B4.038 - Interpreting Arterial Blood Gas Prework 1

Question 1

Diagnosing an acid base disorder requires simultaneous measurement of what

Answer 1

serum electrolytes and arterial blood gas

Question 2

What does measuring arterial blood gas measure

Answer 2

PCO2, PO2 and pH

Question 3

What is a normal pH

Answer 3

7.38 - 7.42

Question 4

What is normal pCO2

Answer 4

38-42

Question 5

what is a normal pO2

Answer 5

80 (104 - .27(age))

Question 6

as pH increases what happens to [H+}

Answer 6

it decreases

Question 7

a change in the ration of pCO2/HCO3- predicts what

Answer 7

the change in pH, NOT actual concentrations

Question 8

a drop or rise in PCO2 reflects what with respect to H+ concentration

Answer 8

H+ will drop or rise respectively

Question 9

how does a drop or rise in bicarb level reflect [H+]

Answer 9

they are inversely related

Question 10

optimal pH

Answer 10

7.4

Question 11

optimal pCO2

Answer 11

40

Question 12

optimal HCO3-

Answer 12

24

Question 13

overall acid base status is defined by

Answer 13

pH

Question 14

what is acidemia

Answer 14

decrease in blood pH below normal

Question 15

what is alkalemia

Answer 15

elevation in blood pH above normal

Question 16

what is metabolic acidosis

Answer 16

increased [H+} due to reducing HCO3-

Question 17

what is respiratory acidosis

Answer 17

Increased [H+} due to increasing PCO2

Question 18

what is metabolic alkalosis

Answer 18

reduced [H+} by increasing HCO3-

Question 19

what is respiratory alkalosis

Answer 19

reduced [H+} be decreasing PCO2

Question 20

in a simple disorder what should be seen with respect to PCO2 and HCO3

Answer 20

they should move in the same direction to keep the ratio balanced