Acid-Base Disorders: An Overview

Acid-base disorders are commonly encountered in medicine. It is therefore important for the practitioner to know how to accurately interpret acid-base information as obtained from arterial blood gases, serum chemistries, urine electrolytes, and other sources. The below table can be used to quickly evaluate acid-base disorders. Continue reading

Imaging Sign of the Day: Tree in Bud Sign

Tree in bud sign – describes the CT chest appearance of multiple centrilobular nodules that are connected by branching opacified bronchioles. Although initially described in patients with endobronchial tuberculosis, it is now recognized in a large number of conditions ranging from small airways infections like mycobacterium avium complex, to connective tissue diseases like rheumatoid arthritis, to neoplastic conditions like bronchioloalveolar cell carcinoma.

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