Decreased PaCO2
Normal HCO3

Question 16

Metabolic Acidosis

Answer 16

Renal failure, DKA
Decreased pH
Normal PaCO2
Decreased HCO3

Question 17

Metabolic Alkalosis

Answer 17

Vomiting, gastric suction, loss of gastric acid
Increased pH
Normal PaCO2
Increased HCO3