Question

Student Copy 3 Scenario #5: Mr. J calls you into his room with a complaint of shortness of breath. His SaO2 is 89% on Room Air. He has rhonchi all lobes. T- 101, P 122, RR 36, B/P 160/92. RT draws ABGs with the following results: pH 7.33 PaCO2 72 mm Hg HCO3- 24 mEq/L 17. What is the acid base disturbance? A. Respiratory Acidosis B. Respiratory Alkalosis C. Metabolic Acidosis D. Metabolic Alkalosis 18. Is the acid base disturbance compensated or uncompensated? A. No compensation B. Partial compensation C. Full compensation 19. What are some causes of this disorder? A. vomiting, diarrhea, prolonged diuretics B. pain, fever, hyperventilation C. pneumonia, hypoventilation, pneumothorax D. renal failure, ASA overdose, starvation, ketoacidosis Is his Pa02 normal? A. Yes 20. B. No The Pa02 measures: A. Hypoxia B. Anemia 21. C. Hypoxemia D. Hydration status

Answer 1

17, a, Respiratory acidosis

When pH <7.35 and Hco3 normal (22-26mmol/L), it shows respiratory acidosis and Paco2 increase more than 45mmHg

18, b, partial compensation

If pH remains low or high the respiratory and metabolic response is called partial compensation..

19, c, pheumonia, hypoventilation, pneumothorax

Lungs and kidneys are the main organ which regulates blood pH..when there is abnormalities in lungs there is impaired lungs ability to remove CO2 is cause respiratory disorder.

20, b, No

It is high..paco2 normal range between 35-45mmHg

21, c, hypoxemia

Paco2 measures partial pressure of carbon-dioxide in arterial blood..