RESP

Question 0

Blood Hb- + O2-Binding Capacity

Normal Values?

Answer 0

Normal blood Hb = 15 g / dL
Normal O2-binding capacity = 20 ml O2 / dL

↓O2 content of arterial blood.* NO CHANGE in O2 Sat or PaO2*

Question 1

Tidal Volume

Normal Value?

Answer 1

Normal = 500 ml

Question 2

V/Q Ratio

Normal Values (incl at apex vs base of lung),
-> 0 in, -> 1 in, -> ∞ in?

Answer 2

Normal (V + Q matched = adequate gas exchange) = 0.8 - 1
Normal at APEX of Lung = 3
Normal at BASE of Lung = 0.6

V/Q -> 0 in AIRWAY (V) obstruction / shunt
V/Q -> 1 in ↑CO / exercise (dilation of apical capillaries)
V/Q -> ∞ in BLOOD FLOW (Q) obstruction / dead space

Question 3

FEV1 / FVC

Normal Value,↓In?

Answer 3

Normal = 0.8 (80%)

↓IN:
- COPD

Question 4

Blood pH

Normal Value?

Answer 4

Normal = 7.4

Question 5

A-a Gradient

Normal Value, Abnormal Value?

Answer 5

Normal = 5-15 mmHg

> 30 mmHg = Primary LD

Question 6

Anion Gap

Normal Value?

Answer 6

Normal = 8-12 mEq/L

Question 7

PAO2

Normal Value?

Answer 7

Normal = 100 mmHg

Question 8

PaO2

Normal Value, Term for ↓?

Answer 8

Normal = 95 - 100 mmHg

Hypoxemia

Question 9

PACO2

Normal Value?

Answer 9

Normal = 40 mmHg

Question 10

PaCO2

Normal Value?

Answer 10

Normal = 40 mmHg

Question 11

Serum HCO3

Normal Value?

Answer 11

Normal = 22-28 mEq/L