A patient with chronic respiratory failure

safaTerkawi

Save to bookmark

2022-08-08

122

A patient with chronic respiratory failure.

Shows an enhanced respiratory sensitivity to inhaled carbon dioxide.
Shows little or no respiratory response to hypoxia.
Is likely to have a low blood bicarbonate level.
Responds well when given 100 per cent oxygen to breathe.
Must have been breathing oxygen-enriched air if alveolar PCO2 is 150 mmHg (20 kPa).

Medicine, textbook solutions, MCQ Questions, Medicine textbook-solutions, Medicine MCQ-questions,

safaTerkawi

2022-08-08

need an explanation for this answer? contact us directly to get an explanation for this answer

A. False There is increased tolerance of high PCO2 levels.

B. False Sensitivity to low PO2 remains and is important in maintaining ventilation.

C. False HCO3- levels rise to compensate for the raised PCO2 in respiratory acidosis.

D. False This could arrest ventilation by removing hypoxic drive; 24–28 per cent O2 would do.

E. True When breathing air, PO2+PCO2 equal about 140 mmHg (19 kPa).

need an explanation for this answer? contact us directly to get an explanation for this answer

total answers (1)