Approach to acid-base disorders Quiz: Ace Your Exams

Get ready to dominate your medical and nursing exams by using our dynamic quizzes to elevate your knowledge and increase your confidence. Whether you're gearing up for the USMLE®, COMLEX®, or your next in-class assessment, Osmosis quizzes tackle key topics in pathology, diagnostics, and treatment approaches. By honing in on clinical readiness and decision-making, we make sure the knowledge you gain empowers you both in the classroom and in real-world practice. Jump in and supercharge your exam prep!

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A 72-year-old woman presents to the emergency department with a three-day history of vomiting and diarrhea. Her medical history is significant for hypertension which is typically well-controlled with hydrochlorothiazide. She reports no fever, chest pain or difficulty breathing. Temperature is 37.0 °C (98.6 °F), heart rate is 108/min, respiratory rate is 12/min, blood pressure is 96/60 mmHg and oxygen saturation is 100% on room air. On physical examination the patient has dry mucous membranes and diminished skin turgor. Laboratory studies are shown below. Based on these studies, what is the significance of this patient’s PaCO2 value?  

A table lists Chemistry and Arterial blood gas results. Chemistry shows Sodium 132, Potassium 3.1, Chloride 90, Bicarbonate 32. ABG shows pH 7.48, PaCO2 49.

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