Lecture 5 Arterial Blood Glass (missed this lecture) Flashcards Preview

ICM - PULM // PEDS > Lecture 5 Arterial Blood Glass (missed this lecture) > Flashcards

Flashcards in Lecture 5 Arterial Blood Glass (missed this lecture) Deck (15):
1

Normal values according to FA (arterial blood):
pH =
PO2=
PCO2:
HCO3
SaO2

7.35-7.45;
75-105;
33-44 mm Hg (CO2 = 40)
22-28 mm Hg (HCO3 = 25)
94-98%

2

What does A-a gradient stand for? What is it normally (According to FA)

Alveolar PO2 - arterial PO2; 10-15 mm Hg

3

What does FIO2 stand for

fraction of inspired oxygen

4

Acute respiratory acidosis:
pH less than ____ and P CO2 more than ____. any kidney changes immediately?

7.35; 40;
no

5

chronic respiratory acidosis: the kidney compensates by increasing ____ absorption and increasing ___ excretion. thus, blood concentration of ____ increases

HCO3, H+;
HCO3

(never reaches normal)

6

Acute respiratory alkalosis:
pH greater than ____ and PCO2 less than _____. any kidney changes immediately?

7.45, 40;
no

7

Chronic respiratory alkalosis:
decreased _____ absorption and decreased ____ excretion; thus, blood concentration of ____ decreases

HCO3, H+;
HCO3

8

Metabolic acidosis:
pH is less than _____. HCO3- concentration is (increased or decreased compared to 25)?; is there an immediate resp response?

7.35; decreased; yes, hyperventilation (kussamul)

9

chronic metabolic acidosis:
the body increases synthesis of ____. this allows an increased excretion of ___ as _____ acid

NH3; NH4+ titratable

(from BRS)

10

metabolic alkalosis:
pH is greater than ____. HCO3- is (greater or less than 25)?; any resp response?

7.45; greater than;
yes, hypoventilation

11

Equation for anion gap:
normal anion gap is ____

Na+ - (Cl + HCO3);
8-12 mEq/L

12

what metabolic disorder can high altitude cause (hypoxemia)? what about pulmonary embolism?

respiratory alkalosis;
respiratory alkalosis

13

Airway obstruction and acute lung disease can cause what metabolic disorder?

respiratory acidosis

14

From FA:
predicted respiratory compensation for a single metabolic acidosis can be calculated using ____ formula. If the measured PCO2 differs significantly from the predicted, then a _____ disorder is likely present

winter's;
mixed acid-base

15

From FA:
what is winter's formula?

(1.5 [HCO3] ) + 8

plus or minus 2 is considered normal.