1. Pulmonary function tests: A. FEV1/FVC ratio is usually of the order of 0.6 B. FEV1/FVC ratios are

1.       Pulmonary function tests: A. FEV1/FVC ratio is usually of the order of 0.6 B. FEV1/FVC ratios are more helpful in demonstrating obstructive rather than restrictive lung pathologies C. In restrictive conditions FEV1 and FVC are both reduced but the ratio is often increased D. In obstructive conditions FEV1 remains constant but the FVC is often increased E. FVC and FEV1 are usually measured at the bedside with a peak flow meter 2.       Arterial blood gases (ABG): A. PaCO2 of 4.6 kPa is within the normal range B. pH is
View complete question » 1.       Pulmonary function tests: A. FEV1/FVC ratio is usually of the order of 0.6 B. FEV1/FVC ratios are more helpful in demonstrating obstructive rather than restrictive lung pathologies C. In restrictive conditions FEV1 and FVC are both reduced but the ratio is often increased D. In obstructive conditions FEV1 remains constant but the FVC is often increased E. FVC and FEV1 are usually measured at the bedside with a peak flow meter 2.       Arterial blood gases (ABG): A. PaCO2 of 4.6 kPa is within the normal range B. pH is directly proportional to the H content of blood C. Standard bicarbonate (SBC) is a direct measurement of plasma bicarbonate D. Decreasing the temperature of a sample decreases the H content E. Decreasing the temperature of a sample decreases the O2 content.

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