Causes of hypoxemia Table

100 T

25 50 75

Figure 4-8. Effect of carbon monoxide on the hemoglobin-02 dissociation curve.

100 T

25 50 75

Figure 4-8. Effect of carbon monoxide on the hemoglobin-02 dissociation curve.

Table 4-4. Mechanisms and Examples of Hypoxemia

Mechanism i alveolar Po2 Hypoventilation

Examples

Living at high altitude

Neuromuscular disease Sedatives

Chronic obstructive pulmonary disease Fibrosis

Pulmonary embolism Pulmonary edema

Right-to-left cardiac shunt

V/Q mismatch

Venous admixture i 02-carrying capacity

Anemia

Carbon monoxide poisoning

V/Q = ventilation/perfusion.

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